National Grid Distributed Generation Seminar
35
MA Interconnection Process Meeting July 16 th , 2020 (Webex) National Grid Distributed Generation Seminar The information summarized in this Seminar for the convenience of customers is current as of July 16, 2020 and neither the slides nor related recording should be relied on for a particular project. Customers are responsible for ensuring that they comply with all distributed generation rules and regulations, including the distributed generation Tariff, for their particular project.
Transcript of National Grid Distributed Generation Seminar
MA Interconnection Process Meeting
July 16th 2020 (Webex)
National GridDistributed Generation Seminar
The information summarized in this Seminar for the convenience of customers is current as of July 16 2020 and neither the slides
nor related recording should be relied on for a particular project
Customers are responsible for ensuring that they comply with all
distributed generation rules and regulations including the
distributed generation Tariff for their particular project
2National Grid
This presentation has been prepared solely as an aid to discussions
between National Grid and interested stakeholders and should not be
used for any other purposes This presentation contains high-level
general information (not project specific) which may not be applicable in all
circumstances National Grid makes no guarantees of completeness
accuracy or usefulness of this information or warranties of any kind
whatsoever express or implied National Grid assumes no responsibility
or liability for any errors or omissions in the content Nothing contained in
this presentation shall constitute legal or business advice or counsel
No party is authorized to modify this presentation
The Webinar is being recorded
The information in this presentation could be affected by future revisions to
the Standards for Interconnection of Distributed Generation MPDU No
1320 (Tariff) in open docket DPU 19-55
Disclaimer
3National Grid
Agenda
| July Interconnection Webinar | July 16 2020
01 Welcome amp Opening Remarks ndash Will Kern
Safety message
COVID amp Force Majeure
2
02 Energy Storage Systems ndash Margaret Campbell 5
03
04
05
Interconnection Process Review
Simplified ndash Margaret Campbell
Expedited ndash Mike Armell
Standard ndash Nat Mahattanasakul
9
15
24
06 Process Improvement ndash Will Kern 30
07 QampA 32
4National Grid
Safety Moment Heat Exhaustion
bull Heat exhaustion symptoms include being pale ashen
or moist muscle cramps fatigue weakness or
dizziness
bull Be cognizant of compounded effects when working in
front of a grill youll get tired much faster than you
normally would based on the weather alone
bull Heat exhaustion can evolve into heat stroke quickly so
monitor symptoms and immediately move victims to
shaded or air-conditioned areas
bull Provide water or other cool nonalcoholic beverages
but dont force it
bull Seek medical attention immediately if body temperature
is above 103 or the individual is unresponsive
| July Interconnection Webinar | July 16 2020
5National Grid
COVID amp Force Majeure
| July Interconnection Webinar | July 16 2020
Payment extensions are no longer applicable
The company is working close to blue sky operations
however we will continue to monitor the situation as it develops
There have been very few Force Majeure impacts to cases which
were managed closely with the impacted developers
Payment due dates are not extended by Force Majeure per Tariff
Updates will continue to be posted
at httpsngusforcecomsarticleMA-Force-Majeure-
Declarations
Energy Storage
SystemsMargaret Campbell
02
7National Grid | July Interconnection Webinar | July 16 2020
New Storage Case Fields
New Application for Generation without Storage
New Application for Generation and Storage
New Application for Stand Alone Energy Storage
Add Storage to Existing Generation
AC-Coupled
DC-Coupled
Separate PCC
Electric Grid Only
Unrestricted Electric Grid or Generation
Restricted Electric Grid or Generation
Generation Only
Electric Grid Only
Unrestricted Electric Grid or Onsite Load
Restricted Electric Grid or Onsite Load
Onsite Load Only
AC Storage are included in the system size when determining if an application is simplified
expedited or standard so Storage AC kW is important to route application correctly
The Storage Charging Capability and Storage Discharging Capability values should match the
note on the one-line indicating how the storage will charge and discharge
8National Grid | July Interconnection Webinar | July 16 2020
Energy Storage System (ESS) Assets
The Inverter Information
This is the inverter for the ESS not the ESS itself
For DC coupled this is often the same inverter as the solar for example a SolarEdge inverter
For AC coupled this can be a separate inverter or the same as the ESS if it is a combined unit for example Powerwall
The ESS Information
Must be completed for AC and DC coupled batteries
The Storage Capacity per Device (kW DC) or (kW AC) is required (often
missed)
The Relay Information
Provides space for inputting ESS operating hours otherwise can be included in
the ESS information as an upload under special guidance
9National Grid | July Interconnection Webinar | July 16 2020
Energy Storage System (ESS) Form
The ESS Form is required and must be filled out electronically on the
portal (cannot be upload only)
Most of the fields on the ESS form are pre-populated from the Storage
case or values already entered on the case
If any of the pre-populated values look incorrect or need to be
updated please update the storage asset or reach to out to CEI
job owner thru Chatter
Link for knowledge page for adding a storage
asset httpsngusforcecomservletservletFileDownloadfile=0150W00000E
oHnv
Link for Storage Assistance httpsngusforcecomsarticleStorage-
Assistance
Simplified Review
ProcessMargaret Campbell
03
11National Grid | July Interconnection Webinar | July 16 2020
Simplified Criteria
UL Listed (1741 SA) inverter-based systems with power ratings of
15kW or less on a single phase service on a radial feed
UL Listed (1741 SA) inverter-based systems with power ratings of
25kW or less on a three phase service on a radial feed
The Simplified process does not apply for
Non-listed inverters or other generators (induction synchronous
asynchronous)
Aggregate generation capacity of listed inverters that exceed the
above-mentioned limits
Project that did not pass the Simplified process Screens
12National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Application
Simplified
Conditional Approval (to construct DG system)
Witness Test (completion package)
Authorization to Interconnect
httpswwwnationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
13National Grid | July Interconnection Webinar | July 16 2020
Simplified Review Path
Simplified Process
Eligible Facilities Listed Small Inverter
Acknowledge Receipt of Application (3 days)
Review Application for Completeness 10 days
Complete Review of All Screens 15-20 days
Complete Supplemental Review (if needed) NA
Complete Standard Process Initial Review NA
Send Follow-on Studies CostAgreement NA
Complete Impact Study (if needed) NA
Complete Detailed Study (if needed) NA
Send Executable Agreement Done The agreement is part of the application
Total Maximum Days 25 days (30 in the case of failure of Screen 5)
Construction Schedule Varied
Witness Test Within 10 days from receipt of the Certificate of Completion or by mutual agreement
14National Grid | July Interconnection Webinar | July 16 2020
Common Holds or Concerns
Application
The application must match the customerrsquos account name address
account number and meter number
Wait to construct the system until after Conditional Approval is issued
After Conditional Approval
Complete the Service Upgrade Form so the work request can be
created and provided to the wire inspector at the before the inspection
Completion Package
Have Wire Inspection called in before submitting Completion
Documents
15National Grid | July Interconnection Webinar | July 16 2020
Recent Portal Improvements
Expedited Review
ProcessMike Armell
04
17National Grid | July Interconnection Webinar | July 16 2020
Expedited Criteria
Single phase customers with listed single-phase inverter based
systems with power ratings of gt15 kW on a radial feed
Three phase customers with listed three-phase inverter based
systems with power ratings of gt25kW on a radial feed
Any project that did not pass the Simplified process Screens
Non-Simplified projects that do not require an Impact Study
Maximum size supplemental review is based on review of
Screens
18National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Pre-Application (if 500 kW or greater)
Application
Expedited
Engineering Review
Supplemental Review
Conditional Approval (to construct DG system)
Company Construction
Witness Test (where applicable)
Completion Document Review and Meter Set
Authorization to Interconnect
httpswwwnationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
19National Grid | July Interconnection Webinar | July 16 2020
Expedited Review Path
Expedited
Eligible Facilities Listed Inverter DG
Acknowledge Receipt of Application(3 days)
Review Application for Completeness10 days
Complete Review of All Screens25 days
Complete Supplemental Review (if needed)20 days or Standard Process
Send Executable Agreement10 days
Total Maximum Days 4565 days
Construction ScheduleVaried
Notice Witness TestWithin 10 days of receiving Certificate of
Completion or by mutual agreement
If any Screens are not passed the
Company may require a Supplemental Review Agreementbefore providing an Interconnection
Service Agreement
Key threshold if aggregate
generation is less than 67 of minimum load on the
feeder Other Screens review voltage quality reliability and safety to reduce the potential
need for Impact Studies
Relay control system must be well
defined to make SupplementalReview easier
20National Grid | July Interconnection Webinar | July 16 2020
Recent Improvements
Infrastructure List View-Can be found at the bottom of the home
page on the portal
Lists of all feeders in each jurisdiction (MA NY RI) that can be
sorted by Feeder Name Substation Transformer Name
Operating District Connected DG kWAC Pending DG kWAC
whether or not the Feeders are Registered with FERC
Link to
guide httpsngusforcecomservletservletFileDownloadfile=
0150W00000FKqNQ
Developers have access in portal to view muni WO for completion
21National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
For most Expedited applications a ldquoCommissioning Memordquo on
a company letterhead is provided in lieu of Witness Test
Commissioning test should consist of the following
1 Two (2) second shutdown when disconnect open test
2 Five (5) minutes before restart when disconnect is closed test
3 Confirm system matches As-built (include most recent revision
date of as built provided)
4 List the inverter relay frequency (Hz) and trip time settings
22National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
As Built Must be PE stamped and signed dated by person
that performed the commissioning test (Signature date
should match date of test)
Pictures Meter picture should show permanent plaque
(visible at eye level) that includes a warning about generator
installed
Pictures If the AC utility disconnect switch is not grouped
with and adjacent to the utility revenue meter then a
permanent plaque (visible at eye level) that clearly identifies
the location of the AC utility disconnect is required
23National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
Evidence of insurance is required for all projects gt 60kW in
MA and gt50kW in RI Refer to the ISA and Interconnection
Tariff for insurance requirements
Qualifying Facility documents
Schedule A (P-Rate) required for all QF projects
W9 (Only for projects gt60kW)
ACH (Only for projects gt60kW)
Supplier Enrollment Form (Only for projects gt60kW)
24National Grid | July Interconnection Webinar | July 16 2020
Metering Reminder
Projects greater than 60kW in MA and greater than 25kW in RI
require interval metering (Wireless or phone line)
Company needs a 4G wireless signal test on a Verizon network in
order to provide wireless metering
Phone lines must be dedicated and terminated at the meter
location Line must be 100 copper Fiber lines will not
communicate properly
These meters are long lead time items and prep time can be 6-8
weeks so it is important to work through this with your job owner
well in advance of when you intend to seek Authority to
Interconnect
Wireless test form httpsngusforcecomsarticleMA-
Interconnection-Documents
Standard Review
ProcessNat Mahattanasakul
05
26National Grid | July Interconnection Webinar | July 16 2020
Standard Criteria
Applies to
Projects that require Distribution System Impact Study (DSIS)
Large-scale DG projects
Generally greater than 500 kW but project specific
DG projects requiring System Modifications at the substation level
Non-listed inverters or generators other than PV
Induction Synchronous Asynchronous
Most CHP systems
All projects that do not qualify for the Simplified or Expedited process
27National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Pre-Application
Application
Standard
Engineering Review
Impact StudyDetailed Study
Conditional Approval (to construct DG system)
Company Construction
Witness Test
Authorization to Interconnect
httpsngusforcecomsarticleMA-Complex-Standard-Application-Process
28National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Standard
Eligible Facilities Any DG
Acknowledge Receipt of Application (3 days)
Review Application for Completeness 10 days
Complete Standard Process Initial Review 20 days
Send Impact Study Agreement 5 days
Complete Impact Study 55-60 days or by mutual agreement depending on complexity
Complete Detailed Study (if needed) 30 ndash 60 days or by mutual agreement depending on complexity
Send Executable Agreement (ISA) 15 days
Total Maximum Days 135160 days (200 days for Standard Complex)
Construction Schedule Varied
Witness Test10 days from the Companyrsquos approval of WT procedures or
by mutual agreement
29National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Impact Study will determine the level of impact on the Companyrsquos EPS and the required System
Modifications
Impact and Detailed Study (if applicable) will determine System Modifications required and cost
(Risk of Islanding)
ISO-NE Generator Notification Process will be required for applications that are greater than 1MW
but less than 5MW (ie PP5-1 or GNF) and a Proposed Plan Application (PPA) along with supporting Transmission System Impact Study (TSIS) will be required for applications 5MW or greater in size single or potentially in aggregate Size of project based on nameplate rating of
system
These requirements will add time to the DG Interconnection Process if there is an ASO hold If so
the DSIS will be placed on hold until the ISO-NE approval or determination is known likely at a point during the DSIS process
Interconnection Service Agreement (ISA) provided after Study completed or an Early ISA could be requested if Detailed Study is required
If substation modifications required Company has 60 BD for Study (MDPU 1320 ndash pg 50) or by mutual agreement if estimated construction cost greater than $1 million
30National Grid | July Interconnection Webinar | July 16 2020
New CEI Structure
Process Improvement
amp Future TopicsWill Kern
06
32National Grid | July Interconnection Webinar | July 16 2020
Process Improvement amp Future Topics
Potential webinar topics
Verizon initiatives
Hosting Capacity Maps
Metering
Mike Porcaro as Ombudsperson
Questions
07
34National Grid | July Interconnection Webinar | July 16 2020
Appendix Summary of Resources Documents amp Links
Distributed Generation Website ndash
httpswww9nationalgriduscommasselectrichomeenergyeffdistributed_gen
erationasp
Interconnection Process Resources ndash
httpswww9nationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
Storage Assistance -
httpsngusforcecomsarticleStorage-Assistance
DPU Interim Guidance for ESS -
httpsngusforcecomsarticleHow-to-Add-Energy-Storage-to-an-In-Progress-Application-in-Massachusetts
| [Insert document title] | [Insert date]
2National Grid
This presentation has been prepared solely as an aid to discussions
between National Grid and interested stakeholders and should not be
used for any other purposes This presentation contains high-level
general information (not project specific) which may not be applicable in all
circumstances National Grid makes no guarantees of completeness
accuracy or usefulness of this information or warranties of any kind
whatsoever express or implied National Grid assumes no responsibility
or liability for any errors or omissions in the content Nothing contained in
this presentation shall constitute legal or business advice or counsel
No party is authorized to modify this presentation
The Webinar is being recorded
The information in this presentation could be affected by future revisions to
the Standards for Interconnection of Distributed Generation MPDU No
1320 (Tariff) in open docket DPU 19-55
Disclaimer
3National Grid
Agenda
| July Interconnection Webinar | July 16 2020
01 Welcome amp Opening Remarks ndash Will Kern
Safety message
COVID amp Force Majeure
2
02 Energy Storage Systems ndash Margaret Campbell 5
03
04
05
Interconnection Process Review
Simplified ndash Margaret Campbell
Expedited ndash Mike Armell
Standard ndash Nat Mahattanasakul
9
15
24
06 Process Improvement ndash Will Kern 30
07 QampA 32
4National Grid
Safety Moment Heat Exhaustion
bull Heat exhaustion symptoms include being pale ashen
or moist muscle cramps fatigue weakness or
dizziness
bull Be cognizant of compounded effects when working in
front of a grill youll get tired much faster than you
normally would based on the weather alone
bull Heat exhaustion can evolve into heat stroke quickly so
monitor symptoms and immediately move victims to
shaded or air-conditioned areas
bull Provide water or other cool nonalcoholic beverages
but dont force it
bull Seek medical attention immediately if body temperature
is above 103 or the individual is unresponsive
| July Interconnection Webinar | July 16 2020
5National Grid
COVID amp Force Majeure
| July Interconnection Webinar | July 16 2020
Payment extensions are no longer applicable
The company is working close to blue sky operations
however we will continue to monitor the situation as it develops
There have been very few Force Majeure impacts to cases which
were managed closely with the impacted developers
Payment due dates are not extended by Force Majeure per Tariff
Updates will continue to be posted
at httpsngusforcecomsarticleMA-Force-Majeure-
Declarations
Energy Storage
SystemsMargaret Campbell
02
7National Grid | July Interconnection Webinar | July 16 2020
New Storage Case Fields
New Application for Generation without Storage
New Application for Generation and Storage
New Application for Stand Alone Energy Storage
Add Storage to Existing Generation
AC-Coupled
DC-Coupled
Separate PCC
Electric Grid Only
Unrestricted Electric Grid or Generation
Restricted Electric Grid or Generation
Generation Only
Electric Grid Only
Unrestricted Electric Grid or Onsite Load
Restricted Electric Grid or Onsite Load
Onsite Load Only
AC Storage are included in the system size when determining if an application is simplified
expedited or standard so Storage AC kW is important to route application correctly
The Storage Charging Capability and Storage Discharging Capability values should match the
note on the one-line indicating how the storage will charge and discharge
8National Grid | July Interconnection Webinar | July 16 2020
Energy Storage System (ESS) Assets
The Inverter Information
This is the inverter for the ESS not the ESS itself
For DC coupled this is often the same inverter as the solar for example a SolarEdge inverter
For AC coupled this can be a separate inverter or the same as the ESS if it is a combined unit for example Powerwall
The ESS Information
Must be completed for AC and DC coupled batteries
The Storage Capacity per Device (kW DC) or (kW AC) is required (often
missed)
The Relay Information
Provides space for inputting ESS operating hours otherwise can be included in
the ESS information as an upload under special guidance
9National Grid | July Interconnection Webinar | July 16 2020
Energy Storage System (ESS) Form
The ESS Form is required and must be filled out electronically on the
portal (cannot be upload only)
Most of the fields on the ESS form are pre-populated from the Storage
case or values already entered on the case
If any of the pre-populated values look incorrect or need to be
updated please update the storage asset or reach to out to CEI
job owner thru Chatter
Link for knowledge page for adding a storage
asset httpsngusforcecomservletservletFileDownloadfile=0150W00000E
oHnv
Link for Storage Assistance httpsngusforcecomsarticleStorage-
Assistance
Simplified Review
ProcessMargaret Campbell
03
11National Grid | July Interconnection Webinar | July 16 2020
Simplified Criteria
UL Listed (1741 SA) inverter-based systems with power ratings of
15kW or less on a single phase service on a radial feed
UL Listed (1741 SA) inverter-based systems with power ratings of
25kW or less on a three phase service on a radial feed
The Simplified process does not apply for
Non-listed inverters or other generators (induction synchronous
asynchronous)
Aggregate generation capacity of listed inverters that exceed the
above-mentioned limits
Project that did not pass the Simplified process Screens
12National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Application
Simplified
Conditional Approval (to construct DG system)
Witness Test (completion package)
Authorization to Interconnect
httpswwwnationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
13National Grid | July Interconnection Webinar | July 16 2020
Simplified Review Path
Simplified Process
Eligible Facilities Listed Small Inverter
Acknowledge Receipt of Application (3 days)
Review Application for Completeness 10 days
Complete Review of All Screens 15-20 days
Complete Supplemental Review (if needed) NA
Complete Standard Process Initial Review NA
Send Follow-on Studies CostAgreement NA
Complete Impact Study (if needed) NA
Complete Detailed Study (if needed) NA
Send Executable Agreement Done The agreement is part of the application
Total Maximum Days 25 days (30 in the case of failure of Screen 5)
Construction Schedule Varied
Witness Test Within 10 days from receipt of the Certificate of Completion or by mutual agreement
14National Grid | July Interconnection Webinar | July 16 2020
Common Holds or Concerns
Application
The application must match the customerrsquos account name address
account number and meter number
Wait to construct the system until after Conditional Approval is issued
After Conditional Approval
Complete the Service Upgrade Form so the work request can be
created and provided to the wire inspector at the before the inspection
Completion Package
Have Wire Inspection called in before submitting Completion
Documents
15National Grid | July Interconnection Webinar | July 16 2020
Recent Portal Improvements
Expedited Review
ProcessMike Armell
04
17National Grid | July Interconnection Webinar | July 16 2020
Expedited Criteria
Single phase customers with listed single-phase inverter based
systems with power ratings of gt15 kW on a radial feed
Three phase customers with listed three-phase inverter based
systems with power ratings of gt25kW on a radial feed
Any project that did not pass the Simplified process Screens
Non-Simplified projects that do not require an Impact Study
Maximum size supplemental review is based on review of
Screens
18National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Pre-Application (if 500 kW or greater)
Application
Expedited
Engineering Review
Supplemental Review
Conditional Approval (to construct DG system)
Company Construction
Witness Test (where applicable)
Completion Document Review and Meter Set
Authorization to Interconnect
httpswwwnationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
19National Grid | July Interconnection Webinar | July 16 2020
Expedited Review Path
Expedited
Eligible Facilities Listed Inverter DG
Acknowledge Receipt of Application(3 days)
Review Application for Completeness10 days
Complete Review of All Screens25 days
Complete Supplemental Review (if needed)20 days or Standard Process
Send Executable Agreement10 days
Total Maximum Days 4565 days
Construction ScheduleVaried
Notice Witness TestWithin 10 days of receiving Certificate of
Completion or by mutual agreement
If any Screens are not passed the
Company may require a Supplemental Review Agreementbefore providing an Interconnection
Service Agreement
Key threshold if aggregate
generation is less than 67 of minimum load on the
feeder Other Screens review voltage quality reliability and safety to reduce the potential
need for Impact Studies
Relay control system must be well
defined to make SupplementalReview easier
20National Grid | July Interconnection Webinar | July 16 2020
Recent Improvements
Infrastructure List View-Can be found at the bottom of the home
page on the portal
Lists of all feeders in each jurisdiction (MA NY RI) that can be
sorted by Feeder Name Substation Transformer Name
Operating District Connected DG kWAC Pending DG kWAC
whether or not the Feeders are Registered with FERC
Link to
guide httpsngusforcecomservletservletFileDownloadfile=
0150W00000FKqNQ
Developers have access in portal to view muni WO for completion
21National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
For most Expedited applications a ldquoCommissioning Memordquo on
a company letterhead is provided in lieu of Witness Test
Commissioning test should consist of the following
1 Two (2) second shutdown when disconnect open test
2 Five (5) minutes before restart when disconnect is closed test
3 Confirm system matches As-built (include most recent revision
date of as built provided)
4 List the inverter relay frequency (Hz) and trip time settings
22National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
As Built Must be PE stamped and signed dated by person
that performed the commissioning test (Signature date
should match date of test)
Pictures Meter picture should show permanent plaque
(visible at eye level) that includes a warning about generator
installed
Pictures If the AC utility disconnect switch is not grouped
with and adjacent to the utility revenue meter then a
permanent plaque (visible at eye level) that clearly identifies
the location of the AC utility disconnect is required
23National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
Evidence of insurance is required for all projects gt 60kW in
MA and gt50kW in RI Refer to the ISA and Interconnection
Tariff for insurance requirements
Qualifying Facility documents
Schedule A (P-Rate) required for all QF projects
W9 (Only for projects gt60kW)
ACH (Only for projects gt60kW)
Supplier Enrollment Form (Only for projects gt60kW)
24National Grid | July Interconnection Webinar | July 16 2020
Metering Reminder
Projects greater than 60kW in MA and greater than 25kW in RI
require interval metering (Wireless or phone line)
Company needs a 4G wireless signal test on a Verizon network in
order to provide wireless metering
Phone lines must be dedicated and terminated at the meter
location Line must be 100 copper Fiber lines will not
communicate properly
These meters are long lead time items and prep time can be 6-8
weeks so it is important to work through this with your job owner
well in advance of when you intend to seek Authority to
Interconnect
Wireless test form httpsngusforcecomsarticleMA-
Interconnection-Documents
Standard Review
ProcessNat Mahattanasakul
05
26National Grid | July Interconnection Webinar | July 16 2020
Standard Criteria
Applies to
Projects that require Distribution System Impact Study (DSIS)
Large-scale DG projects
Generally greater than 500 kW but project specific
DG projects requiring System Modifications at the substation level
Non-listed inverters or generators other than PV
Induction Synchronous Asynchronous
Most CHP systems
All projects that do not qualify for the Simplified or Expedited process
27National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Pre-Application
Application
Standard
Engineering Review
Impact StudyDetailed Study
Conditional Approval (to construct DG system)
Company Construction
Witness Test
Authorization to Interconnect
httpsngusforcecomsarticleMA-Complex-Standard-Application-Process
28National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Standard
Eligible Facilities Any DG
Acknowledge Receipt of Application (3 days)
Review Application for Completeness 10 days
Complete Standard Process Initial Review 20 days
Send Impact Study Agreement 5 days
Complete Impact Study 55-60 days or by mutual agreement depending on complexity
Complete Detailed Study (if needed) 30 ndash 60 days or by mutual agreement depending on complexity
Send Executable Agreement (ISA) 15 days
Total Maximum Days 135160 days (200 days for Standard Complex)
Construction Schedule Varied
Witness Test10 days from the Companyrsquos approval of WT procedures or
by mutual agreement
29National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Impact Study will determine the level of impact on the Companyrsquos EPS and the required System
Modifications
Impact and Detailed Study (if applicable) will determine System Modifications required and cost
(Risk of Islanding)
ISO-NE Generator Notification Process will be required for applications that are greater than 1MW
but less than 5MW (ie PP5-1 or GNF) and a Proposed Plan Application (PPA) along with supporting Transmission System Impact Study (TSIS) will be required for applications 5MW or greater in size single or potentially in aggregate Size of project based on nameplate rating of
system
These requirements will add time to the DG Interconnection Process if there is an ASO hold If so
the DSIS will be placed on hold until the ISO-NE approval or determination is known likely at a point during the DSIS process
Interconnection Service Agreement (ISA) provided after Study completed or an Early ISA could be requested if Detailed Study is required
If substation modifications required Company has 60 BD for Study (MDPU 1320 ndash pg 50) or by mutual agreement if estimated construction cost greater than $1 million
30National Grid | July Interconnection Webinar | July 16 2020
New CEI Structure
Process Improvement
amp Future TopicsWill Kern
06
32National Grid | July Interconnection Webinar | July 16 2020
Process Improvement amp Future Topics
Potential webinar topics
Verizon initiatives
Hosting Capacity Maps
Metering
Mike Porcaro as Ombudsperson
Questions
07
34National Grid | July Interconnection Webinar | July 16 2020
Appendix Summary of Resources Documents amp Links
Distributed Generation Website ndash
httpswww9nationalgriduscommasselectrichomeenergyeffdistributed_gen
erationasp
Interconnection Process Resources ndash
httpswww9nationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
Storage Assistance -
httpsngusforcecomsarticleStorage-Assistance
DPU Interim Guidance for ESS -
httpsngusforcecomsarticleHow-to-Add-Energy-Storage-to-an-In-Progress-Application-in-Massachusetts
| [Insert document title] | [Insert date]
3National Grid
Agenda
| July Interconnection Webinar | July 16 2020
01 Welcome amp Opening Remarks ndash Will Kern
Safety message
COVID amp Force Majeure
2
02 Energy Storage Systems ndash Margaret Campbell 5
03
04
05
Interconnection Process Review
Simplified ndash Margaret Campbell
Expedited ndash Mike Armell
Standard ndash Nat Mahattanasakul
9
15
24
06 Process Improvement ndash Will Kern 30
07 QampA 32
4National Grid
Safety Moment Heat Exhaustion
bull Heat exhaustion symptoms include being pale ashen
or moist muscle cramps fatigue weakness or
dizziness
bull Be cognizant of compounded effects when working in
front of a grill youll get tired much faster than you
normally would based on the weather alone
bull Heat exhaustion can evolve into heat stroke quickly so
monitor symptoms and immediately move victims to
shaded or air-conditioned areas
bull Provide water or other cool nonalcoholic beverages
but dont force it
bull Seek medical attention immediately if body temperature
is above 103 or the individual is unresponsive
| July Interconnection Webinar | July 16 2020
5National Grid
COVID amp Force Majeure
| July Interconnection Webinar | July 16 2020
Payment extensions are no longer applicable
The company is working close to blue sky operations
however we will continue to monitor the situation as it develops
There have been very few Force Majeure impacts to cases which
were managed closely with the impacted developers
Payment due dates are not extended by Force Majeure per Tariff
Updates will continue to be posted
at httpsngusforcecomsarticleMA-Force-Majeure-
Declarations
Energy Storage
SystemsMargaret Campbell
02
7National Grid | July Interconnection Webinar | July 16 2020
New Storage Case Fields
New Application for Generation without Storage
New Application for Generation and Storage
New Application for Stand Alone Energy Storage
Add Storage to Existing Generation
AC-Coupled
DC-Coupled
Separate PCC
Electric Grid Only
Unrestricted Electric Grid or Generation
Restricted Electric Grid or Generation
Generation Only
Electric Grid Only
Unrestricted Electric Grid or Onsite Load
Restricted Electric Grid or Onsite Load
Onsite Load Only
AC Storage are included in the system size when determining if an application is simplified
expedited or standard so Storage AC kW is important to route application correctly
The Storage Charging Capability and Storage Discharging Capability values should match the
note on the one-line indicating how the storage will charge and discharge
8National Grid | July Interconnection Webinar | July 16 2020
Energy Storage System (ESS) Assets
The Inverter Information
This is the inverter for the ESS not the ESS itself
For DC coupled this is often the same inverter as the solar for example a SolarEdge inverter
For AC coupled this can be a separate inverter or the same as the ESS if it is a combined unit for example Powerwall
The ESS Information
Must be completed for AC and DC coupled batteries
The Storage Capacity per Device (kW DC) or (kW AC) is required (often
missed)
The Relay Information
Provides space for inputting ESS operating hours otherwise can be included in
the ESS information as an upload under special guidance
9National Grid | July Interconnection Webinar | July 16 2020
Energy Storage System (ESS) Form
The ESS Form is required and must be filled out electronically on the
portal (cannot be upload only)
Most of the fields on the ESS form are pre-populated from the Storage
case or values already entered on the case
If any of the pre-populated values look incorrect or need to be
updated please update the storage asset or reach to out to CEI
job owner thru Chatter
Link for knowledge page for adding a storage
asset httpsngusforcecomservletservletFileDownloadfile=0150W00000E
oHnv
Link for Storage Assistance httpsngusforcecomsarticleStorage-
Assistance
Simplified Review
ProcessMargaret Campbell
03
11National Grid | July Interconnection Webinar | July 16 2020
Simplified Criteria
UL Listed (1741 SA) inverter-based systems with power ratings of
15kW or less on a single phase service on a radial feed
UL Listed (1741 SA) inverter-based systems with power ratings of
25kW or less on a three phase service on a radial feed
The Simplified process does not apply for
Non-listed inverters or other generators (induction synchronous
asynchronous)
Aggregate generation capacity of listed inverters that exceed the
above-mentioned limits
Project that did not pass the Simplified process Screens
12National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Application
Simplified
Conditional Approval (to construct DG system)
Witness Test (completion package)
Authorization to Interconnect
httpswwwnationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
13National Grid | July Interconnection Webinar | July 16 2020
Simplified Review Path
Simplified Process
Eligible Facilities Listed Small Inverter
Acknowledge Receipt of Application (3 days)
Review Application for Completeness 10 days
Complete Review of All Screens 15-20 days
Complete Supplemental Review (if needed) NA
Complete Standard Process Initial Review NA
Send Follow-on Studies CostAgreement NA
Complete Impact Study (if needed) NA
Complete Detailed Study (if needed) NA
Send Executable Agreement Done The agreement is part of the application
Total Maximum Days 25 days (30 in the case of failure of Screen 5)
Construction Schedule Varied
Witness Test Within 10 days from receipt of the Certificate of Completion or by mutual agreement
14National Grid | July Interconnection Webinar | July 16 2020
Common Holds or Concerns
Application
The application must match the customerrsquos account name address
account number and meter number
Wait to construct the system until after Conditional Approval is issued
After Conditional Approval
Complete the Service Upgrade Form so the work request can be
created and provided to the wire inspector at the before the inspection
Completion Package
Have Wire Inspection called in before submitting Completion
Documents
15National Grid | July Interconnection Webinar | July 16 2020
Recent Portal Improvements
Expedited Review
ProcessMike Armell
04
17National Grid | July Interconnection Webinar | July 16 2020
Expedited Criteria
Single phase customers with listed single-phase inverter based
systems with power ratings of gt15 kW on a radial feed
Three phase customers with listed three-phase inverter based
systems with power ratings of gt25kW on a radial feed
Any project that did not pass the Simplified process Screens
Non-Simplified projects that do not require an Impact Study
Maximum size supplemental review is based on review of
Screens
18National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Pre-Application (if 500 kW or greater)
Application
Expedited
Engineering Review
Supplemental Review
Conditional Approval (to construct DG system)
Company Construction
Witness Test (where applicable)
Completion Document Review and Meter Set
Authorization to Interconnect
httpswwwnationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
19National Grid | July Interconnection Webinar | July 16 2020
Expedited Review Path
Expedited
Eligible Facilities Listed Inverter DG
Acknowledge Receipt of Application(3 days)
Review Application for Completeness10 days
Complete Review of All Screens25 days
Complete Supplemental Review (if needed)20 days or Standard Process
Send Executable Agreement10 days
Total Maximum Days 4565 days
Construction ScheduleVaried
Notice Witness TestWithin 10 days of receiving Certificate of
Completion or by mutual agreement
If any Screens are not passed the
Company may require a Supplemental Review Agreementbefore providing an Interconnection
Service Agreement
Key threshold if aggregate
generation is less than 67 of minimum load on the
feeder Other Screens review voltage quality reliability and safety to reduce the potential
need for Impact Studies
Relay control system must be well
defined to make SupplementalReview easier
20National Grid | July Interconnection Webinar | July 16 2020
Recent Improvements
Infrastructure List View-Can be found at the bottom of the home
page on the portal
Lists of all feeders in each jurisdiction (MA NY RI) that can be
sorted by Feeder Name Substation Transformer Name
Operating District Connected DG kWAC Pending DG kWAC
whether or not the Feeders are Registered with FERC
Link to
guide httpsngusforcecomservletservletFileDownloadfile=
0150W00000FKqNQ
Developers have access in portal to view muni WO for completion
21National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
For most Expedited applications a ldquoCommissioning Memordquo on
a company letterhead is provided in lieu of Witness Test
Commissioning test should consist of the following
1 Two (2) second shutdown when disconnect open test
2 Five (5) minutes before restart when disconnect is closed test
3 Confirm system matches As-built (include most recent revision
date of as built provided)
4 List the inverter relay frequency (Hz) and trip time settings
22National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
As Built Must be PE stamped and signed dated by person
that performed the commissioning test (Signature date
should match date of test)
Pictures Meter picture should show permanent plaque
(visible at eye level) that includes a warning about generator
installed
Pictures If the AC utility disconnect switch is not grouped
with and adjacent to the utility revenue meter then a
permanent plaque (visible at eye level) that clearly identifies
the location of the AC utility disconnect is required
23National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
Evidence of insurance is required for all projects gt 60kW in
MA and gt50kW in RI Refer to the ISA and Interconnection
Tariff for insurance requirements
Qualifying Facility documents
Schedule A (P-Rate) required for all QF projects
W9 (Only for projects gt60kW)
ACH (Only for projects gt60kW)
Supplier Enrollment Form (Only for projects gt60kW)
24National Grid | July Interconnection Webinar | July 16 2020
Metering Reminder
Projects greater than 60kW in MA and greater than 25kW in RI
require interval metering (Wireless or phone line)
Company needs a 4G wireless signal test on a Verizon network in
order to provide wireless metering
Phone lines must be dedicated and terminated at the meter
location Line must be 100 copper Fiber lines will not
communicate properly
These meters are long lead time items and prep time can be 6-8
weeks so it is important to work through this with your job owner
well in advance of when you intend to seek Authority to
Interconnect
Wireless test form httpsngusforcecomsarticleMA-
Interconnection-Documents
Standard Review
ProcessNat Mahattanasakul
05
26National Grid | July Interconnection Webinar | July 16 2020
Standard Criteria
Applies to
Projects that require Distribution System Impact Study (DSIS)
Large-scale DG projects
Generally greater than 500 kW but project specific
DG projects requiring System Modifications at the substation level
Non-listed inverters or generators other than PV
Induction Synchronous Asynchronous
Most CHP systems
All projects that do not qualify for the Simplified or Expedited process
27National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Pre-Application
Application
Standard
Engineering Review
Impact StudyDetailed Study
Conditional Approval (to construct DG system)
Company Construction
Witness Test
Authorization to Interconnect
httpsngusforcecomsarticleMA-Complex-Standard-Application-Process
28National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Standard
Eligible Facilities Any DG
Acknowledge Receipt of Application (3 days)
Review Application for Completeness 10 days
Complete Standard Process Initial Review 20 days
Send Impact Study Agreement 5 days
Complete Impact Study 55-60 days or by mutual agreement depending on complexity
Complete Detailed Study (if needed) 30 ndash 60 days or by mutual agreement depending on complexity
Send Executable Agreement (ISA) 15 days
Total Maximum Days 135160 days (200 days for Standard Complex)
Construction Schedule Varied
Witness Test10 days from the Companyrsquos approval of WT procedures or
by mutual agreement
29National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Impact Study will determine the level of impact on the Companyrsquos EPS and the required System
Modifications
Impact and Detailed Study (if applicable) will determine System Modifications required and cost
(Risk of Islanding)
ISO-NE Generator Notification Process will be required for applications that are greater than 1MW
but less than 5MW (ie PP5-1 or GNF) and a Proposed Plan Application (PPA) along with supporting Transmission System Impact Study (TSIS) will be required for applications 5MW or greater in size single or potentially in aggregate Size of project based on nameplate rating of
system
These requirements will add time to the DG Interconnection Process if there is an ASO hold If so
the DSIS will be placed on hold until the ISO-NE approval or determination is known likely at a point during the DSIS process
Interconnection Service Agreement (ISA) provided after Study completed or an Early ISA could be requested if Detailed Study is required
If substation modifications required Company has 60 BD for Study (MDPU 1320 ndash pg 50) or by mutual agreement if estimated construction cost greater than $1 million
30National Grid | July Interconnection Webinar | July 16 2020
New CEI Structure
Process Improvement
amp Future TopicsWill Kern
06
32National Grid | July Interconnection Webinar | July 16 2020
Process Improvement amp Future Topics
Potential webinar topics
Verizon initiatives
Hosting Capacity Maps
Metering
Mike Porcaro as Ombudsperson
Questions
07
34National Grid | July Interconnection Webinar | July 16 2020
Appendix Summary of Resources Documents amp Links
Distributed Generation Website ndash
httpswww9nationalgriduscommasselectrichomeenergyeffdistributed_gen
erationasp
Interconnection Process Resources ndash
httpswww9nationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
Storage Assistance -
httpsngusforcecomsarticleStorage-Assistance
DPU Interim Guidance for ESS -
httpsngusforcecomsarticleHow-to-Add-Energy-Storage-to-an-In-Progress-Application-in-Massachusetts
| [Insert document title] | [Insert date]
4National Grid
Safety Moment Heat Exhaustion
bull Heat exhaustion symptoms include being pale ashen
or moist muscle cramps fatigue weakness or
dizziness
bull Be cognizant of compounded effects when working in
front of a grill youll get tired much faster than you
normally would based on the weather alone
bull Heat exhaustion can evolve into heat stroke quickly so
monitor symptoms and immediately move victims to
shaded or air-conditioned areas
bull Provide water or other cool nonalcoholic beverages
but dont force it
bull Seek medical attention immediately if body temperature
is above 103 or the individual is unresponsive
| July Interconnection Webinar | July 16 2020
5National Grid
COVID amp Force Majeure
| July Interconnection Webinar | July 16 2020
Payment extensions are no longer applicable
The company is working close to blue sky operations
however we will continue to monitor the situation as it develops
There have been very few Force Majeure impacts to cases which
were managed closely with the impacted developers
Payment due dates are not extended by Force Majeure per Tariff
Updates will continue to be posted
at httpsngusforcecomsarticleMA-Force-Majeure-
Declarations
Energy Storage
SystemsMargaret Campbell
02
7National Grid | July Interconnection Webinar | July 16 2020
New Storage Case Fields
New Application for Generation without Storage
New Application for Generation and Storage
New Application for Stand Alone Energy Storage
Add Storage to Existing Generation
AC-Coupled
DC-Coupled
Separate PCC
Electric Grid Only
Unrestricted Electric Grid or Generation
Restricted Electric Grid or Generation
Generation Only
Electric Grid Only
Unrestricted Electric Grid or Onsite Load
Restricted Electric Grid or Onsite Load
Onsite Load Only
AC Storage are included in the system size when determining if an application is simplified
expedited or standard so Storage AC kW is important to route application correctly
The Storage Charging Capability and Storage Discharging Capability values should match the
note on the one-line indicating how the storage will charge and discharge
8National Grid | July Interconnection Webinar | July 16 2020
Energy Storage System (ESS) Assets
The Inverter Information
This is the inverter for the ESS not the ESS itself
For DC coupled this is often the same inverter as the solar for example a SolarEdge inverter
For AC coupled this can be a separate inverter or the same as the ESS if it is a combined unit for example Powerwall
The ESS Information
Must be completed for AC and DC coupled batteries
The Storage Capacity per Device (kW DC) or (kW AC) is required (often
missed)
The Relay Information
Provides space for inputting ESS operating hours otherwise can be included in
the ESS information as an upload under special guidance
9National Grid | July Interconnection Webinar | July 16 2020
Energy Storage System (ESS) Form
The ESS Form is required and must be filled out electronically on the
portal (cannot be upload only)
Most of the fields on the ESS form are pre-populated from the Storage
case or values already entered on the case
If any of the pre-populated values look incorrect or need to be
updated please update the storage asset or reach to out to CEI
job owner thru Chatter
Link for knowledge page for adding a storage
asset httpsngusforcecomservletservletFileDownloadfile=0150W00000E
oHnv
Link for Storage Assistance httpsngusforcecomsarticleStorage-
Assistance
Simplified Review
ProcessMargaret Campbell
03
11National Grid | July Interconnection Webinar | July 16 2020
Simplified Criteria
UL Listed (1741 SA) inverter-based systems with power ratings of
15kW or less on a single phase service on a radial feed
UL Listed (1741 SA) inverter-based systems with power ratings of
25kW or less on a three phase service on a radial feed
The Simplified process does not apply for
Non-listed inverters or other generators (induction synchronous
asynchronous)
Aggregate generation capacity of listed inverters that exceed the
above-mentioned limits
Project that did not pass the Simplified process Screens
12National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Application
Simplified
Conditional Approval (to construct DG system)
Witness Test (completion package)
Authorization to Interconnect
httpswwwnationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
13National Grid | July Interconnection Webinar | July 16 2020
Simplified Review Path
Simplified Process
Eligible Facilities Listed Small Inverter
Acknowledge Receipt of Application (3 days)
Review Application for Completeness 10 days
Complete Review of All Screens 15-20 days
Complete Supplemental Review (if needed) NA
Complete Standard Process Initial Review NA
Send Follow-on Studies CostAgreement NA
Complete Impact Study (if needed) NA
Complete Detailed Study (if needed) NA
Send Executable Agreement Done The agreement is part of the application
Total Maximum Days 25 days (30 in the case of failure of Screen 5)
Construction Schedule Varied
Witness Test Within 10 days from receipt of the Certificate of Completion or by mutual agreement
14National Grid | July Interconnection Webinar | July 16 2020
Common Holds or Concerns
Application
The application must match the customerrsquos account name address
account number and meter number
Wait to construct the system until after Conditional Approval is issued
After Conditional Approval
Complete the Service Upgrade Form so the work request can be
created and provided to the wire inspector at the before the inspection
Completion Package
Have Wire Inspection called in before submitting Completion
Documents
15National Grid | July Interconnection Webinar | July 16 2020
Recent Portal Improvements
Expedited Review
ProcessMike Armell
04
17National Grid | July Interconnection Webinar | July 16 2020
Expedited Criteria
Single phase customers with listed single-phase inverter based
systems with power ratings of gt15 kW on a radial feed
Three phase customers with listed three-phase inverter based
systems with power ratings of gt25kW on a radial feed
Any project that did not pass the Simplified process Screens
Non-Simplified projects that do not require an Impact Study
Maximum size supplemental review is based on review of
Screens
18National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Pre-Application (if 500 kW or greater)
Application
Expedited
Engineering Review
Supplemental Review
Conditional Approval (to construct DG system)
Company Construction
Witness Test (where applicable)
Completion Document Review and Meter Set
Authorization to Interconnect
httpswwwnationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
19National Grid | July Interconnection Webinar | July 16 2020
Expedited Review Path
Expedited
Eligible Facilities Listed Inverter DG
Acknowledge Receipt of Application(3 days)
Review Application for Completeness10 days
Complete Review of All Screens25 days
Complete Supplemental Review (if needed)20 days or Standard Process
Send Executable Agreement10 days
Total Maximum Days 4565 days
Construction ScheduleVaried
Notice Witness TestWithin 10 days of receiving Certificate of
Completion or by mutual agreement
If any Screens are not passed the
Company may require a Supplemental Review Agreementbefore providing an Interconnection
Service Agreement
Key threshold if aggregate
generation is less than 67 of minimum load on the
feeder Other Screens review voltage quality reliability and safety to reduce the potential
need for Impact Studies
Relay control system must be well
defined to make SupplementalReview easier
20National Grid | July Interconnection Webinar | July 16 2020
Recent Improvements
Infrastructure List View-Can be found at the bottom of the home
page on the portal
Lists of all feeders in each jurisdiction (MA NY RI) that can be
sorted by Feeder Name Substation Transformer Name
Operating District Connected DG kWAC Pending DG kWAC
whether or not the Feeders are Registered with FERC
Link to
guide httpsngusforcecomservletservletFileDownloadfile=
0150W00000FKqNQ
Developers have access in portal to view muni WO for completion
21National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
For most Expedited applications a ldquoCommissioning Memordquo on
a company letterhead is provided in lieu of Witness Test
Commissioning test should consist of the following
1 Two (2) second shutdown when disconnect open test
2 Five (5) minutes before restart when disconnect is closed test
3 Confirm system matches As-built (include most recent revision
date of as built provided)
4 List the inverter relay frequency (Hz) and trip time settings
22National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
As Built Must be PE stamped and signed dated by person
that performed the commissioning test (Signature date
should match date of test)
Pictures Meter picture should show permanent plaque
(visible at eye level) that includes a warning about generator
installed
Pictures If the AC utility disconnect switch is not grouped
with and adjacent to the utility revenue meter then a
permanent plaque (visible at eye level) that clearly identifies
the location of the AC utility disconnect is required
23National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
Evidence of insurance is required for all projects gt 60kW in
MA and gt50kW in RI Refer to the ISA and Interconnection
Tariff for insurance requirements
Qualifying Facility documents
Schedule A (P-Rate) required for all QF projects
W9 (Only for projects gt60kW)
ACH (Only for projects gt60kW)
Supplier Enrollment Form (Only for projects gt60kW)
24National Grid | July Interconnection Webinar | July 16 2020
Metering Reminder
Projects greater than 60kW in MA and greater than 25kW in RI
require interval metering (Wireless or phone line)
Company needs a 4G wireless signal test on a Verizon network in
order to provide wireless metering
Phone lines must be dedicated and terminated at the meter
location Line must be 100 copper Fiber lines will not
communicate properly
These meters are long lead time items and prep time can be 6-8
weeks so it is important to work through this with your job owner
well in advance of when you intend to seek Authority to
Interconnect
Wireless test form httpsngusforcecomsarticleMA-
Interconnection-Documents
Standard Review
ProcessNat Mahattanasakul
05
26National Grid | July Interconnection Webinar | July 16 2020
Standard Criteria
Applies to
Projects that require Distribution System Impact Study (DSIS)
Large-scale DG projects
Generally greater than 500 kW but project specific
DG projects requiring System Modifications at the substation level
Non-listed inverters or generators other than PV
Induction Synchronous Asynchronous
Most CHP systems
All projects that do not qualify for the Simplified or Expedited process
27National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Pre-Application
Application
Standard
Engineering Review
Impact StudyDetailed Study
Conditional Approval (to construct DG system)
Company Construction
Witness Test
Authorization to Interconnect
httpsngusforcecomsarticleMA-Complex-Standard-Application-Process
28National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Standard
Eligible Facilities Any DG
Acknowledge Receipt of Application (3 days)
Review Application for Completeness 10 days
Complete Standard Process Initial Review 20 days
Send Impact Study Agreement 5 days
Complete Impact Study 55-60 days or by mutual agreement depending on complexity
Complete Detailed Study (if needed) 30 ndash 60 days or by mutual agreement depending on complexity
Send Executable Agreement (ISA) 15 days
Total Maximum Days 135160 days (200 days for Standard Complex)
Construction Schedule Varied
Witness Test10 days from the Companyrsquos approval of WT procedures or
by mutual agreement
29National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Impact Study will determine the level of impact on the Companyrsquos EPS and the required System
Modifications
Impact and Detailed Study (if applicable) will determine System Modifications required and cost
(Risk of Islanding)
ISO-NE Generator Notification Process will be required for applications that are greater than 1MW
but less than 5MW (ie PP5-1 or GNF) and a Proposed Plan Application (PPA) along with supporting Transmission System Impact Study (TSIS) will be required for applications 5MW or greater in size single or potentially in aggregate Size of project based on nameplate rating of
system
These requirements will add time to the DG Interconnection Process if there is an ASO hold If so
the DSIS will be placed on hold until the ISO-NE approval or determination is known likely at a point during the DSIS process
Interconnection Service Agreement (ISA) provided after Study completed or an Early ISA could be requested if Detailed Study is required
If substation modifications required Company has 60 BD for Study (MDPU 1320 ndash pg 50) or by mutual agreement if estimated construction cost greater than $1 million
30National Grid | July Interconnection Webinar | July 16 2020
New CEI Structure
Process Improvement
amp Future TopicsWill Kern
06
32National Grid | July Interconnection Webinar | July 16 2020
Process Improvement amp Future Topics
Potential webinar topics
Verizon initiatives
Hosting Capacity Maps
Metering
Mike Porcaro as Ombudsperson
Questions
07
34National Grid | July Interconnection Webinar | July 16 2020
Appendix Summary of Resources Documents amp Links
Distributed Generation Website ndash
httpswww9nationalgriduscommasselectrichomeenergyeffdistributed_gen
erationasp
Interconnection Process Resources ndash
httpswww9nationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
Storage Assistance -
httpsngusforcecomsarticleStorage-Assistance
DPU Interim Guidance for ESS -
httpsngusforcecomsarticleHow-to-Add-Energy-Storage-to-an-In-Progress-Application-in-Massachusetts
| [Insert document title] | [Insert date]
5National Grid
COVID amp Force Majeure
| July Interconnection Webinar | July 16 2020
Payment extensions are no longer applicable
The company is working close to blue sky operations
however we will continue to monitor the situation as it develops
There have been very few Force Majeure impacts to cases which
were managed closely with the impacted developers
Payment due dates are not extended by Force Majeure per Tariff
Updates will continue to be posted
at httpsngusforcecomsarticleMA-Force-Majeure-
Declarations
Energy Storage
SystemsMargaret Campbell
02
7National Grid | July Interconnection Webinar | July 16 2020
New Storage Case Fields
New Application for Generation without Storage
New Application for Generation and Storage
New Application for Stand Alone Energy Storage
Add Storage to Existing Generation
AC-Coupled
DC-Coupled
Separate PCC
Electric Grid Only
Unrestricted Electric Grid or Generation
Restricted Electric Grid or Generation
Generation Only
Electric Grid Only
Unrestricted Electric Grid or Onsite Load
Restricted Electric Grid or Onsite Load
Onsite Load Only
AC Storage are included in the system size when determining if an application is simplified
expedited or standard so Storage AC kW is important to route application correctly
The Storage Charging Capability and Storage Discharging Capability values should match the
note on the one-line indicating how the storage will charge and discharge
8National Grid | July Interconnection Webinar | July 16 2020
Energy Storage System (ESS) Assets
The Inverter Information
This is the inverter for the ESS not the ESS itself
For DC coupled this is often the same inverter as the solar for example a SolarEdge inverter
For AC coupled this can be a separate inverter or the same as the ESS if it is a combined unit for example Powerwall
The ESS Information
Must be completed for AC and DC coupled batteries
The Storage Capacity per Device (kW DC) or (kW AC) is required (often
missed)
The Relay Information
Provides space for inputting ESS operating hours otherwise can be included in
the ESS information as an upload under special guidance
9National Grid | July Interconnection Webinar | July 16 2020
Energy Storage System (ESS) Form
The ESS Form is required and must be filled out electronically on the
portal (cannot be upload only)
Most of the fields on the ESS form are pre-populated from the Storage
case or values already entered on the case
If any of the pre-populated values look incorrect or need to be
updated please update the storage asset or reach to out to CEI
job owner thru Chatter
Link for knowledge page for adding a storage
asset httpsngusforcecomservletservletFileDownloadfile=0150W00000E
oHnv
Link for Storage Assistance httpsngusforcecomsarticleStorage-
Assistance
Simplified Review
ProcessMargaret Campbell
03
11National Grid | July Interconnection Webinar | July 16 2020
Simplified Criteria
UL Listed (1741 SA) inverter-based systems with power ratings of
15kW or less on a single phase service on a radial feed
UL Listed (1741 SA) inverter-based systems with power ratings of
25kW or less on a three phase service on a radial feed
The Simplified process does not apply for
Non-listed inverters or other generators (induction synchronous
asynchronous)
Aggregate generation capacity of listed inverters that exceed the
above-mentioned limits
Project that did not pass the Simplified process Screens
12National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Application
Simplified
Conditional Approval (to construct DG system)
Witness Test (completion package)
Authorization to Interconnect
httpswwwnationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
13National Grid | July Interconnection Webinar | July 16 2020
Simplified Review Path
Simplified Process
Eligible Facilities Listed Small Inverter
Acknowledge Receipt of Application (3 days)
Review Application for Completeness 10 days
Complete Review of All Screens 15-20 days
Complete Supplemental Review (if needed) NA
Complete Standard Process Initial Review NA
Send Follow-on Studies CostAgreement NA
Complete Impact Study (if needed) NA
Complete Detailed Study (if needed) NA
Send Executable Agreement Done The agreement is part of the application
Total Maximum Days 25 days (30 in the case of failure of Screen 5)
Construction Schedule Varied
Witness Test Within 10 days from receipt of the Certificate of Completion or by mutual agreement
14National Grid | July Interconnection Webinar | July 16 2020
Common Holds or Concerns
Application
The application must match the customerrsquos account name address
account number and meter number
Wait to construct the system until after Conditional Approval is issued
After Conditional Approval
Complete the Service Upgrade Form so the work request can be
created and provided to the wire inspector at the before the inspection
Completion Package
Have Wire Inspection called in before submitting Completion
Documents
15National Grid | July Interconnection Webinar | July 16 2020
Recent Portal Improvements
Expedited Review
ProcessMike Armell
04
17National Grid | July Interconnection Webinar | July 16 2020
Expedited Criteria
Single phase customers with listed single-phase inverter based
systems with power ratings of gt15 kW on a radial feed
Three phase customers with listed three-phase inverter based
systems with power ratings of gt25kW on a radial feed
Any project that did not pass the Simplified process Screens
Non-Simplified projects that do not require an Impact Study
Maximum size supplemental review is based on review of
Screens
18National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Pre-Application (if 500 kW or greater)
Application
Expedited
Engineering Review
Supplemental Review
Conditional Approval (to construct DG system)
Company Construction
Witness Test (where applicable)
Completion Document Review and Meter Set
Authorization to Interconnect
httpswwwnationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
19National Grid | July Interconnection Webinar | July 16 2020
Expedited Review Path
Expedited
Eligible Facilities Listed Inverter DG
Acknowledge Receipt of Application(3 days)
Review Application for Completeness10 days
Complete Review of All Screens25 days
Complete Supplemental Review (if needed)20 days or Standard Process
Send Executable Agreement10 days
Total Maximum Days 4565 days
Construction ScheduleVaried
Notice Witness TestWithin 10 days of receiving Certificate of
Completion or by mutual agreement
If any Screens are not passed the
Company may require a Supplemental Review Agreementbefore providing an Interconnection
Service Agreement
Key threshold if aggregate
generation is less than 67 of minimum load on the
feeder Other Screens review voltage quality reliability and safety to reduce the potential
need for Impact Studies
Relay control system must be well
defined to make SupplementalReview easier
20National Grid | July Interconnection Webinar | July 16 2020
Recent Improvements
Infrastructure List View-Can be found at the bottom of the home
page on the portal
Lists of all feeders in each jurisdiction (MA NY RI) that can be
sorted by Feeder Name Substation Transformer Name
Operating District Connected DG kWAC Pending DG kWAC
whether or not the Feeders are Registered with FERC
Link to
guide httpsngusforcecomservletservletFileDownloadfile=
0150W00000FKqNQ
Developers have access in portal to view muni WO for completion
21National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
For most Expedited applications a ldquoCommissioning Memordquo on
a company letterhead is provided in lieu of Witness Test
Commissioning test should consist of the following
1 Two (2) second shutdown when disconnect open test
2 Five (5) minutes before restart when disconnect is closed test
3 Confirm system matches As-built (include most recent revision
date of as built provided)
4 List the inverter relay frequency (Hz) and trip time settings
22National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
As Built Must be PE stamped and signed dated by person
that performed the commissioning test (Signature date
should match date of test)
Pictures Meter picture should show permanent plaque
(visible at eye level) that includes a warning about generator
installed
Pictures If the AC utility disconnect switch is not grouped
with and adjacent to the utility revenue meter then a
permanent plaque (visible at eye level) that clearly identifies
the location of the AC utility disconnect is required
23National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
Evidence of insurance is required for all projects gt 60kW in
MA and gt50kW in RI Refer to the ISA and Interconnection
Tariff for insurance requirements
Qualifying Facility documents
Schedule A (P-Rate) required for all QF projects
W9 (Only for projects gt60kW)
ACH (Only for projects gt60kW)
Supplier Enrollment Form (Only for projects gt60kW)
24National Grid | July Interconnection Webinar | July 16 2020
Metering Reminder
Projects greater than 60kW in MA and greater than 25kW in RI
require interval metering (Wireless or phone line)
Company needs a 4G wireless signal test on a Verizon network in
order to provide wireless metering
Phone lines must be dedicated and terminated at the meter
location Line must be 100 copper Fiber lines will not
communicate properly
These meters are long lead time items and prep time can be 6-8
weeks so it is important to work through this with your job owner
well in advance of when you intend to seek Authority to
Interconnect
Wireless test form httpsngusforcecomsarticleMA-
Interconnection-Documents
Standard Review
ProcessNat Mahattanasakul
05
26National Grid | July Interconnection Webinar | July 16 2020
Standard Criteria
Applies to
Projects that require Distribution System Impact Study (DSIS)
Large-scale DG projects
Generally greater than 500 kW but project specific
DG projects requiring System Modifications at the substation level
Non-listed inverters or generators other than PV
Induction Synchronous Asynchronous
Most CHP systems
All projects that do not qualify for the Simplified or Expedited process
27National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Pre-Application
Application
Standard
Engineering Review
Impact StudyDetailed Study
Conditional Approval (to construct DG system)
Company Construction
Witness Test
Authorization to Interconnect
httpsngusforcecomsarticleMA-Complex-Standard-Application-Process
28National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Standard
Eligible Facilities Any DG
Acknowledge Receipt of Application (3 days)
Review Application for Completeness 10 days
Complete Standard Process Initial Review 20 days
Send Impact Study Agreement 5 days
Complete Impact Study 55-60 days or by mutual agreement depending on complexity
Complete Detailed Study (if needed) 30 ndash 60 days or by mutual agreement depending on complexity
Send Executable Agreement (ISA) 15 days
Total Maximum Days 135160 days (200 days for Standard Complex)
Construction Schedule Varied
Witness Test10 days from the Companyrsquos approval of WT procedures or
by mutual agreement
29National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Impact Study will determine the level of impact on the Companyrsquos EPS and the required System
Modifications
Impact and Detailed Study (if applicable) will determine System Modifications required and cost
(Risk of Islanding)
ISO-NE Generator Notification Process will be required for applications that are greater than 1MW
but less than 5MW (ie PP5-1 or GNF) and a Proposed Plan Application (PPA) along with supporting Transmission System Impact Study (TSIS) will be required for applications 5MW or greater in size single or potentially in aggregate Size of project based on nameplate rating of
system
These requirements will add time to the DG Interconnection Process if there is an ASO hold If so
the DSIS will be placed on hold until the ISO-NE approval or determination is known likely at a point during the DSIS process
Interconnection Service Agreement (ISA) provided after Study completed or an Early ISA could be requested if Detailed Study is required
If substation modifications required Company has 60 BD for Study (MDPU 1320 ndash pg 50) or by mutual agreement if estimated construction cost greater than $1 million
30National Grid | July Interconnection Webinar | July 16 2020
New CEI Structure
Process Improvement
amp Future TopicsWill Kern
06
32National Grid | July Interconnection Webinar | July 16 2020
Process Improvement amp Future Topics
Potential webinar topics
Verizon initiatives
Hosting Capacity Maps
Metering
Mike Porcaro as Ombudsperson
Questions
07
34National Grid | July Interconnection Webinar | July 16 2020
Appendix Summary of Resources Documents amp Links
Distributed Generation Website ndash
httpswww9nationalgriduscommasselectrichomeenergyeffdistributed_gen
erationasp
Interconnection Process Resources ndash
httpswww9nationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
Storage Assistance -
httpsngusforcecomsarticleStorage-Assistance
DPU Interim Guidance for ESS -
httpsngusforcecomsarticleHow-to-Add-Energy-Storage-to-an-In-Progress-Application-in-Massachusetts
| [Insert document title] | [Insert date]
Energy Storage
SystemsMargaret Campbell
02
7National Grid | July Interconnection Webinar | July 16 2020
New Storage Case Fields
New Application for Generation without Storage
New Application for Generation and Storage
New Application for Stand Alone Energy Storage
Add Storage to Existing Generation
AC-Coupled
DC-Coupled
Separate PCC
Electric Grid Only
Unrestricted Electric Grid or Generation
Restricted Electric Grid or Generation
Generation Only
Electric Grid Only
Unrestricted Electric Grid or Onsite Load
Restricted Electric Grid or Onsite Load
Onsite Load Only
AC Storage are included in the system size when determining if an application is simplified
expedited or standard so Storage AC kW is important to route application correctly
The Storage Charging Capability and Storage Discharging Capability values should match the
note on the one-line indicating how the storage will charge and discharge
8National Grid | July Interconnection Webinar | July 16 2020
Energy Storage System (ESS) Assets
The Inverter Information
This is the inverter for the ESS not the ESS itself
For DC coupled this is often the same inverter as the solar for example a SolarEdge inverter
For AC coupled this can be a separate inverter or the same as the ESS if it is a combined unit for example Powerwall
The ESS Information
Must be completed for AC and DC coupled batteries
The Storage Capacity per Device (kW DC) or (kW AC) is required (often
missed)
The Relay Information
Provides space for inputting ESS operating hours otherwise can be included in
the ESS information as an upload under special guidance
9National Grid | July Interconnection Webinar | July 16 2020
Energy Storage System (ESS) Form
The ESS Form is required and must be filled out electronically on the
portal (cannot be upload only)
Most of the fields on the ESS form are pre-populated from the Storage
case or values already entered on the case
If any of the pre-populated values look incorrect or need to be
updated please update the storage asset or reach to out to CEI
job owner thru Chatter
Link for knowledge page for adding a storage
asset httpsngusforcecomservletservletFileDownloadfile=0150W00000E
oHnv
Link for Storage Assistance httpsngusforcecomsarticleStorage-
Assistance
Simplified Review
ProcessMargaret Campbell
03
11National Grid | July Interconnection Webinar | July 16 2020
Simplified Criteria
UL Listed (1741 SA) inverter-based systems with power ratings of
15kW or less on a single phase service on a radial feed
UL Listed (1741 SA) inverter-based systems with power ratings of
25kW or less on a three phase service on a radial feed
The Simplified process does not apply for
Non-listed inverters or other generators (induction synchronous
asynchronous)
Aggregate generation capacity of listed inverters that exceed the
above-mentioned limits
Project that did not pass the Simplified process Screens
12National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Application
Simplified
Conditional Approval (to construct DG system)
Witness Test (completion package)
Authorization to Interconnect
httpswwwnationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
13National Grid | July Interconnection Webinar | July 16 2020
Simplified Review Path
Simplified Process
Eligible Facilities Listed Small Inverter
Acknowledge Receipt of Application (3 days)
Review Application for Completeness 10 days
Complete Review of All Screens 15-20 days
Complete Supplemental Review (if needed) NA
Complete Standard Process Initial Review NA
Send Follow-on Studies CostAgreement NA
Complete Impact Study (if needed) NA
Complete Detailed Study (if needed) NA
Send Executable Agreement Done The agreement is part of the application
Total Maximum Days 25 days (30 in the case of failure of Screen 5)
Construction Schedule Varied
Witness Test Within 10 days from receipt of the Certificate of Completion or by mutual agreement
14National Grid | July Interconnection Webinar | July 16 2020
Common Holds or Concerns
Application
The application must match the customerrsquos account name address
account number and meter number
Wait to construct the system until after Conditional Approval is issued
After Conditional Approval
Complete the Service Upgrade Form so the work request can be
created and provided to the wire inspector at the before the inspection
Completion Package
Have Wire Inspection called in before submitting Completion
Documents
15National Grid | July Interconnection Webinar | July 16 2020
Recent Portal Improvements
Expedited Review
ProcessMike Armell
04
17National Grid | July Interconnection Webinar | July 16 2020
Expedited Criteria
Single phase customers with listed single-phase inverter based
systems with power ratings of gt15 kW on a radial feed
Three phase customers with listed three-phase inverter based
systems with power ratings of gt25kW on a radial feed
Any project that did not pass the Simplified process Screens
Non-Simplified projects that do not require an Impact Study
Maximum size supplemental review is based on review of
Screens
18National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Pre-Application (if 500 kW or greater)
Application
Expedited
Engineering Review
Supplemental Review
Conditional Approval (to construct DG system)
Company Construction
Witness Test (where applicable)
Completion Document Review and Meter Set
Authorization to Interconnect
httpswwwnationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
19National Grid | July Interconnection Webinar | July 16 2020
Expedited Review Path
Expedited
Eligible Facilities Listed Inverter DG
Acknowledge Receipt of Application(3 days)
Review Application for Completeness10 days
Complete Review of All Screens25 days
Complete Supplemental Review (if needed)20 days or Standard Process
Send Executable Agreement10 days
Total Maximum Days 4565 days
Construction ScheduleVaried
Notice Witness TestWithin 10 days of receiving Certificate of
Completion or by mutual agreement
If any Screens are not passed the
Company may require a Supplemental Review Agreementbefore providing an Interconnection
Service Agreement
Key threshold if aggregate
generation is less than 67 of minimum load on the
feeder Other Screens review voltage quality reliability and safety to reduce the potential
need for Impact Studies
Relay control system must be well
defined to make SupplementalReview easier
20National Grid | July Interconnection Webinar | July 16 2020
Recent Improvements
Infrastructure List View-Can be found at the bottom of the home
page on the portal
Lists of all feeders in each jurisdiction (MA NY RI) that can be
sorted by Feeder Name Substation Transformer Name
Operating District Connected DG kWAC Pending DG kWAC
whether or not the Feeders are Registered with FERC
Link to
guide httpsngusforcecomservletservletFileDownloadfile=
0150W00000FKqNQ
Developers have access in portal to view muni WO for completion
21National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
For most Expedited applications a ldquoCommissioning Memordquo on
a company letterhead is provided in lieu of Witness Test
Commissioning test should consist of the following
1 Two (2) second shutdown when disconnect open test
2 Five (5) minutes before restart when disconnect is closed test
3 Confirm system matches As-built (include most recent revision
date of as built provided)
4 List the inverter relay frequency (Hz) and trip time settings
22National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
As Built Must be PE stamped and signed dated by person
that performed the commissioning test (Signature date
should match date of test)
Pictures Meter picture should show permanent plaque
(visible at eye level) that includes a warning about generator
installed
Pictures If the AC utility disconnect switch is not grouped
with and adjacent to the utility revenue meter then a
permanent plaque (visible at eye level) that clearly identifies
the location of the AC utility disconnect is required
23National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
Evidence of insurance is required for all projects gt 60kW in
MA and gt50kW in RI Refer to the ISA and Interconnection
Tariff for insurance requirements
Qualifying Facility documents
Schedule A (P-Rate) required for all QF projects
W9 (Only for projects gt60kW)
ACH (Only for projects gt60kW)
Supplier Enrollment Form (Only for projects gt60kW)
24National Grid | July Interconnection Webinar | July 16 2020
Metering Reminder
Projects greater than 60kW in MA and greater than 25kW in RI
require interval metering (Wireless or phone line)
Company needs a 4G wireless signal test on a Verizon network in
order to provide wireless metering
Phone lines must be dedicated and terminated at the meter
location Line must be 100 copper Fiber lines will not
communicate properly
These meters are long lead time items and prep time can be 6-8
weeks so it is important to work through this with your job owner
well in advance of when you intend to seek Authority to
Interconnect
Wireless test form httpsngusforcecomsarticleMA-
Interconnection-Documents
Standard Review
ProcessNat Mahattanasakul
05
26National Grid | July Interconnection Webinar | July 16 2020
Standard Criteria
Applies to
Projects that require Distribution System Impact Study (DSIS)
Large-scale DG projects
Generally greater than 500 kW but project specific
DG projects requiring System Modifications at the substation level
Non-listed inverters or generators other than PV
Induction Synchronous Asynchronous
Most CHP systems
All projects that do not qualify for the Simplified or Expedited process
27National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Pre-Application
Application
Standard
Engineering Review
Impact StudyDetailed Study
Conditional Approval (to construct DG system)
Company Construction
Witness Test
Authorization to Interconnect
httpsngusforcecomsarticleMA-Complex-Standard-Application-Process
28National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Standard
Eligible Facilities Any DG
Acknowledge Receipt of Application (3 days)
Review Application for Completeness 10 days
Complete Standard Process Initial Review 20 days
Send Impact Study Agreement 5 days
Complete Impact Study 55-60 days or by mutual agreement depending on complexity
Complete Detailed Study (if needed) 30 ndash 60 days or by mutual agreement depending on complexity
Send Executable Agreement (ISA) 15 days
Total Maximum Days 135160 days (200 days for Standard Complex)
Construction Schedule Varied
Witness Test10 days from the Companyrsquos approval of WT procedures or
by mutual agreement
29National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Impact Study will determine the level of impact on the Companyrsquos EPS and the required System
Modifications
Impact and Detailed Study (if applicable) will determine System Modifications required and cost
(Risk of Islanding)
ISO-NE Generator Notification Process will be required for applications that are greater than 1MW
but less than 5MW (ie PP5-1 or GNF) and a Proposed Plan Application (PPA) along with supporting Transmission System Impact Study (TSIS) will be required for applications 5MW or greater in size single or potentially in aggregate Size of project based on nameplate rating of
system
These requirements will add time to the DG Interconnection Process if there is an ASO hold If so
the DSIS will be placed on hold until the ISO-NE approval or determination is known likely at a point during the DSIS process
Interconnection Service Agreement (ISA) provided after Study completed or an Early ISA could be requested if Detailed Study is required
If substation modifications required Company has 60 BD for Study (MDPU 1320 ndash pg 50) or by mutual agreement if estimated construction cost greater than $1 million
30National Grid | July Interconnection Webinar | July 16 2020
New CEI Structure
Process Improvement
amp Future TopicsWill Kern
06
32National Grid | July Interconnection Webinar | July 16 2020
Process Improvement amp Future Topics
Potential webinar topics
Verizon initiatives
Hosting Capacity Maps
Metering
Mike Porcaro as Ombudsperson
Questions
07
34National Grid | July Interconnection Webinar | July 16 2020
Appendix Summary of Resources Documents amp Links
Distributed Generation Website ndash
httpswww9nationalgriduscommasselectrichomeenergyeffdistributed_gen
erationasp
Interconnection Process Resources ndash
httpswww9nationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
Storage Assistance -
httpsngusforcecomsarticleStorage-Assistance
DPU Interim Guidance for ESS -
httpsngusforcecomsarticleHow-to-Add-Energy-Storage-to-an-In-Progress-Application-in-Massachusetts
| [Insert document title] | [Insert date]
7National Grid | July Interconnection Webinar | July 16 2020
New Storage Case Fields
New Application for Generation without Storage
New Application for Generation and Storage
New Application for Stand Alone Energy Storage
Add Storage to Existing Generation
AC-Coupled
DC-Coupled
Separate PCC
Electric Grid Only
Unrestricted Electric Grid or Generation
Restricted Electric Grid or Generation
Generation Only
Electric Grid Only
Unrestricted Electric Grid or Onsite Load
Restricted Electric Grid or Onsite Load
Onsite Load Only
AC Storage are included in the system size when determining if an application is simplified
expedited or standard so Storage AC kW is important to route application correctly
The Storage Charging Capability and Storage Discharging Capability values should match the
note on the one-line indicating how the storage will charge and discharge
8National Grid | July Interconnection Webinar | July 16 2020
Energy Storage System (ESS) Assets
The Inverter Information
This is the inverter for the ESS not the ESS itself
For DC coupled this is often the same inverter as the solar for example a SolarEdge inverter
For AC coupled this can be a separate inverter or the same as the ESS if it is a combined unit for example Powerwall
The ESS Information
Must be completed for AC and DC coupled batteries
The Storage Capacity per Device (kW DC) or (kW AC) is required (often
missed)
The Relay Information
Provides space for inputting ESS operating hours otherwise can be included in
the ESS information as an upload under special guidance
9National Grid | July Interconnection Webinar | July 16 2020
Energy Storage System (ESS) Form
The ESS Form is required and must be filled out electronically on the
portal (cannot be upload only)
Most of the fields on the ESS form are pre-populated from the Storage
case or values already entered on the case
If any of the pre-populated values look incorrect or need to be
updated please update the storage asset or reach to out to CEI
job owner thru Chatter
Link for knowledge page for adding a storage
asset httpsngusforcecomservletservletFileDownloadfile=0150W00000E
oHnv
Link for Storage Assistance httpsngusforcecomsarticleStorage-
Assistance
Simplified Review
ProcessMargaret Campbell
03
11National Grid | July Interconnection Webinar | July 16 2020
Simplified Criteria
UL Listed (1741 SA) inverter-based systems with power ratings of
15kW or less on a single phase service on a radial feed
UL Listed (1741 SA) inverter-based systems with power ratings of
25kW or less on a three phase service on a radial feed
The Simplified process does not apply for
Non-listed inverters or other generators (induction synchronous
asynchronous)
Aggregate generation capacity of listed inverters that exceed the
above-mentioned limits
Project that did not pass the Simplified process Screens
12National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Application
Simplified
Conditional Approval (to construct DG system)
Witness Test (completion package)
Authorization to Interconnect
httpswwwnationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
13National Grid | July Interconnection Webinar | July 16 2020
Simplified Review Path
Simplified Process
Eligible Facilities Listed Small Inverter
Acknowledge Receipt of Application (3 days)
Review Application for Completeness 10 days
Complete Review of All Screens 15-20 days
Complete Supplemental Review (if needed) NA
Complete Standard Process Initial Review NA
Send Follow-on Studies CostAgreement NA
Complete Impact Study (if needed) NA
Complete Detailed Study (if needed) NA
Send Executable Agreement Done The agreement is part of the application
Total Maximum Days 25 days (30 in the case of failure of Screen 5)
Construction Schedule Varied
Witness Test Within 10 days from receipt of the Certificate of Completion or by mutual agreement
14National Grid | July Interconnection Webinar | July 16 2020
Common Holds or Concerns
Application
The application must match the customerrsquos account name address
account number and meter number
Wait to construct the system until after Conditional Approval is issued
After Conditional Approval
Complete the Service Upgrade Form so the work request can be
created and provided to the wire inspector at the before the inspection
Completion Package
Have Wire Inspection called in before submitting Completion
Documents
15National Grid | July Interconnection Webinar | July 16 2020
Recent Portal Improvements
Expedited Review
ProcessMike Armell
04
17National Grid | July Interconnection Webinar | July 16 2020
Expedited Criteria
Single phase customers with listed single-phase inverter based
systems with power ratings of gt15 kW on a radial feed
Three phase customers with listed three-phase inverter based
systems with power ratings of gt25kW on a radial feed
Any project that did not pass the Simplified process Screens
Non-Simplified projects that do not require an Impact Study
Maximum size supplemental review is based on review of
Screens
18National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Pre-Application (if 500 kW or greater)
Application
Expedited
Engineering Review
Supplemental Review
Conditional Approval (to construct DG system)
Company Construction
Witness Test (where applicable)
Completion Document Review and Meter Set
Authorization to Interconnect
httpswwwnationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
19National Grid | July Interconnection Webinar | July 16 2020
Expedited Review Path
Expedited
Eligible Facilities Listed Inverter DG
Acknowledge Receipt of Application(3 days)
Review Application for Completeness10 days
Complete Review of All Screens25 days
Complete Supplemental Review (if needed)20 days or Standard Process
Send Executable Agreement10 days
Total Maximum Days 4565 days
Construction ScheduleVaried
Notice Witness TestWithin 10 days of receiving Certificate of
Completion or by mutual agreement
If any Screens are not passed the
Company may require a Supplemental Review Agreementbefore providing an Interconnection
Service Agreement
Key threshold if aggregate
generation is less than 67 of minimum load on the
feeder Other Screens review voltage quality reliability and safety to reduce the potential
need for Impact Studies
Relay control system must be well
defined to make SupplementalReview easier
20National Grid | July Interconnection Webinar | July 16 2020
Recent Improvements
Infrastructure List View-Can be found at the bottom of the home
page on the portal
Lists of all feeders in each jurisdiction (MA NY RI) that can be
sorted by Feeder Name Substation Transformer Name
Operating District Connected DG kWAC Pending DG kWAC
whether or not the Feeders are Registered with FERC
Link to
guide httpsngusforcecomservletservletFileDownloadfile=
0150W00000FKqNQ
Developers have access in portal to view muni WO for completion
21National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
For most Expedited applications a ldquoCommissioning Memordquo on
a company letterhead is provided in lieu of Witness Test
Commissioning test should consist of the following
1 Two (2) second shutdown when disconnect open test
2 Five (5) minutes before restart when disconnect is closed test
3 Confirm system matches As-built (include most recent revision
date of as built provided)
4 List the inverter relay frequency (Hz) and trip time settings
22National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
As Built Must be PE stamped and signed dated by person
that performed the commissioning test (Signature date
should match date of test)
Pictures Meter picture should show permanent plaque
(visible at eye level) that includes a warning about generator
installed
Pictures If the AC utility disconnect switch is not grouped
with and adjacent to the utility revenue meter then a
permanent plaque (visible at eye level) that clearly identifies
the location of the AC utility disconnect is required
23National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
Evidence of insurance is required for all projects gt 60kW in
MA and gt50kW in RI Refer to the ISA and Interconnection
Tariff for insurance requirements
Qualifying Facility documents
Schedule A (P-Rate) required for all QF projects
W9 (Only for projects gt60kW)
ACH (Only for projects gt60kW)
Supplier Enrollment Form (Only for projects gt60kW)
24National Grid | July Interconnection Webinar | July 16 2020
Metering Reminder
Projects greater than 60kW in MA and greater than 25kW in RI
require interval metering (Wireless or phone line)
Company needs a 4G wireless signal test on a Verizon network in
order to provide wireless metering
Phone lines must be dedicated and terminated at the meter
location Line must be 100 copper Fiber lines will not
communicate properly
These meters are long lead time items and prep time can be 6-8
weeks so it is important to work through this with your job owner
well in advance of when you intend to seek Authority to
Interconnect
Wireless test form httpsngusforcecomsarticleMA-
Interconnection-Documents
Standard Review
ProcessNat Mahattanasakul
05
26National Grid | July Interconnection Webinar | July 16 2020
Standard Criteria
Applies to
Projects that require Distribution System Impact Study (DSIS)
Large-scale DG projects
Generally greater than 500 kW but project specific
DG projects requiring System Modifications at the substation level
Non-listed inverters or generators other than PV
Induction Synchronous Asynchronous
Most CHP systems
All projects that do not qualify for the Simplified or Expedited process
27National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Pre-Application
Application
Standard
Engineering Review
Impact StudyDetailed Study
Conditional Approval (to construct DG system)
Company Construction
Witness Test
Authorization to Interconnect
httpsngusforcecomsarticleMA-Complex-Standard-Application-Process
28National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Standard
Eligible Facilities Any DG
Acknowledge Receipt of Application (3 days)
Review Application for Completeness 10 days
Complete Standard Process Initial Review 20 days
Send Impact Study Agreement 5 days
Complete Impact Study 55-60 days or by mutual agreement depending on complexity
Complete Detailed Study (if needed) 30 ndash 60 days or by mutual agreement depending on complexity
Send Executable Agreement (ISA) 15 days
Total Maximum Days 135160 days (200 days for Standard Complex)
Construction Schedule Varied
Witness Test10 days from the Companyrsquos approval of WT procedures or
by mutual agreement
29National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Impact Study will determine the level of impact on the Companyrsquos EPS and the required System
Modifications
Impact and Detailed Study (if applicable) will determine System Modifications required and cost
(Risk of Islanding)
ISO-NE Generator Notification Process will be required for applications that are greater than 1MW
but less than 5MW (ie PP5-1 or GNF) and a Proposed Plan Application (PPA) along with supporting Transmission System Impact Study (TSIS) will be required for applications 5MW or greater in size single or potentially in aggregate Size of project based on nameplate rating of
system
These requirements will add time to the DG Interconnection Process if there is an ASO hold If so
the DSIS will be placed on hold until the ISO-NE approval or determination is known likely at a point during the DSIS process
Interconnection Service Agreement (ISA) provided after Study completed or an Early ISA could be requested if Detailed Study is required
If substation modifications required Company has 60 BD for Study (MDPU 1320 ndash pg 50) or by mutual agreement if estimated construction cost greater than $1 million
30National Grid | July Interconnection Webinar | July 16 2020
New CEI Structure
Process Improvement
amp Future TopicsWill Kern
06
32National Grid | July Interconnection Webinar | July 16 2020
Process Improvement amp Future Topics
Potential webinar topics
Verizon initiatives
Hosting Capacity Maps
Metering
Mike Porcaro as Ombudsperson
Questions
07
34National Grid | July Interconnection Webinar | July 16 2020
Appendix Summary of Resources Documents amp Links
Distributed Generation Website ndash
httpswww9nationalgriduscommasselectrichomeenergyeffdistributed_gen
erationasp
Interconnection Process Resources ndash
httpswww9nationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
Storage Assistance -
httpsngusforcecomsarticleStorage-Assistance
DPU Interim Guidance for ESS -
httpsngusforcecomsarticleHow-to-Add-Energy-Storage-to-an-In-Progress-Application-in-Massachusetts
| [Insert document title] | [Insert date]
8National Grid | July Interconnection Webinar | July 16 2020
Energy Storage System (ESS) Assets
The Inverter Information
This is the inverter for the ESS not the ESS itself
For DC coupled this is often the same inverter as the solar for example a SolarEdge inverter
For AC coupled this can be a separate inverter or the same as the ESS if it is a combined unit for example Powerwall
The ESS Information
Must be completed for AC and DC coupled batteries
The Storage Capacity per Device (kW DC) or (kW AC) is required (often
missed)
The Relay Information
Provides space for inputting ESS operating hours otherwise can be included in
the ESS information as an upload under special guidance
9National Grid | July Interconnection Webinar | July 16 2020
Energy Storage System (ESS) Form
The ESS Form is required and must be filled out electronically on the
portal (cannot be upload only)
Most of the fields on the ESS form are pre-populated from the Storage
case or values already entered on the case
If any of the pre-populated values look incorrect or need to be
updated please update the storage asset or reach to out to CEI
job owner thru Chatter
Link for knowledge page for adding a storage
asset httpsngusforcecomservletservletFileDownloadfile=0150W00000E
oHnv
Link for Storage Assistance httpsngusforcecomsarticleStorage-
Assistance
Simplified Review
ProcessMargaret Campbell
03
11National Grid | July Interconnection Webinar | July 16 2020
Simplified Criteria
UL Listed (1741 SA) inverter-based systems with power ratings of
15kW or less on a single phase service on a radial feed
UL Listed (1741 SA) inverter-based systems with power ratings of
25kW or less on a three phase service on a radial feed
The Simplified process does not apply for
Non-listed inverters or other generators (induction synchronous
asynchronous)
Aggregate generation capacity of listed inverters that exceed the
above-mentioned limits
Project that did not pass the Simplified process Screens
12National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Application
Simplified
Conditional Approval (to construct DG system)
Witness Test (completion package)
Authorization to Interconnect
httpswwwnationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
13National Grid | July Interconnection Webinar | July 16 2020
Simplified Review Path
Simplified Process
Eligible Facilities Listed Small Inverter
Acknowledge Receipt of Application (3 days)
Review Application for Completeness 10 days
Complete Review of All Screens 15-20 days
Complete Supplemental Review (if needed) NA
Complete Standard Process Initial Review NA
Send Follow-on Studies CostAgreement NA
Complete Impact Study (if needed) NA
Complete Detailed Study (if needed) NA
Send Executable Agreement Done The agreement is part of the application
Total Maximum Days 25 days (30 in the case of failure of Screen 5)
Construction Schedule Varied
Witness Test Within 10 days from receipt of the Certificate of Completion or by mutual agreement
14National Grid | July Interconnection Webinar | July 16 2020
Common Holds or Concerns
Application
The application must match the customerrsquos account name address
account number and meter number
Wait to construct the system until after Conditional Approval is issued
After Conditional Approval
Complete the Service Upgrade Form so the work request can be
created and provided to the wire inspector at the before the inspection
Completion Package
Have Wire Inspection called in before submitting Completion
Documents
15National Grid | July Interconnection Webinar | July 16 2020
Recent Portal Improvements
Expedited Review
ProcessMike Armell
04
17National Grid | July Interconnection Webinar | July 16 2020
Expedited Criteria
Single phase customers with listed single-phase inverter based
systems with power ratings of gt15 kW on a radial feed
Three phase customers with listed three-phase inverter based
systems with power ratings of gt25kW on a radial feed
Any project that did not pass the Simplified process Screens
Non-Simplified projects that do not require an Impact Study
Maximum size supplemental review is based on review of
Screens
18National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Pre-Application (if 500 kW or greater)
Application
Expedited
Engineering Review
Supplemental Review
Conditional Approval (to construct DG system)
Company Construction
Witness Test (where applicable)
Completion Document Review and Meter Set
Authorization to Interconnect
httpswwwnationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
19National Grid | July Interconnection Webinar | July 16 2020
Expedited Review Path
Expedited
Eligible Facilities Listed Inverter DG
Acknowledge Receipt of Application(3 days)
Review Application for Completeness10 days
Complete Review of All Screens25 days
Complete Supplemental Review (if needed)20 days or Standard Process
Send Executable Agreement10 days
Total Maximum Days 4565 days
Construction ScheduleVaried
Notice Witness TestWithin 10 days of receiving Certificate of
Completion or by mutual agreement
If any Screens are not passed the
Company may require a Supplemental Review Agreementbefore providing an Interconnection
Service Agreement
Key threshold if aggregate
generation is less than 67 of minimum load on the
feeder Other Screens review voltage quality reliability and safety to reduce the potential
need for Impact Studies
Relay control system must be well
defined to make SupplementalReview easier
20National Grid | July Interconnection Webinar | July 16 2020
Recent Improvements
Infrastructure List View-Can be found at the bottom of the home
page on the portal
Lists of all feeders in each jurisdiction (MA NY RI) that can be
sorted by Feeder Name Substation Transformer Name
Operating District Connected DG kWAC Pending DG kWAC
whether or not the Feeders are Registered with FERC
Link to
guide httpsngusforcecomservletservletFileDownloadfile=
0150W00000FKqNQ
Developers have access in portal to view muni WO for completion
21National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
For most Expedited applications a ldquoCommissioning Memordquo on
a company letterhead is provided in lieu of Witness Test
Commissioning test should consist of the following
1 Two (2) second shutdown when disconnect open test
2 Five (5) minutes before restart when disconnect is closed test
3 Confirm system matches As-built (include most recent revision
date of as built provided)
4 List the inverter relay frequency (Hz) and trip time settings
22National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
As Built Must be PE stamped and signed dated by person
that performed the commissioning test (Signature date
should match date of test)
Pictures Meter picture should show permanent plaque
(visible at eye level) that includes a warning about generator
installed
Pictures If the AC utility disconnect switch is not grouped
with and adjacent to the utility revenue meter then a
permanent plaque (visible at eye level) that clearly identifies
the location of the AC utility disconnect is required
23National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
Evidence of insurance is required for all projects gt 60kW in
MA and gt50kW in RI Refer to the ISA and Interconnection
Tariff for insurance requirements
Qualifying Facility documents
Schedule A (P-Rate) required for all QF projects
W9 (Only for projects gt60kW)
ACH (Only for projects gt60kW)
Supplier Enrollment Form (Only for projects gt60kW)
24National Grid | July Interconnection Webinar | July 16 2020
Metering Reminder
Projects greater than 60kW in MA and greater than 25kW in RI
require interval metering (Wireless or phone line)
Company needs a 4G wireless signal test on a Verizon network in
order to provide wireless metering
Phone lines must be dedicated and terminated at the meter
location Line must be 100 copper Fiber lines will not
communicate properly
These meters are long lead time items and prep time can be 6-8
weeks so it is important to work through this with your job owner
well in advance of when you intend to seek Authority to
Interconnect
Wireless test form httpsngusforcecomsarticleMA-
Interconnection-Documents
Standard Review
ProcessNat Mahattanasakul
05
26National Grid | July Interconnection Webinar | July 16 2020
Standard Criteria
Applies to
Projects that require Distribution System Impact Study (DSIS)
Large-scale DG projects
Generally greater than 500 kW but project specific
DG projects requiring System Modifications at the substation level
Non-listed inverters or generators other than PV
Induction Synchronous Asynchronous
Most CHP systems
All projects that do not qualify for the Simplified or Expedited process
27National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Pre-Application
Application
Standard
Engineering Review
Impact StudyDetailed Study
Conditional Approval (to construct DG system)
Company Construction
Witness Test
Authorization to Interconnect
httpsngusforcecomsarticleMA-Complex-Standard-Application-Process
28National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Standard
Eligible Facilities Any DG
Acknowledge Receipt of Application (3 days)
Review Application for Completeness 10 days
Complete Standard Process Initial Review 20 days
Send Impact Study Agreement 5 days
Complete Impact Study 55-60 days or by mutual agreement depending on complexity
Complete Detailed Study (if needed) 30 ndash 60 days or by mutual agreement depending on complexity
Send Executable Agreement (ISA) 15 days
Total Maximum Days 135160 days (200 days for Standard Complex)
Construction Schedule Varied
Witness Test10 days from the Companyrsquos approval of WT procedures or
by mutual agreement
29National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Impact Study will determine the level of impact on the Companyrsquos EPS and the required System
Modifications
Impact and Detailed Study (if applicable) will determine System Modifications required and cost
(Risk of Islanding)
ISO-NE Generator Notification Process will be required for applications that are greater than 1MW
but less than 5MW (ie PP5-1 or GNF) and a Proposed Plan Application (PPA) along with supporting Transmission System Impact Study (TSIS) will be required for applications 5MW or greater in size single or potentially in aggregate Size of project based on nameplate rating of
system
These requirements will add time to the DG Interconnection Process if there is an ASO hold If so
the DSIS will be placed on hold until the ISO-NE approval or determination is known likely at a point during the DSIS process
Interconnection Service Agreement (ISA) provided after Study completed or an Early ISA could be requested if Detailed Study is required
If substation modifications required Company has 60 BD for Study (MDPU 1320 ndash pg 50) or by mutual agreement if estimated construction cost greater than $1 million
30National Grid | July Interconnection Webinar | July 16 2020
New CEI Structure
Process Improvement
amp Future TopicsWill Kern
06
32National Grid | July Interconnection Webinar | July 16 2020
Process Improvement amp Future Topics
Potential webinar topics
Verizon initiatives
Hosting Capacity Maps
Metering
Mike Porcaro as Ombudsperson
Questions
07
34National Grid | July Interconnection Webinar | July 16 2020
Appendix Summary of Resources Documents amp Links
Distributed Generation Website ndash
httpswww9nationalgriduscommasselectrichomeenergyeffdistributed_gen
erationasp
Interconnection Process Resources ndash
httpswww9nationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
Storage Assistance -
httpsngusforcecomsarticleStorage-Assistance
DPU Interim Guidance for ESS -
httpsngusforcecomsarticleHow-to-Add-Energy-Storage-to-an-In-Progress-Application-in-Massachusetts
| [Insert document title] | [Insert date]
9National Grid | July Interconnection Webinar | July 16 2020
Energy Storage System (ESS) Form
The ESS Form is required and must be filled out electronically on the
portal (cannot be upload only)
Most of the fields on the ESS form are pre-populated from the Storage
case or values already entered on the case
If any of the pre-populated values look incorrect or need to be
updated please update the storage asset or reach to out to CEI
job owner thru Chatter
Link for knowledge page for adding a storage
asset httpsngusforcecomservletservletFileDownloadfile=0150W00000E
oHnv
Link for Storage Assistance httpsngusforcecomsarticleStorage-
Assistance
Simplified Review
ProcessMargaret Campbell
03
11National Grid | July Interconnection Webinar | July 16 2020
Simplified Criteria
UL Listed (1741 SA) inverter-based systems with power ratings of
15kW or less on a single phase service on a radial feed
UL Listed (1741 SA) inverter-based systems with power ratings of
25kW or less on a three phase service on a radial feed
The Simplified process does not apply for
Non-listed inverters or other generators (induction synchronous
asynchronous)
Aggregate generation capacity of listed inverters that exceed the
above-mentioned limits
Project that did not pass the Simplified process Screens
12National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Application
Simplified
Conditional Approval (to construct DG system)
Witness Test (completion package)
Authorization to Interconnect
httpswwwnationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
13National Grid | July Interconnection Webinar | July 16 2020
Simplified Review Path
Simplified Process
Eligible Facilities Listed Small Inverter
Acknowledge Receipt of Application (3 days)
Review Application for Completeness 10 days
Complete Review of All Screens 15-20 days
Complete Supplemental Review (if needed) NA
Complete Standard Process Initial Review NA
Send Follow-on Studies CostAgreement NA
Complete Impact Study (if needed) NA
Complete Detailed Study (if needed) NA
Send Executable Agreement Done The agreement is part of the application
Total Maximum Days 25 days (30 in the case of failure of Screen 5)
Construction Schedule Varied
Witness Test Within 10 days from receipt of the Certificate of Completion or by mutual agreement
14National Grid | July Interconnection Webinar | July 16 2020
Common Holds or Concerns
Application
The application must match the customerrsquos account name address
account number and meter number
Wait to construct the system until after Conditional Approval is issued
After Conditional Approval
Complete the Service Upgrade Form so the work request can be
created and provided to the wire inspector at the before the inspection
Completion Package
Have Wire Inspection called in before submitting Completion
Documents
15National Grid | July Interconnection Webinar | July 16 2020
Recent Portal Improvements
Expedited Review
ProcessMike Armell
04
17National Grid | July Interconnection Webinar | July 16 2020
Expedited Criteria
Single phase customers with listed single-phase inverter based
systems with power ratings of gt15 kW on a radial feed
Three phase customers with listed three-phase inverter based
systems with power ratings of gt25kW on a radial feed
Any project that did not pass the Simplified process Screens
Non-Simplified projects that do not require an Impact Study
Maximum size supplemental review is based on review of
Screens
18National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Pre-Application (if 500 kW or greater)
Application
Expedited
Engineering Review
Supplemental Review
Conditional Approval (to construct DG system)
Company Construction
Witness Test (where applicable)
Completion Document Review and Meter Set
Authorization to Interconnect
httpswwwnationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
19National Grid | July Interconnection Webinar | July 16 2020
Expedited Review Path
Expedited
Eligible Facilities Listed Inverter DG
Acknowledge Receipt of Application(3 days)
Review Application for Completeness10 days
Complete Review of All Screens25 days
Complete Supplemental Review (if needed)20 days or Standard Process
Send Executable Agreement10 days
Total Maximum Days 4565 days
Construction ScheduleVaried
Notice Witness TestWithin 10 days of receiving Certificate of
Completion or by mutual agreement
If any Screens are not passed the
Company may require a Supplemental Review Agreementbefore providing an Interconnection
Service Agreement
Key threshold if aggregate
generation is less than 67 of minimum load on the
feeder Other Screens review voltage quality reliability and safety to reduce the potential
need for Impact Studies
Relay control system must be well
defined to make SupplementalReview easier
20National Grid | July Interconnection Webinar | July 16 2020
Recent Improvements
Infrastructure List View-Can be found at the bottom of the home
page on the portal
Lists of all feeders in each jurisdiction (MA NY RI) that can be
sorted by Feeder Name Substation Transformer Name
Operating District Connected DG kWAC Pending DG kWAC
whether or not the Feeders are Registered with FERC
Link to
guide httpsngusforcecomservletservletFileDownloadfile=
0150W00000FKqNQ
Developers have access in portal to view muni WO for completion
21National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
For most Expedited applications a ldquoCommissioning Memordquo on
a company letterhead is provided in lieu of Witness Test
Commissioning test should consist of the following
1 Two (2) second shutdown when disconnect open test
2 Five (5) minutes before restart when disconnect is closed test
3 Confirm system matches As-built (include most recent revision
date of as built provided)
4 List the inverter relay frequency (Hz) and trip time settings
22National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
As Built Must be PE stamped and signed dated by person
that performed the commissioning test (Signature date
should match date of test)
Pictures Meter picture should show permanent plaque
(visible at eye level) that includes a warning about generator
installed
Pictures If the AC utility disconnect switch is not grouped
with and adjacent to the utility revenue meter then a
permanent plaque (visible at eye level) that clearly identifies
the location of the AC utility disconnect is required
23National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
Evidence of insurance is required for all projects gt 60kW in
MA and gt50kW in RI Refer to the ISA and Interconnection
Tariff for insurance requirements
Qualifying Facility documents
Schedule A (P-Rate) required for all QF projects
W9 (Only for projects gt60kW)
ACH (Only for projects gt60kW)
Supplier Enrollment Form (Only for projects gt60kW)
24National Grid | July Interconnection Webinar | July 16 2020
Metering Reminder
Projects greater than 60kW in MA and greater than 25kW in RI
require interval metering (Wireless or phone line)
Company needs a 4G wireless signal test on a Verizon network in
order to provide wireless metering
Phone lines must be dedicated and terminated at the meter
location Line must be 100 copper Fiber lines will not
communicate properly
These meters are long lead time items and prep time can be 6-8
weeks so it is important to work through this with your job owner
well in advance of when you intend to seek Authority to
Interconnect
Wireless test form httpsngusforcecomsarticleMA-
Interconnection-Documents
Standard Review
ProcessNat Mahattanasakul
05
26National Grid | July Interconnection Webinar | July 16 2020
Standard Criteria
Applies to
Projects that require Distribution System Impact Study (DSIS)
Large-scale DG projects
Generally greater than 500 kW but project specific
DG projects requiring System Modifications at the substation level
Non-listed inverters or generators other than PV
Induction Synchronous Asynchronous
Most CHP systems
All projects that do not qualify for the Simplified or Expedited process
27National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Pre-Application
Application
Standard
Engineering Review
Impact StudyDetailed Study
Conditional Approval (to construct DG system)
Company Construction
Witness Test
Authorization to Interconnect
httpsngusforcecomsarticleMA-Complex-Standard-Application-Process
28National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Standard
Eligible Facilities Any DG
Acknowledge Receipt of Application (3 days)
Review Application for Completeness 10 days
Complete Standard Process Initial Review 20 days
Send Impact Study Agreement 5 days
Complete Impact Study 55-60 days or by mutual agreement depending on complexity
Complete Detailed Study (if needed) 30 ndash 60 days or by mutual agreement depending on complexity
Send Executable Agreement (ISA) 15 days
Total Maximum Days 135160 days (200 days for Standard Complex)
Construction Schedule Varied
Witness Test10 days from the Companyrsquos approval of WT procedures or
by mutual agreement
29National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Impact Study will determine the level of impact on the Companyrsquos EPS and the required System
Modifications
Impact and Detailed Study (if applicable) will determine System Modifications required and cost
(Risk of Islanding)
ISO-NE Generator Notification Process will be required for applications that are greater than 1MW
but less than 5MW (ie PP5-1 or GNF) and a Proposed Plan Application (PPA) along with supporting Transmission System Impact Study (TSIS) will be required for applications 5MW or greater in size single or potentially in aggregate Size of project based on nameplate rating of
system
These requirements will add time to the DG Interconnection Process if there is an ASO hold If so
the DSIS will be placed on hold until the ISO-NE approval or determination is known likely at a point during the DSIS process
Interconnection Service Agreement (ISA) provided after Study completed or an Early ISA could be requested if Detailed Study is required
If substation modifications required Company has 60 BD for Study (MDPU 1320 ndash pg 50) or by mutual agreement if estimated construction cost greater than $1 million
30National Grid | July Interconnection Webinar | July 16 2020
New CEI Structure
Process Improvement
amp Future TopicsWill Kern
06
32National Grid | July Interconnection Webinar | July 16 2020
Process Improvement amp Future Topics
Potential webinar topics
Verizon initiatives
Hosting Capacity Maps
Metering
Mike Porcaro as Ombudsperson
Questions
07
34National Grid | July Interconnection Webinar | July 16 2020
Appendix Summary of Resources Documents amp Links
Distributed Generation Website ndash
httpswww9nationalgriduscommasselectrichomeenergyeffdistributed_gen
erationasp
Interconnection Process Resources ndash
httpswww9nationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
Storage Assistance -
httpsngusforcecomsarticleStorage-Assistance
DPU Interim Guidance for ESS -
httpsngusforcecomsarticleHow-to-Add-Energy-Storage-to-an-In-Progress-Application-in-Massachusetts
| [Insert document title] | [Insert date]
Simplified Review
ProcessMargaret Campbell
03
11National Grid | July Interconnection Webinar | July 16 2020
Simplified Criteria
UL Listed (1741 SA) inverter-based systems with power ratings of
15kW or less on a single phase service on a radial feed
UL Listed (1741 SA) inverter-based systems with power ratings of
25kW or less on a three phase service on a radial feed
The Simplified process does not apply for
Non-listed inverters or other generators (induction synchronous
asynchronous)
Aggregate generation capacity of listed inverters that exceed the
above-mentioned limits
Project that did not pass the Simplified process Screens
12National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Application
Simplified
Conditional Approval (to construct DG system)
Witness Test (completion package)
Authorization to Interconnect
httpswwwnationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
13National Grid | July Interconnection Webinar | July 16 2020
Simplified Review Path
Simplified Process
Eligible Facilities Listed Small Inverter
Acknowledge Receipt of Application (3 days)
Review Application for Completeness 10 days
Complete Review of All Screens 15-20 days
Complete Supplemental Review (if needed) NA
Complete Standard Process Initial Review NA
Send Follow-on Studies CostAgreement NA
Complete Impact Study (if needed) NA
Complete Detailed Study (if needed) NA
Send Executable Agreement Done The agreement is part of the application
Total Maximum Days 25 days (30 in the case of failure of Screen 5)
Construction Schedule Varied
Witness Test Within 10 days from receipt of the Certificate of Completion or by mutual agreement
14National Grid | July Interconnection Webinar | July 16 2020
Common Holds or Concerns
Application
The application must match the customerrsquos account name address
account number and meter number
Wait to construct the system until after Conditional Approval is issued
After Conditional Approval
Complete the Service Upgrade Form so the work request can be
created and provided to the wire inspector at the before the inspection
Completion Package
Have Wire Inspection called in before submitting Completion
Documents
15National Grid | July Interconnection Webinar | July 16 2020
Recent Portal Improvements
Expedited Review
ProcessMike Armell
04
17National Grid | July Interconnection Webinar | July 16 2020
Expedited Criteria
Single phase customers with listed single-phase inverter based
systems with power ratings of gt15 kW on a radial feed
Three phase customers with listed three-phase inverter based
systems with power ratings of gt25kW on a radial feed
Any project that did not pass the Simplified process Screens
Non-Simplified projects that do not require an Impact Study
Maximum size supplemental review is based on review of
Screens
18National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Pre-Application (if 500 kW or greater)
Application
Expedited
Engineering Review
Supplemental Review
Conditional Approval (to construct DG system)
Company Construction
Witness Test (where applicable)
Completion Document Review and Meter Set
Authorization to Interconnect
httpswwwnationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
19National Grid | July Interconnection Webinar | July 16 2020
Expedited Review Path
Expedited
Eligible Facilities Listed Inverter DG
Acknowledge Receipt of Application(3 days)
Review Application for Completeness10 days
Complete Review of All Screens25 days
Complete Supplemental Review (if needed)20 days or Standard Process
Send Executable Agreement10 days
Total Maximum Days 4565 days
Construction ScheduleVaried
Notice Witness TestWithin 10 days of receiving Certificate of
Completion or by mutual agreement
If any Screens are not passed the
Company may require a Supplemental Review Agreementbefore providing an Interconnection
Service Agreement
Key threshold if aggregate
generation is less than 67 of minimum load on the
feeder Other Screens review voltage quality reliability and safety to reduce the potential
need for Impact Studies
Relay control system must be well
defined to make SupplementalReview easier
20National Grid | July Interconnection Webinar | July 16 2020
Recent Improvements
Infrastructure List View-Can be found at the bottom of the home
page on the portal
Lists of all feeders in each jurisdiction (MA NY RI) that can be
sorted by Feeder Name Substation Transformer Name
Operating District Connected DG kWAC Pending DG kWAC
whether or not the Feeders are Registered with FERC
Link to
guide httpsngusforcecomservletservletFileDownloadfile=
0150W00000FKqNQ
Developers have access in portal to view muni WO for completion
21National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
For most Expedited applications a ldquoCommissioning Memordquo on
a company letterhead is provided in lieu of Witness Test
Commissioning test should consist of the following
1 Two (2) second shutdown when disconnect open test
2 Five (5) minutes before restart when disconnect is closed test
3 Confirm system matches As-built (include most recent revision
date of as built provided)
4 List the inverter relay frequency (Hz) and trip time settings
22National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
As Built Must be PE stamped and signed dated by person
that performed the commissioning test (Signature date
should match date of test)
Pictures Meter picture should show permanent plaque
(visible at eye level) that includes a warning about generator
installed
Pictures If the AC utility disconnect switch is not grouped
with and adjacent to the utility revenue meter then a
permanent plaque (visible at eye level) that clearly identifies
the location of the AC utility disconnect is required
23National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
Evidence of insurance is required for all projects gt 60kW in
MA and gt50kW in RI Refer to the ISA and Interconnection
Tariff for insurance requirements
Qualifying Facility documents
Schedule A (P-Rate) required for all QF projects
W9 (Only for projects gt60kW)
ACH (Only for projects gt60kW)
Supplier Enrollment Form (Only for projects gt60kW)
24National Grid | July Interconnection Webinar | July 16 2020
Metering Reminder
Projects greater than 60kW in MA and greater than 25kW in RI
require interval metering (Wireless or phone line)
Company needs a 4G wireless signal test on a Verizon network in
order to provide wireless metering
Phone lines must be dedicated and terminated at the meter
location Line must be 100 copper Fiber lines will not
communicate properly
These meters are long lead time items and prep time can be 6-8
weeks so it is important to work through this with your job owner
well in advance of when you intend to seek Authority to
Interconnect
Wireless test form httpsngusforcecomsarticleMA-
Interconnection-Documents
Standard Review
ProcessNat Mahattanasakul
05
26National Grid | July Interconnection Webinar | July 16 2020
Standard Criteria
Applies to
Projects that require Distribution System Impact Study (DSIS)
Large-scale DG projects
Generally greater than 500 kW but project specific
DG projects requiring System Modifications at the substation level
Non-listed inverters or generators other than PV
Induction Synchronous Asynchronous
Most CHP systems
All projects that do not qualify for the Simplified or Expedited process
27National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Pre-Application
Application
Standard
Engineering Review
Impact StudyDetailed Study
Conditional Approval (to construct DG system)
Company Construction
Witness Test
Authorization to Interconnect
httpsngusforcecomsarticleMA-Complex-Standard-Application-Process
28National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Standard
Eligible Facilities Any DG
Acknowledge Receipt of Application (3 days)
Review Application for Completeness 10 days
Complete Standard Process Initial Review 20 days
Send Impact Study Agreement 5 days
Complete Impact Study 55-60 days or by mutual agreement depending on complexity
Complete Detailed Study (if needed) 30 ndash 60 days or by mutual agreement depending on complexity
Send Executable Agreement (ISA) 15 days
Total Maximum Days 135160 days (200 days for Standard Complex)
Construction Schedule Varied
Witness Test10 days from the Companyrsquos approval of WT procedures or
by mutual agreement
29National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Impact Study will determine the level of impact on the Companyrsquos EPS and the required System
Modifications
Impact and Detailed Study (if applicable) will determine System Modifications required and cost
(Risk of Islanding)
ISO-NE Generator Notification Process will be required for applications that are greater than 1MW
but less than 5MW (ie PP5-1 or GNF) and a Proposed Plan Application (PPA) along with supporting Transmission System Impact Study (TSIS) will be required for applications 5MW or greater in size single or potentially in aggregate Size of project based on nameplate rating of
system
These requirements will add time to the DG Interconnection Process if there is an ASO hold If so
the DSIS will be placed on hold until the ISO-NE approval or determination is known likely at a point during the DSIS process
Interconnection Service Agreement (ISA) provided after Study completed or an Early ISA could be requested if Detailed Study is required
If substation modifications required Company has 60 BD for Study (MDPU 1320 ndash pg 50) or by mutual agreement if estimated construction cost greater than $1 million
30National Grid | July Interconnection Webinar | July 16 2020
New CEI Structure
Process Improvement
amp Future TopicsWill Kern
06
32National Grid | July Interconnection Webinar | July 16 2020
Process Improvement amp Future Topics
Potential webinar topics
Verizon initiatives
Hosting Capacity Maps
Metering
Mike Porcaro as Ombudsperson
Questions
07
34National Grid | July Interconnection Webinar | July 16 2020
Appendix Summary of Resources Documents amp Links
Distributed Generation Website ndash
httpswww9nationalgriduscommasselectrichomeenergyeffdistributed_gen
erationasp
Interconnection Process Resources ndash
httpswww9nationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
Storage Assistance -
httpsngusforcecomsarticleStorage-Assistance
DPU Interim Guidance for ESS -
httpsngusforcecomsarticleHow-to-Add-Energy-Storage-to-an-In-Progress-Application-in-Massachusetts
| [Insert document title] | [Insert date]
11National Grid | July Interconnection Webinar | July 16 2020
Simplified Criteria
UL Listed (1741 SA) inverter-based systems with power ratings of
15kW or less on a single phase service on a radial feed
UL Listed (1741 SA) inverter-based systems with power ratings of
25kW or less on a three phase service on a radial feed
The Simplified process does not apply for
Non-listed inverters or other generators (induction synchronous
asynchronous)
Aggregate generation capacity of listed inverters that exceed the
above-mentioned limits
Project that did not pass the Simplified process Screens
12National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Application
Simplified
Conditional Approval (to construct DG system)
Witness Test (completion package)
Authorization to Interconnect
httpswwwnationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
13National Grid | July Interconnection Webinar | July 16 2020
Simplified Review Path
Simplified Process
Eligible Facilities Listed Small Inverter
Acknowledge Receipt of Application (3 days)
Review Application for Completeness 10 days
Complete Review of All Screens 15-20 days
Complete Supplemental Review (if needed) NA
Complete Standard Process Initial Review NA
Send Follow-on Studies CostAgreement NA
Complete Impact Study (if needed) NA
Complete Detailed Study (if needed) NA
Send Executable Agreement Done The agreement is part of the application
Total Maximum Days 25 days (30 in the case of failure of Screen 5)
Construction Schedule Varied
Witness Test Within 10 days from receipt of the Certificate of Completion or by mutual agreement
14National Grid | July Interconnection Webinar | July 16 2020
Common Holds or Concerns
Application
The application must match the customerrsquos account name address
account number and meter number
Wait to construct the system until after Conditional Approval is issued
After Conditional Approval
Complete the Service Upgrade Form so the work request can be
created and provided to the wire inspector at the before the inspection
Completion Package
Have Wire Inspection called in before submitting Completion
Documents
15National Grid | July Interconnection Webinar | July 16 2020
Recent Portal Improvements
Expedited Review
ProcessMike Armell
04
17National Grid | July Interconnection Webinar | July 16 2020
Expedited Criteria
Single phase customers with listed single-phase inverter based
systems with power ratings of gt15 kW on a radial feed
Three phase customers with listed three-phase inverter based
systems with power ratings of gt25kW on a radial feed
Any project that did not pass the Simplified process Screens
Non-Simplified projects that do not require an Impact Study
Maximum size supplemental review is based on review of
Screens
18National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Pre-Application (if 500 kW or greater)
Application
Expedited
Engineering Review
Supplemental Review
Conditional Approval (to construct DG system)
Company Construction
Witness Test (where applicable)
Completion Document Review and Meter Set
Authorization to Interconnect
httpswwwnationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
19National Grid | July Interconnection Webinar | July 16 2020
Expedited Review Path
Expedited
Eligible Facilities Listed Inverter DG
Acknowledge Receipt of Application(3 days)
Review Application for Completeness10 days
Complete Review of All Screens25 days
Complete Supplemental Review (if needed)20 days or Standard Process
Send Executable Agreement10 days
Total Maximum Days 4565 days
Construction ScheduleVaried
Notice Witness TestWithin 10 days of receiving Certificate of
Completion or by mutual agreement
If any Screens are not passed the
Company may require a Supplemental Review Agreementbefore providing an Interconnection
Service Agreement
Key threshold if aggregate
generation is less than 67 of minimum load on the
feeder Other Screens review voltage quality reliability and safety to reduce the potential
need for Impact Studies
Relay control system must be well
defined to make SupplementalReview easier
20National Grid | July Interconnection Webinar | July 16 2020
Recent Improvements
Infrastructure List View-Can be found at the bottom of the home
page on the portal
Lists of all feeders in each jurisdiction (MA NY RI) that can be
sorted by Feeder Name Substation Transformer Name
Operating District Connected DG kWAC Pending DG kWAC
whether or not the Feeders are Registered with FERC
Link to
guide httpsngusforcecomservletservletFileDownloadfile=
0150W00000FKqNQ
Developers have access in portal to view muni WO for completion
21National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
For most Expedited applications a ldquoCommissioning Memordquo on
a company letterhead is provided in lieu of Witness Test
Commissioning test should consist of the following
1 Two (2) second shutdown when disconnect open test
2 Five (5) minutes before restart when disconnect is closed test
3 Confirm system matches As-built (include most recent revision
date of as built provided)
4 List the inverter relay frequency (Hz) and trip time settings
22National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
As Built Must be PE stamped and signed dated by person
that performed the commissioning test (Signature date
should match date of test)
Pictures Meter picture should show permanent plaque
(visible at eye level) that includes a warning about generator
installed
Pictures If the AC utility disconnect switch is not grouped
with and adjacent to the utility revenue meter then a
permanent plaque (visible at eye level) that clearly identifies
the location of the AC utility disconnect is required
23National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
Evidence of insurance is required for all projects gt 60kW in
MA and gt50kW in RI Refer to the ISA and Interconnection
Tariff for insurance requirements
Qualifying Facility documents
Schedule A (P-Rate) required for all QF projects
W9 (Only for projects gt60kW)
ACH (Only for projects gt60kW)
Supplier Enrollment Form (Only for projects gt60kW)
24National Grid | July Interconnection Webinar | July 16 2020
Metering Reminder
Projects greater than 60kW in MA and greater than 25kW in RI
require interval metering (Wireless or phone line)
Company needs a 4G wireless signal test on a Verizon network in
order to provide wireless metering
Phone lines must be dedicated and terminated at the meter
location Line must be 100 copper Fiber lines will not
communicate properly
These meters are long lead time items and prep time can be 6-8
weeks so it is important to work through this with your job owner
well in advance of when you intend to seek Authority to
Interconnect
Wireless test form httpsngusforcecomsarticleMA-
Interconnection-Documents
Standard Review
ProcessNat Mahattanasakul
05
26National Grid | July Interconnection Webinar | July 16 2020
Standard Criteria
Applies to
Projects that require Distribution System Impact Study (DSIS)
Large-scale DG projects
Generally greater than 500 kW but project specific
DG projects requiring System Modifications at the substation level
Non-listed inverters or generators other than PV
Induction Synchronous Asynchronous
Most CHP systems
All projects that do not qualify for the Simplified or Expedited process
27National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Pre-Application
Application
Standard
Engineering Review
Impact StudyDetailed Study
Conditional Approval (to construct DG system)
Company Construction
Witness Test
Authorization to Interconnect
httpsngusforcecomsarticleMA-Complex-Standard-Application-Process
28National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Standard
Eligible Facilities Any DG
Acknowledge Receipt of Application (3 days)
Review Application for Completeness 10 days
Complete Standard Process Initial Review 20 days
Send Impact Study Agreement 5 days
Complete Impact Study 55-60 days or by mutual agreement depending on complexity
Complete Detailed Study (if needed) 30 ndash 60 days or by mutual agreement depending on complexity
Send Executable Agreement (ISA) 15 days
Total Maximum Days 135160 days (200 days for Standard Complex)
Construction Schedule Varied
Witness Test10 days from the Companyrsquos approval of WT procedures or
by mutual agreement
29National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Impact Study will determine the level of impact on the Companyrsquos EPS and the required System
Modifications
Impact and Detailed Study (if applicable) will determine System Modifications required and cost
(Risk of Islanding)
ISO-NE Generator Notification Process will be required for applications that are greater than 1MW
but less than 5MW (ie PP5-1 or GNF) and a Proposed Plan Application (PPA) along with supporting Transmission System Impact Study (TSIS) will be required for applications 5MW or greater in size single or potentially in aggregate Size of project based on nameplate rating of
system
These requirements will add time to the DG Interconnection Process if there is an ASO hold If so
the DSIS will be placed on hold until the ISO-NE approval or determination is known likely at a point during the DSIS process
Interconnection Service Agreement (ISA) provided after Study completed or an Early ISA could be requested if Detailed Study is required
If substation modifications required Company has 60 BD for Study (MDPU 1320 ndash pg 50) or by mutual agreement if estimated construction cost greater than $1 million
30National Grid | July Interconnection Webinar | July 16 2020
New CEI Structure
Process Improvement
amp Future TopicsWill Kern
06
32National Grid | July Interconnection Webinar | July 16 2020
Process Improvement amp Future Topics
Potential webinar topics
Verizon initiatives
Hosting Capacity Maps
Metering
Mike Porcaro as Ombudsperson
Questions
07
34National Grid | July Interconnection Webinar | July 16 2020
Appendix Summary of Resources Documents amp Links
Distributed Generation Website ndash
httpswww9nationalgriduscommasselectrichomeenergyeffdistributed_gen
erationasp
Interconnection Process Resources ndash
httpswww9nationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
Storage Assistance -
httpsngusforcecomsarticleStorage-Assistance
DPU Interim Guidance for ESS -
httpsngusforcecomsarticleHow-to-Add-Energy-Storage-to-an-In-Progress-Application-in-Massachusetts
| [Insert document title] | [Insert date]
12National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Application
Simplified
Conditional Approval (to construct DG system)
Witness Test (completion package)
Authorization to Interconnect
httpswwwnationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
13National Grid | July Interconnection Webinar | July 16 2020
Simplified Review Path
Simplified Process
Eligible Facilities Listed Small Inverter
Acknowledge Receipt of Application (3 days)
Review Application for Completeness 10 days
Complete Review of All Screens 15-20 days
Complete Supplemental Review (if needed) NA
Complete Standard Process Initial Review NA
Send Follow-on Studies CostAgreement NA
Complete Impact Study (if needed) NA
Complete Detailed Study (if needed) NA
Send Executable Agreement Done The agreement is part of the application
Total Maximum Days 25 days (30 in the case of failure of Screen 5)
Construction Schedule Varied
Witness Test Within 10 days from receipt of the Certificate of Completion or by mutual agreement
14National Grid | July Interconnection Webinar | July 16 2020
Common Holds or Concerns
Application
The application must match the customerrsquos account name address
account number and meter number
Wait to construct the system until after Conditional Approval is issued
After Conditional Approval
Complete the Service Upgrade Form so the work request can be
created and provided to the wire inspector at the before the inspection
Completion Package
Have Wire Inspection called in before submitting Completion
Documents
15National Grid | July Interconnection Webinar | July 16 2020
Recent Portal Improvements
Expedited Review
ProcessMike Armell
04
17National Grid | July Interconnection Webinar | July 16 2020
Expedited Criteria
Single phase customers with listed single-phase inverter based
systems with power ratings of gt15 kW on a radial feed
Three phase customers with listed three-phase inverter based
systems with power ratings of gt25kW on a radial feed
Any project that did not pass the Simplified process Screens
Non-Simplified projects that do not require an Impact Study
Maximum size supplemental review is based on review of
Screens
18National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Pre-Application (if 500 kW or greater)
Application
Expedited
Engineering Review
Supplemental Review
Conditional Approval (to construct DG system)
Company Construction
Witness Test (where applicable)
Completion Document Review and Meter Set
Authorization to Interconnect
httpswwwnationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
19National Grid | July Interconnection Webinar | July 16 2020
Expedited Review Path
Expedited
Eligible Facilities Listed Inverter DG
Acknowledge Receipt of Application(3 days)
Review Application for Completeness10 days
Complete Review of All Screens25 days
Complete Supplemental Review (if needed)20 days or Standard Process
Send Executable Agreement10 days
Total Maximum Days 4565 days
Construction ScheduleVaried
Notice Witness TestWithin 10 days of receiving Certificate of
Completion or by mutual agreement
If any Screens are not passed the
Company may require a Supplemental Review Agreementbefore providing an Interconnection
Service Agreement
Key threshold if aggregate
generation is less than 67 of minimum load on the
feeder Other Screens review voltage quality reliability and safety to reduce the potential
need for Impact Studies
Relay control system must be well
defined to make SupplementalReview easier
20National Grid | July Interconnection Webinar | July 16 2020
Recent Improvements
Infrastructure List View-Can be found at the bottom of the home
page on the portal
Lists of all feeders in each jurisdiction (MA NY RI) that can be
sorted by Feeder Name Substation Transformer Name
Operating District Connected DG kWAC Pending DG kWAC
whether or not the Feeders are Registered with FERC
Link to
guide httpsngusforcecomservletservletFileDownloadfile=
0150W00000FKqNQ
Developers have access in portal to view muni WO for completion
21National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
For most Expedited applications a ldquoCommissioning Memordquo on
a company letterhead is provided in lieu of Witness Test
Commissioning test should consist of the following
1 Two (2) second shutdown when disconnect open test
2 Five (5) minutes before restart when disconnect is closed test
3 Confirm system matches As-built (include most recent revision
date of as built provided)
4 List the inverter relay frequency (Hz) and trip time settings
22National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
As Built Must be PE stamped and signed dated by person
that performed the commissioning test (Signature date
should match date of test)
Pictures Meter picture should show permanent plaque
(visible at eye level) that includes a warning about generator
installed
Pictures If the AC utility disconnect switch is not grouped
with and adjacent to the utility revenue meter then a
permanent plaque (visible at eye level) that clearly identifies
the location of the AC utility disconnect is required
23National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
Evidence of insurance is required for all projects gt 60kW in
MA and gt50kW in RI Refer to the ISA and Interconnection
Tariff for insurance requirements
Qualifying Facility documents
Schedule A (P-Rate) required for all QF projects
W9 (Only for projects gt60kW)
ACH (Only for projects gt60kW)
Supplier Enrollment Form (Only for projects gt60kW)
24National Grid | July Interconnection Webinar | July 16 2020
Metering Reminder
Projects greater than 60kW in MA and greater than 25kW in RI
require interval metering (Wireless or phone line)
Company needs a 4G wireless signal test on a Verizon network in
order to provide wireless metering
Phone lines must be dedicated and terminated at the meter
location Line must be 100 copper Fiber lines will not
communicate properly
These meters are long lead time items and prep time can be 6-8
weeks so it is important to work through this with your job owner
well in advance of when you intend to seek Authority to
Interconnect
Wireless test form httpsngusforcecomsarticleMA-
Interconnection-Documents
Standard Review
ProcessNat Mahattanasakul
05
26National Grid | July Interconnection Webinar | July 16 2020
Standard Criteria
Applies to
Projects that require Distribution System Impact Study (DSIS)
Large-scale DG projects
Generally greater than 500 kW but project specific
DG projects requiring System Modifications at the substation level
Non-listed inverters or generators other than PV
Induction Synchronous Asynchronous
Most CHP systems
All projects that do not qualify for the Simplified or Expedited process
27National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Pre-Application
Application
Standard
Engineering Review
Impact StudyDetailed Study
Conditional Approval (to construct DG system)
Company Construction
Witness Test
Authorization to Interconnect
httpsngusforcecomsarticleMA-Complex-Standard-Application-Process
28National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Standard
Eligible Facilities Any DG
Acknowledge Receipt of Application (3 days)
Review Application for Completeness 10 days
Complete Standard Process Initial Review 20 days
Send Impact Study Agreement 5 days
Complete Impact Study 55-60 days or by mutual agreement depending on complexity
Complete Detailed Study (if needed) 30 ndash 60 days or by mutual agreement depending on complexity
Send Executable Agreement (ISA) 15 days
Total Maximum Days 135160 days (200 days for Standard Complex)
Construction Schedule Varied
Witness Test10 days from the Companyrsquos approval of WT procedures or
by mutual agreement
29National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Impact Study will determine the level of impact on the Companyrsquos EPS and the required System
Modifications
Impact and Detailed Study (if applicable) will determine System Modifications required and cost
(Risk of Islanding)
ISO-NE Generator Notification Process will be required for applications that are greater than 1MW
but less than 5MW (ie PP5-1 or GNF) and a Proposed Plan Application (PPA) along with supporting Transmission System Impact Study (TSIS) will be required for applications 5MW or greater in size single or potentially in aggregate Size of project based on nameplate rating of
system
These requirements will add time to the DG Interconnection Process if there is an ASO hold If so
the DSIS will be placed on hold until the ISO-NE approval or determination is known likely at a point during the DSIS process
Interconnection Service Agreement (ISA) provided after Study completed or an Early ISA could be requested if Detailed Study is required
If substation modifications required Company has 60 BD for Study (MDPU 1320 ndash pg 50) or by mutual agreement if estimated construction cost greater than $1 million
30National Grid | July Interconnection Webinar | July 16 2020
New CEI Structure
Process Improvement
amp Future TopicsWill Kern
06
32National Grid | July Interconnection Webinar | July 16 2020
Process Improvement amp Future Topics
Potential webinar topics
Verizon initiatives
Hosting Capacity Maps
Metering
Mike Porcaro as Ombudsperson
Questions
07
34National Grid | July Interconnection Webinar | July 16 2020
Appendix Summary of Resources Documents amp Links
Distributed Generation Website ndash
httpswww9nationalgriduscommasselectrichomeenergyeffdistributed_gen
erationasp
Interconnection Process Resources ndash
httpswww9nationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
Storage Assistance -
httpsngusforcecomsarticleStorage-Assistance
DPU Interim Guidance for ESS -
httpsngusforcecomsarticleHow-to-Add-Energy-Storage-to-an-In-Progress-Application-in-Massachusetts
| [Insert document title] | [Insert date]
13National Grid | July Interconnection Webinar | July 16 2020
Simplified Review Path
Simplified Process
Eligible Facilities Listed Small Inverter
Acknowledge Receipt of Application (3 days)
Review Application for Completeness 10 days
Complete Review of All Screens 15-20 days
Complete Supplemental Review (if needed) NA
Complete Standard Process Initial Review NA
Send Follow-on Studies CostAgreement NA
Complete Impact Study (if needed) NA
Complete Detailed Study (if needed) NA
Send Executable Agreement Done The agreement is part of the application
Total Maximum Days 25 days (30 in the case of failure of Screen 5)
Construction Schedule Varied
Witness Test Within 10 days from receipt of the Certificate of Completion or by mutual agreement
14National Grid | July Interconnection Webinar | July 16 2020
Common Holds or Concerns
Application
The application must match the customerrsquos account name address
account number and meter number
Wait to construct the system until after Conditional Approval is issued
After Conditional Approval
Complete the Service Upgrade Form so the work request can be
created and provided to the wire inspector at the before the inspection
Completion Package
Have Wire Inspection called in before submitting Completion
Documents
15National Grid | July Interconnection Webinar | July 16 2020
Recent Portal Improvements
Expedited Review
ProcessMike Armell
04
17National Grid | July Interconnection Webinar | July 16 2020
Expedited Criteria
Single phase customers with listed single-phase inverter based
systems with power ratings of gt15 kW on a radial feed
Three phase customers with listed three-phase inverter based
systems with power ratings of gt25kW on a radial feed
Any project that did not pass the Simplified process Screens
Non-Simplified projects that do not require an Impact Study
Maximum size supplemental review is based on review of
Screens
18National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Pre-Application (if 500 kW or greater)
Application
Expedited
Engineering Review
Supplemental Review
Conditional Approval (to construct DG system)
Company Construction
Witness Test (where applicable)
Completion Document Review and Meter Set
Authorization to Interconnect
httpswwwnationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
19National Grid | July Interconnection Webinar | July 16 2020
Expedited Review Path
Expedited
Eligible Facilities Listed Inverter DG
Acknowledge Receipt of Application(3 days)
Review Application for Completeness10 days
Complete Review of All Screens25 days
Complete Supplemental Review (if needed)20 days or Standard Process
Send Executable Agreement10 days
Total Maximum Days 4565 days
Construction ScheduleVaried
Notice Witness TestWithin 10 days of receiving Certificate of
Completion or by mutual agreement
If any Screens are not passed the
Company may require a Supplemental Review Agreementbefore providing an Interconnection
Service Agreement
Key threshold if aggregate
generation is less than 67 of minimum load on the
feeder Other Screens review voltage quality reliability and safety to reduce the potential
need for Impact Studies
Relay control system must be well
defined to make SupplementalReview easier
20National Grid | July Interconnection Webinar | July 16 2020
Recent Improvements
Infrastructure List View-Can be found at the bottom of the home
page on the portal
Lists of all feeders in each jurisdiction (MA NY RI) that can be
sorted by Feeder Name Substation Transformer Name
Operating District Connected DG kWAC Pending DG kWAC
whether or not the Feeders are Registered with FERC
Link to
guide httpsngusforcecomservletservletFileDownloadfile=
0150W00000FKqNQ
Developers have access in portal to view muni WO for completion
21National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
For most Expedited applications a ldquoCommissioning Memordquo on
a company letterhead is provided in lieu of Witness Test
Commissioning test should consist of the following
1 Two (2) second shutdown when disconnect open test
2 Five (5) minutes before restart when disconnect is closed test
3 Confirm system matches As-built (include most recent revision
date of as built provided)
4 List the inverter relay frequency (Hz) and trip time settings
22National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
As Built Must be PE stamped and signed dated by person
that performed the commissioning test (Signature date
should match date of test)
Pictures Meter picture should show permanent plaque
(visible at eye level) that includes a warning about generator
installed
Pictures If the AC utility disconnect switch is not grouped
with and adjacent to the utility revenue meter then a
permanent plaque (visible at eye level) that clearly identifies
the location of the AC utility disconnect is required
23National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
Evidence of insurance is required for all projects gt 60kW in
MA and gt50kW in RI Refer to the ISA and Interconnection
Tariff for insurance requirements
Qualifying Facility documents
Schedule A (P-Rate) required for all QF projects
W9 (Only for projects gt60kW)
ACH (Only for projects gt60kW)
Supplier Enrollment Form (Only for projects gt60kW)
24National Grid | July Interconnection Webinar | July 16 2020
Metering Reminder
Projects greater than 60kW in MA and greater than 25kW in RI
require interval metering (Wireless or phone line)
Company needs a 4G wireless signal test on a Verizon network in
order to provide wireless metering
Phone lines must be dedicated and terminated at the meter
location Line must be 100 copper Fiber lines will not
communicate properly
These meters are long lead time items and prep time can be 6-8
weeks so it is important to work through this with your job owner
well in advance of when you intend to seek Authority to
Interconnect
Wireless test form httpsngusforcecomsarticleMA-
Interconnection-Documents
Standard Review
ProcessNat Mahattanasakul
05
26National Grid | July Interconnection Webinar | July 16 2020
Standard Criteria
Applies to
Projects that require Distribution System Impact Study (DSIS)
Large-scale DG projects
Generally greater than 500 kW but project specific
DG projects requiring System Modifications at the substation level
Non-listed inverters or generators other than PV
Induction Synchronous Asynchronous
Most CHP systems
All projects that do not qualify for the Simplified or Expedited process
27National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Pre-Application
Application
Standard
Engineering Review
Impact StudyDetailed Study
Conditional Approval (to construct DG system)
Company Construction
Witness Test
Authorization to Interconnect
httpsngusforcecomsarticleMA-Complex-Standard-Application-Process
28National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Standard
Eligible Facilities Any DG
Acknowledge Receipt of Application (3 days)
Review Application for Completeness 10 days
Complete Standard Process Initial Review 20 days
Send Impact Study Agreement 5 days
Complete Impact Study 55-60 days or by mutual agreement depending on complexity
Complete Detailed Study (if needed) 30 ndash 60 days or by mutual agreement depending on complexity
Send Executable Agreement (ISA) 15 days
Total Maximum Days 135160 days (200 days for Standard Complex)
Construction Schedule Varied
Witness Test10 days from the Companyrsquos approval of WT procedures or
by mutual agreement
29National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Impact Study will determine the level of impact on the Companyrsquos EPS and the required System
Modifications
Impact and Detailed Study (if applicable) will determine System Modifications required and cost
(Risk of Islanding)
ISO-NE Generator Notification Process will be required for applications that are greater than 1MW
but less than 5MW (ie PP5-1 or GNF) and a Proposed Plan Application (PPA) along with supporting Transmission System Impact Study (TSIS) will be required for applications 5MW or greater in size single or potentially in aggregate Size of project based on nameplate rating of
system
These requirements will add time to the DG Interconnection Process if there is an ASO hold If so
the DSIS will be placed on hold until the ISO-NE approval or determination is known likely at a point during the DSIS process
Interconnection Service Agreement (ISA) provided after Study completed or an Early ISA could be requested if Detailed Study is required
If substation modifications required Company has 60 BD for Study (MDPU 1320 ndash pg 50) or by mutual agreement if estimated construction cost greater than $1 million
30National Grid | July Interconnection Webinar | July 16 2020
New CEI Structure
Process Improvement
amp Future TopicsWill Kern
06
32National Grid | July Interconnection Webinar | July 16 2020
Process Improvement amp Future Topics
Potential webinar topics
Verizon initiatives
Hosting Capacity Maps
Metering
Mike Porcaro as Ombudsperson
Questions
07
34National Grid | July Interconnection Webinar | July 16 2020
Appendix Summary of Resources Documents amp Links
Distributed Generation Website ndash
httpswww9nationalgriduscommasselectrichomeenergyeffdistributed_gen
erationasp
Interconnection Process Resources ndash
httpswww9nationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
Storage Assistance -
httpsngusforcecomsarticleStorage-Assistance
DPU Interim Guidance for ESS -
httpsngusforcecomsarticleHow-to-Add-Energy-Storage-to-an-In-Progress-Application-in-Massachusetts
| [Insert document title] | [Insert date]
14National Grid | July Interconnection Webinar | July 16 2020
Common Holds or Concerns
Application
The application must match the customerrsquos account name address
account number and meter number
Wait to construct the system until after Conditional Approval is issued
After Conditional Approval
Complete the Service Upgrade Form so the work request can be
created and provided to the wire inspector at the before the inspection
Completion Package
Have Wire Inspection called in before submitting Completion
Documents
15National Grid | July Interconnection Webinar | July 16 2020
Recent Portal Improvements
Expedited Review
ProcessMike Armell
04
17National Grid | July Interconnection Webinar | July 16 2020
Expedited Criteria
Single phase customers with listed single-phase inverter based
systems with power ratings of gt15 kW on a radial feed
Three phase customers with listed three-phase inverter based
systems with power ratings of gt25kW on a radial feed
Any project that did not pass the Simplified process Screens
Non-Simplified projects that do not require an Impact Study
Maximum size supplemental review is based on review of
Screens
18National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Pre-Application (if 500 kW or greater)
Application
Expedited
Engineering Review
Supplemental Review
Conditional Approval (to construct DG system)
Company Construction
Witness Test (where applicable)
Completion Document Review and Meter Set
Authorization to Interconnect
httpswwwnationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
19National Grid | July Interconnection Webinar | July 16 2020
Expedited Review Path
Expedited
Eligible Facilities Listed Inverter DG
Acknowledge Receipt of Application(3 days)
Review Application for Completeness10 days
Complete Review of All Screens25 days
Complete Supplemental Review (if needed)20 days or Standard Process
Send Executable Agreement10 days
Total Maximum Days 4565 days
Construction ScheduleVaried
Notice Witness TestWithin 10 days of receiving Certificate of
Completion or by mutual agreement
If any Screens are not passed the
Company may require a Supplemental Review Agreementbefore providing an Interconnection
Service Agreement
Key threshold if aggregate
generation is less than 67 of minimum load on the
feeder Other Screens review voltage quality reliability and safety to reduce the potential
need for Impact Studies
Relay control system must be well
defined to make SupplementalReview easier
20National Grid | July Interconnection Webinar | July 16 2020
Recent Improvements
Infrastructure List View-Can be found at the bottom of the home
page on the portal
Lists of all feeders in each jurisdiction (MA NY RI) that can be
sorted by Feeder Name Substation Transformer Name
Operating District Connected DG kWAC Pending DG kWAC
whether or not the Feeders are Registered with FERC
Link to
guide httpsngusforcecomservletservletFileDownloadfile=
0150W00000FKqNQ
Developers have access in portal to view muni WO for completion
21National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
For most Expedited applications a ldquoCommissioning Memordquo on
a company letterhead is provided in lieu of Witness Test
Commissioning test should consist of the following
1 Two (2) second shutdown when disconnect open test
2 Five (5) minutes before restart when disconnect is closed test
3 Confirm system matches As-built (include most recent revision
date of as built provided)
4 List the inverter relay frequency (Hz) and trip time settings
22National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
As Built Must be PE stamped and signed dated by person
that performed the commissioning test (Signature date
should match date of test)
Pictures Meter picture should show permanent plaque
(visible at eye level) that includes a warning about generator
installed
Pictures If the AC utility disconnect switch is not grouped
with and adjacent to the utility revenue meter then a
permanent plaque (visible at eye level) that clearly identifies
the location of the AC utility disconnect is required
23National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
Evidence of insurance is required for all projects gt 60kW in
MA and gt50kW in RI Refer to the ISA and Interconnection
Tariff for insurance requirements
Qualifying Facility documents
Schedule A (P-Rate) required for all QF projects
W9 (Only for projects gt60kW)
ACH (Only for projects gt60kW)
Supplier Enrollment Form (Only for projects gt60kW)
24National Grid | July Interconnection Webinar | July 16 2020
Metering Reminder
Projects greater than 60kW in MA and greater than 25kW in RI
require interval metering (Wireless or phone line)
Company needs a 4G wireless signal test on a Verizon network in
order to provide wireless metering
Phone lines must be dedicated and terminated at the meter
location Line must be 100 copper Fiber lines will not
communicate properly
These meters are long lead time items and prep time can be 6-8
weeks so it is important to work through this with your job owner
well in advance of when you intend to seek Authority to
Interconnect
Wireless test form httpsngusforcecomsarticleMA-
Interconnection-Documents
Standard Review
ProcessNat Mahattanasakul
05
26National Grid | July Interconnection Webinar | July 16 2020
Standard Criteria
Applies to
Projects that require Distribution System Impact Study (DSIS)
Large-scale DG projects
Generally greater than 500 kW but project specific
DG projects requiring System Modifications at the substation level
Non-listed inverters or generators other than PV
Induction Synchronous Asynchronous
Most CHP systems
All projects that do not qualify for the Simplified or Expedited process
27National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Pre-Application
Application
Standard
Engineering Review
Impact StudyDetailed Study
Conditional Approval (to construct DG system)
Company Construction
Witness Test
Authorization to Interconnect
httpsngusforcecomsarticleMA-Complex-Standard-Application-Process
28National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Standard
Eligible Facilities Any DG
Acknowledge Receipt of Application (3 days)
Review Application for Completeness 10 days
Complete Standard Process Initial Review 20 days
Send Impact Study Agreement 5 days
Complete Impact Study 55-60 days or by mutual agreement depending on complexity
Complete Detailed Study (if needed) 30 ndash 60 days or by mutual agreement depending on complexity
Send Executable Agreement (ISA) 15 days
Total Maximum Days 135160 days (200 days for Standard Complex)
Construction Schedule Varied
Witness Test10 days from the Companyrsquos approval of WT procedures or
by mutual agreement
29National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Impact Study will determine the level of impact on the Companyrsquos EPS and the required System
Modifications
Impact and Detailed Study (if applicable) will determine System Modifications required and cost
(Risk of Islanding)
ISO-NE Generator Notification Process will be required for applications that are greater than 1MW
but less than 5MW (ie PP5-1 or GNF) and a Proposed Plan Application (PPA) along with supporting Transmission System Impact Study (TSIS) will be required for applications 5MW or greater in size single or potentially in aggregate Size of project based on nameplate rating of
system
These requirements will add time to the DG Interconnection Process if there is an ASO hold If so
the DSIS will be placed on hold until the ISO-NE approval or determination is known likely at a point during the DSIS process
Interconnection Service Agreement (ISA) provided after Study completed or an Early ISA could be requested if Detailed Study is required
If substation modifications required Company has 60 BD for Study (MDPU 1320 ndash pg 50) or by mutual agreement if estimated construction cost greater than $1 million
30National Grid | July Interconnection Webinar | July 16 2020
New CEI Structure
Process Improvement
amp Future TopicsWill Kern
06
32National Grid | July Interconnection Webinar | July 16 2020
Process Improvement amp Future Topics
Potential webinar topics
Verizon initiatives
Hosting Capacity Maps
Metering
Mike Porcaro as Ombudsperson
Questions
07
34National Grid | July Interconnection Webinar | July 16 2020
Appendix Summary of Resources Documents amp Links
Distributed Generation Website ndash
httpswww9nationalgriduscommasselectrichomeenergyeffdistributed_gen
erationasp
Interconnection Process Resources ndash
httpswww9nationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
Storage Assistance -
httpsngusforcecomsarticleStorage-Assistance
DPU Interim Guidance for ESS -
httpsngusforcecomsarticleHow-to-Add-Energy-Storage-to-an-In-Progress-Application-in-Massachusetts
| [Insert document title] | [Insert date]
15National Grid | July Interconnection Webinar | July 16 2020
Recent Portal Improvements
Expedited Review
ProcessMike Armell
04
17National Grid | July Interconnection Webinar | July 16 2020
Expedited Criteria
Single phase customers with listed single-phase inverter based
systems with power ratings of gt15 kW on a radial feed
Three phase customers with listed three-phase inverter based
systems with power ratings of gt25kW on a radial feed
Any project that did not pass the Simplified process Screens
Non-Simplified projects that do not require an Impact Study
Maximum size supplemental review is based on review of
Screens
18National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Pre-Application (if 500 kW or greater)
Application
Expedited
Engineering Review
Supplemental Review
Conditional Approval (to construct DG system)
Company Construction
Witness Test (where applicable)
Completion Document Review and Meter Set
Authorization to Interconnect
httpswwwnationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
19National Grid | July Interconnection Webinar | July 16 2020
Expedited Review Path
Expedited
Eligible Facilities Listed Inverter DG
Acknowledge Receipt of Application(3 days)
Review Application for Completeness10 days
Complete Review of All Screens25 days
Complete Supplemental Review (if needed)20 days or Standard Process
Send Executable Agreement10 days
Total Maximum Days 4565 days
Construction ScheduleVaried
Notice Witness TestWithin 10 days of receiving Certificate of
Completion or by mutual agreement
If any Screens are not passed the
Company may require a Supplemental Review Agreementbefore providing an Interconnection
Service Agreement
Key threshold if aggregate
generation is less than 67 of minimum load on the
feeder Other Screens review voltage quality reliability and safety to reduce the potential
need for Impact Studies
Relay control system must be well
defined to make SupplementalReview easier
20National Grid | July Interconnection Webinar | July 16 2020
Recent Improvements
Infrastructure List View-Can be found at the bottom of the home
page on the portal
Lists of all feeders in each jurisdiction (MA NY RI) that can be
sorted by Feeder Name Substation Transformer Name
Operating District Connected DG kWAC Pending DG kWAC
whether or not the Feeders are Registered with FERC
Link to
guide httpsngusforcecomservletservletFileDownloadfile=
0150W00000FKqNQ
Developers have access in portal to view muni WO for completion
21National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
For most Expedited applications a ldquoCommissioning Memordquo on
a company letterhead is provided in lieu of Witness Test
Commissioning test should consist of the following
1 Two (2) second shutdown when disconnect open test
2 Five (5) minutes before restart when disconnect is closed test
3 Confirm system matches As-built (include most recent revision
date of as built provided)
4 List the inverter relay frequency (Hz) and trip time settings
22National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
As Built Must be PE stamped and signed dated by person
that performed the commissioning test (Signature date
should match date of test)
Pictures Meter picture should show permanent plaque
(visible at eye level) that includes a warning about generator
installed
Pictures If the AC utility disconnect switch is not grouped
with and adjacent to the utility revenue meter then a
permanent plaque (visible at eye level) that clearly identifies
the location of the AC utility disconnect is required
23National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
Evidence of insurance is required for all projects gt 60kW in
MA and gt50kW in RI Refer to the ISA and Interconnection
Tariff for insurance requirements
Qualifying Facility documents
Schedule A (P-Rate) required for all QF projects
W9 (Only for projects gt60kW)
ACH (Only for projects gt60kW)
Supplier Enrollment Form (Only for projects gt60kW)
24National Grid | July Interconnection Webinar | July 16 2020
Metering Reminder
Projects greater than 60kW in MA and greater than 25kW in RI
require interval metering (Wireless or phone line)
Company needs a 4G wireless signal test on a Verizon network in
order to provide wireless metering
Phone lines must be dedicated and terminated at the meter
location Line must be 100 copper Fiber lines will not
communicate properly
These meters are long lead time items and prep time can be 6-8
weeks so it is important to work through this with your job owner
well in advance of when you intend to seek Authority to
Interconnect
Wireless test form httpsngusforcecomsarticleMA-
Interconnection-Documents
Standard Review
ProcessNat Mahattanasakul
05
26National Grid | July Interconnection Webinar | July 16 2020
Standard Criteria
Applies to
Projects that require Distribution System Impact Study (DSIS)
Large-scale DG projects
Generally greater than 500 kW but project specific
DG projects requiring System Modifications at the substation level
Non-listed inverters or generators other than PV
Induction Synchronous Asynchronous
Most CHP systems
All projects that do not qualify for the Simplified or Expedited process
27National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Pre-Application
Application
Standard
Engineering Review
Impact StudyDetailed Study
Conditional Approval (to construct DG system)
Company Construction
Witness Test
Authorization to Interconnect
httpsngusforcecomsarticleMA-Complex-Standard-Application-Process
28National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Standard
Eligible Facilities Any DG
Acknowledge Receipt of Application (3 days)
Review Application for Completeness 10 days
Complete Standard Process Initial Review 20 days
Send Impact Study Agreement 5 days
Complete Impact Study 55-60 days or by mutual agreement depending on complexity
Complete Detailed Study (if needed) 30 ndash 60 days or by mutual agreement depending on complexity
Send Executable Agreement (ISA) 15 days
Total Maximum Days 135160 days (200 days for Standard Complex)
Construction Schedule Varied
Witness Test10 days from the Companyrsquos approval of WT procedures or
by mutual agreement
29National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Impact Study will determine the level of impact on the Companyrsquos EPS and the required System
Modifications
Impact and Detailed Study (if applicable) will determine System Modifications required and cost
(Risk of Islanding)
ISO-NE Generator Notification Process will be required for applications that are greater than 1MW
but less than 5MW (ie PP5-1 or GNF) and a Proposed Plan Application (PPA) along with supporting Transmission System Impact Study (TSIS) will be required for applications 5MW or greater in size single or potentially in aggregate Size of project based on nameplate rating of
system
These requirements will add time to the DG Interconnection Process if there is an ASO hold If so
the DSIS will be placed on hold until the ISO-NE approval or determination is known likely at a point during the DSIS process
Interconnection Service Agreement (ISA) provided after Study completed or an Early ISA could be requested if Detailed Study is required
If substation modifications required Company has 60 BD for Study (MDPU 1320 ndash pg 50) or by mutual agreement if estimated construction cost greater than $1 million
30National Grid | July Interconnection Webinar | July 16 2020
New CEI Structure
Process Improvement
amp Future TopicsWill Kern
06
32National Grid | July Interconnection Webinar | July 16 2020
Process Improvement amp Future Topics
Potential webinar topics
Verizon initiatives
Hosting Capacity Maps
Metering
Mike Porcaro as Ombudsperson
Questions
07
34National Grid | July Interconnection Webinar | July 16 2020
Appendix Summary of Resources Documents amp Links
Distributed Generation Website ndash
httpswww9nationalgriduscommasselectrichomeenergyeffdistributed_gen
erationasp
Interconnection Process Resources ndash
httpswww9nationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
Storage Assistance -
httpsngusforcecomsarticleStorage-Assistance
DPU Interim Guidance for ESS -
httpsngusforcecomsarticleHow-to-Add-Energy-Storage-to-an-In-Progress-Application-in-Massachusetts
| [Insert document title] | [Insert date]
Expedited Review
ProcessMike Armell
04
17National Grid | July Interconnection Webinar | July 16 2020
Expedited Criteria
Single phase customers with listed single-phase inverter based
systems with power ratings of gt15 kW on a radial feed
Three phase customers with listed three-phase inverter based
systems with power ratings of gt25kW on a radial feed
Any project that did not pass the Simplified process Screens
Non-Simplified projects that do not require an Impact Study
Maximum size supplemental review is based on review of
Screens
18National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Pre-Application (if 500 kW or greater)
Application
Expedited
Engineering Review
Supplemental Review
Conditional Approval (to construct DG system)
Company Construction
Witness Test (where applicable)
Completion Document Review and Meter Set
Authorization to Interconnect
httpswwwnationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
19National Grid | July Interconnection Webinar | July 16 2020
Expedited Review Path
Expedited
Eligible Facilities Listed Inverter DG
Acknowledge Receipt of Application(3 days)
Review Application for Completeness10 days
Complete Review of All Screens25 days
Complete Supplemental Review (if needed)20 days or Standard Process
Send Executable Agreement10 days
Total Maximum Days 4565 days
Construction ScheduleVaried
Notice Witness TestWithin 10 days of receiving Certificate of
Completion or by mutual agreement
If any Screens are not passed the
Company may require a Supplemental Review Agreementbefore providing an Interconnection
Service Agreement
Key threshold if aggregate
generation is less than 67 of minimum load on the
feeder Other Screens review voltage quality reliability and safety to reduce the potential
need for Impact Studies
Relay control system must be well
defined to make SupplementalReview easier
20National Grid | July Interconnection Webinar | July 16 2020
Recent Improvements
Infrastructure List View-Can be found at the bottom of the home
page on the portal
Lists of all feeders in each jurisdiction (MA NY RI) that can be
sorted by Feeder Name Substation Transformer Name
Operating District Connected DG kWAC Pending DG kWAC
whether or not the Feeders are Registered with FERC
Link to
guide httpsngusforcecomservletservletFileDownloadfile=
0150W00000FKqNQ
Developers have access in portal to view muni WO for completion
21National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
For most Expedited applications a ldquoCommissioning Memordquo on
a company letterhead is provided in lieu of Witness Test
Commissioning test should consist of the following
1 Two (2) second shutdown when disconnect open test
2 Five (5) minutes before restart when disconnect is closed test
3 Confirm system matches As-built (include most recent revision
date of as built provided)
4 List the inverter relay frequency (Hz) and trip time settings
22National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
As Built Must be PE stamped and signed dated by person
that performed the commissioning test (Signature date
should match date of test)
Pictures Meter picture should show permanent plaque
(visible at eye level) that includes a warning about generator
installed
Pictures If the AC utility disconnect switch is not grouped
with and adjacent to the utility revenue meter then a
permanent plaque (visible at eye level) that clearly identifies
the location of the AC utility disconnect is required
23National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
Evidence of insurance is required for all projects gt 60kW in
MA and gt50kW in RI Refer to the ISA and Interconnection
Tariff for insurance requirements
Qualifying Facility documents
Schedule A (P-Rate) required for all QF projects
W9 (Only for projects gt60kW)
ACH (Only for projects gt60kW)
Supplier Enrollment Form (Only for projects gt60kW)
24National Grid | July Interconnection Webinar | July 16 2020
Metering Reminder
Projects greater than 60kW in MA and greater than 25kW in RI
require interval metering (Wireless or phone line)
Company needs a 4G wireless signal test on a Verizon network in
order to provide wireless metering
Phone lines must be dedicated and terminated at the meter
location Line must be 100 copper Fiber lines will not
communicate properly
These meters are long lead time items and prep time can be 6-8
weeks so it is important to work through this with your job owner
well in advance of when you intend to seek Authority to
Interconnect
Wireless test form httpsngusforcecomsarticleMA-
Interconnection-Documents
Standard Review
ProcessNat Mahattanasakul
05
26National Grid | July Interconnection Webinar | July 16 2020
Standard Criteria
Applies to
Projects that require Distribution System Impact Study (DSIS)
Large-scale DG projects
Generally greater than 500 kW but project specific
DG projects requiring System Modifications at the substation level
Non-listed inverters or generators other than PV
Induction Synchronous Asynchronous
Most CHP systems
All projects that do not qualify for the Simplified or Expedited process
27National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Pre-Application
Application
Standard
Engineering Review
Impact StudyDetailed Study
Conditional Approval (to construct DG system)
Company Construction
Witness Test
Authorization to Interconnect
httpsngusforcecomsarticleMA-Complex-Standard-Application-Process
28National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Standard
Eligible Facilities Any DG
Acknowledge Receipt of Application (3 days)
Review Application for Completeness 10 days
Complete Standard Process Initial Review 20 days
Send Impact Study Agreement 5 days
Complete Impact Study 55-60 days or by mutual agreement depending on complexity
Complete Detailed Study (if needed) 30 ndash 60 days or by mutual agreement depending on complexity
Send Executable Agreement (ISA) 15 days
Total Maximum Days 135160 days (200 days for Standard Complex)
Construction Schedule Varied
Witness Test10 days from the Companyrsquos approval of WT procedures or
by mutual agreement
29National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Impact Study will determine the level of impact on the Companyrsquos EPS and the required System
Modifications
Impact and Detailed Study (if applicable) will determine System Modifications required and cost
(Risk of Islanding)
ISO-NE Generator Notification Process will be required for applications that are greater than 1MW
but less than 5MW (ie PP5-1 or GNF) and a Proposed Plan Application (PPA) along with supporting Transmission System Impact Study (TSIS) will be required for applications 5MW or greater in size single or potentially in aggregate Size of project based on nameplate rating of
system
These requirements will add time to the DG Interconnection Process if there is an ASO hold If so
the DSIS will be placed on hold until the ISO-NE approval or determination is known likely at a point during the DSIS process
Interconnection Service Agreement (ISA) provided after Study completed or an Early ISA could be requested if Detailed Study is required
If substation modifications required Company has 60 BD for Study (MDPU 1320 ndash pg 50) or by mutual agreement if estimated construction cost greater than $1 million
30National Grid | July Interconnection Webinar | July 16 2020
New CEI Structure
Process Improvement
amp Future TopicsWill Kern
06
32National Grid | July Interconnection Webinar | July 16 2020
Process Improvement amp Future Topics
Potential webinar topics
Verizon initiatives
Hosting Capacity Maps
Metering
Mike Porcaro as Ombudsperson
Questions
07
34National Grid | July Interconnection Webinar | July 16 2020
Appendix Summary of Resources Documents amp Links
Distributed Generation Website ndash
httpswww9nationalgriduscommasselectrichomeenergyeffdistributed_gen
erationasp
Interconnection Process Resources ndash
httpswww9nationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
Storage Assistance -
httpsngusforcecomsarticleStorage-Assistance
DPU Interim Guidance for ESS -
httpsngusforcecomsarticleHow-to-Add-Energy-Storage-to-an-In-Progress-Application-in-Massachusetts
| [Insert document title] | [Insert date]
17National Grid | July Interconnection Webinar | July 16 2020
Expedited Criteria
Single phase customers with listed single-phase inverter based
systems with power ratings of gt15 kW on a radial feed
Three phase customers with listed three-phase inverter based
systems with power ratings of gt25kW on a radial feed
Any project that did not pass the Simplified process Screens
Non-Simplified projects that do not require an Impact Study
Maximum size supplemental review is based on review of
Screens
18National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Pre-Application (if 500 kW or greater)
Application
Expedited
Engineering Review
Supplemental Review
Conditional Approval (to construct DG system)
Company Construction
Witness Test (where applicable)
Completion Document Review and Meter Set
Authorization to Interconnect
httpswwwnationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
19National Grid | July Interconnection Webinar | July 16 2020
Expedited Review Path
Expedited
Eligible Facilities Listed Inverter DG
Acknowledge Receipt of Application(3 days)
Review Application for Completeness10 days
Complete Review of All Screens25 days
Complete Supplemental Review (if needed)20 days or Standard Process
Send Executable Agreement10 days
Total Maximum Days 4565 days
Construction ScheduleVaried
Notice Witness TestWithin 10 days of receiving Certificate of
Completion or by mutual agreement
If any Screens are not passed the
Company may require a Supplemental Review Agreementbefore providing an Interconnection
Service Agreement
Key threshold if aggregate
generation is less than 67 of minimum load on the
feeder Other Screens review voltage quality reliability and safety to reduce the potential
need for Impact Studies
Relay control system must be well
defined to make SupplementalReview easier
20National Grid | July Interconnection Webinar | July 16 2020
Recent Improvements
Infrastructure List View-Can be found at the bottom of the home
page on the portal
Lists of all feeders in each jurisdiction (MA NY RI) that can be
sorted by Feeder Name Substation Transformer Name
Operating District Connected DG kWAC Pending DG kWAC
whether or not the Feeders are Registered with FERC
Link to
guide httpsngusforcecomservletservletFileDownloadfile=
0150W00000FKqNQ
Developers have access in portal to view muni WO for completion
21National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
For most Expedited applications a ldquoCommissioning Memordquo on
a company letterhead is provided in lieu of Witness Test
Commissioning test should consist of the following
1 Two (2) second shutdown when disconnect open test
2 Five (5) minutes before restart when disconnect is closed test
3 Confirm system matches As-built (include most recent revision
date of as built provided)
4 List the inverter relay frequency (Hz) and trip time settings
22National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
As Built Must be PE stamped and signed dated by person
that performed the commissioning test (Signature date
should match date of test)
Pictures Meter picture should show permanent plaque
(visible at eye level) that includes a warning about generator
installed
Pictures If the AC utility disconnect switch is not grouped
with and adjacent to the utility revenue meter then a
permanent plaque (visible at eye level) that clearly identifies
the location of the AC utility disconnect is required
23National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
Evidence of insurance is required for all projects gt 60kW in
MA and gt50kW in RI Refer to the ISA and Interconnection
Tariff for insurance requirements
Qualifying Facility documents
Schedule A (P-Rate) required for all QF projects
W9 (Only for projects gt60kW)
ACH (Only for projects gt60kW)
Supplier Enrollment Form (Only for projects gt60kW)
24National Grid | July Interconnection Webinar | July 16 2020
Metering Reminder
Projects greater than 60kW in MA and greater than 25kW in RI
require interval metering (Wireless or phone line)
Company needs a 4G wireless signal test on a Verizon network in
order to provide wireless metering
Phone lines must be dedicated and terminated at the meter
location Line must be 100 copper Fiber lines will not
communicate properly
These meters are long lead time items and prep time can be 6-8
weeks so it is important to work through this with your job owner
well in advance of when you intend to seek Authority to
Interconnect
Wireless test form httpsngusforcecomsarticleMA-
Interconnection-Documents
Standard Review
ProcessNat Mahattanasakul
05
26National Grid | July Interconnection Webinar | July 16 2020
Standard Criteria
Applies to
Projects that require Distribution System Impact Study (DSIS)
Large-scale DG projects
Generally greater than 500 kW but project specific
DG projects requiring System Modifications at the substation level
Non-listed inverters or generators other than PV
Induction Synchronous Asynchronous
Most CHP systems
All projects that do not qualify for the Simplified or Expedited process
27National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Pre-Application
Application
Standard
Engineering Review
Impact StudyDetailed Study
Conditional Approval (to construct DG system)
Company Construction
Witness Test
Authorization to Interconnect
httpsngusforcecomsarticleMA-Complex-Standard-Application-Process
28National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Standard
Eligible Facilities Any DG
Acknowledge Receipt of Application (3 days)
Review Application for Completeness 10 days
Complete Standard Process Initial Review 20 days
Send Impact Study Agreement 5 days
Complete Impact Study 55-60 days or by mutual agreement depending on complexity
Complete Detailed Study (if needed) 30 ndash 60 days or by mutual agreement depending on complexity
Send Executable Agreement (ISA) 15 days
Total Maximum Days 135160 days (200 days for Standard Complex)
Construction Schedule Varied
Witness Test10 days from the Companyrsquos approval of WT procedures or
by mutual agreement
29National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Impact Study will determine the level of impact on the Companyrsquos EPS and the required System
Modifications
Impact and Detailed Study (if applicable) will determine System Modifications required and cost
(Risk of Islanding)
ISO-NE Generator Notification Process will be required for applications that are greater than 1MW
but less than 5MW (ie PP5-1 or GNF) and a Proposed Plan Application (PPA) along with supporting Transmission System Impact Study (TSIS) will be required for applications 5MW or greater in size single or potentially in aggregate Size of project based on nameplate rating of
system
These requirements will add time to the DG Interconnection Process if there is an ASO hold If so
the DSIS will be placed on hold until the ISO-NE approval or determination is known likely at a point during the DSIS process
Interconnection Service Agreement (ISA) provided after Study completed or an Early ISA could be requested if Detailed Study is required
If substation modifications required Company has 60 BD for Study (MDPU 1320 ndash pg 50) or by mutual agreement if estimated construction cost greater than $1 million
30National Grid | July Interconnection Webinar | July 16 2020
New CEI Structure
Process Improvement
amp Future TopicsWill Kern
06
32National Grid | July Interconnection Webinar | July 16 2020
Process Improvement amp Future Topics
Potential webinar topics
Verizon initiatives
Hosting Capacity Maps
Metering
Mike Porcaro as Ombudsperson
Questions
07
34National Grid | July Interconnection Webinar | July 16 2020
Appendix Summary of Resources Documents amp Links
Distributed Generation Website ndash
httpswww9nationalgriduscommasselectrichomeenergyeffdistributed_gen
erationasp
Interconnection Process Resources ndash
httpswww9nationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
Storage Assistance -
httpsngusforcecomsarticleStorage-Assistance
DPU Interim Guidance for ESS -
httpsngusforcecomsarticleHow-to-Add-Energy-Storage-to-an-In-Progress-Application-in-Massachusetts
| [Insert document title] | [Insert date]
18National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Pre-Application (if 500 kW or greater)
Application
Expedited
Engineering Review
Supplemental Review
Conditional Approval (to construct DG system)
Company Construction
Witness Test (where applicable)
Completion Document Review and Meter Set
Authorization to Interconnect
httpswwwnationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
19National Grid | July Interconnection Webinar | July 16 2020
Expedited Review Path
Expedited
Eligible Facilities Listed Inverter DG
Acknowledge Receipt of Application(3 days)
Review Application for Completeness10 days
Complete Review of All Screens25 days
Complete Supplemental Review (if needed)20 days or Standard Process
Send Executable Agreement10 days
Total Maximum Days 4565 days
Construction ScheduleVaried
Notice Witness TestWithin 10 days of receiving Certificate of
Completion or by mutual agreement
If any Screens are not passed the
Company may require a Supplemental Review Agreementbefore providing an Interconnection
Service Agreement
Key threshold if aggregate
generation is less than 67 of minimum load on the
feeder Other Screens review voltage quality reliability and safety to reduce the potential
need for Impact Studies
Relay control system must be well
defined to make SupplementalReview easier
20National Grid | July Interconnection Webinar | July 16 2020
Recent Improvements
Infrastructure List View-Can be found at the bottom of the home
page on the portal
Lists of all feeders in each jurisdiction (MA NY RI) that can be
sorted by Feeder Name Substation Transformer Name
Operating District Connected DG kWAC Pending DG kWAC
whether or not the Feeders are Registered with FERC
Link to
guide httpsngusforcecomservletservletFileDownloadfile=
0150W00000FKqNQ
Developers have access in portal to view muni WO for completion
21National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
For most Expedited applications a ldquoCommissioning Memordquo on
a company letterhead is provided in lieu of Witness Test
Commissioning test should consist of the following
1 Two (2) second shutdown when disconnect open test
2 Five (5) minutes before restart when disconnect is closed test
3 Confirm system matches As-built (include most recent revision
date of as built provided)
4 List the inverter relay frequency (Hz) and trip time settings
22National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
As Built Must be PE stamped and signed dated by person
that performed the commissioning test (Signature date
should match date of test)
Pictures Meter picture should show permanent plaque
(visible at eye level) that includes a warning about generator
installed
Pictures If the AC utility disconnect switch is not grouped
with and adjacent to the utility revenue meter then a
permanent plaque (visible at eye level) that clearly identifies
the location of the AC utility disconnect is required
23National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
Evidence of insurance is required for all projects gt 60kW in
MA and gt50kW in RI Refer to the ISA and Interconnection
Tariff for insurance requirements
Qualifying Facility documents
Schedule A (P-Rate) required for all QF projects
W9 (Only for projects gt60kW)
ACH (Only for projects gt60kW)
Supplier Enrollment Form (Only for projects gt60kW)
24National Grid | July Interconnection Webinar | July 16 2020
Metering Reminder
Projects greater than 60kW in MA and greater than 25kW in RI
require interval metering (Wireless or phone line)
Company needs a 4G wireless signal test on a Verizon network in
order to provide wireless metering
Phone lines must be dedicated and terminated at the meter
location Line must be 100 copper Fiber lines will not
communicate properly
These meters are long lead time items and prep time can be 6-8
weeks so it is important to work through this with your job owner
well in advance of when you intend to seek Authority to
Interconnect
Wireless test form httpsngusforcecomsarticleMA-
Interconnection-Documents
Standard Review
ProcessNat Mahattanasakul
05
26National Grid | July Interconnection Webinar | July 16 2020
Standard Criteria
Applies to
Projects that require Distribution System Impact Study (DSIS)
Large-scale DG projects
Generally greater than 500 kW but project specific
DG projects requiring System Modifications at the substation level
Non-listed inverters or generators other than PV
Induction Synchronous Asynchronous
Most CHP systems
All projects that do not qualify for the Simplified or Expedited process
27National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Pre-Application
Application
Standard
Engineering Review
Impact StudyDetailed Study
Conditional Approval (to construct DG system)
Company Construction
Witness Test
Authorization to Interconnect
httpsngusforcecomsarticleMA-Complex-Standard-Application-Process
28National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Standard
Eligible Facilities Any DG
Acknowledge Receipt of Application (3 days)
Review Application for Completeness 10 days
Complete Standard Process Initial Review 20 days
Send Impact Study Agreement 5 days
Complete Impact Study 55-60 days or by mutual agreement depending on complexity
Complete Detailed Study (if needed) 30 ndash 60 days or by mutual agreement depending on complexity
Send Executable Agreement (ISA) 15 days
Total Maximum Days 135160 days (200 days for Standard Complex)
Construction Schedule Varied
Witness Test10 days from the Companyrsquos approval of WT procedures or
by mutual agreement
29National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Impact Study will determine the level of impact on the Companyrsquos EPS and the required System
Modifications
Impact and Detailed Study (if applicable) will determine System Modifications required and cost
(Risk of Islanding)
ISO-NE Generator Notification Process will be required for applications that are greater than 1MW
but less than 5MW (ie PP5-1 or GNF) and a Proposed Plan Application (PPA) along with supporting Transmission System Impact Study (TSIS) will be required for applications 5MW or greater in size single or potentially in aggregate Size of project based on nameplate rating of
system
These requirements will add time to the DG Interconnection Process if there is an ASO hold If so
the DSIS will be placed on hold until the ISO-NE approval or determination is known likely at a point during the DSIS process
Interconnection Service Agreement (ISA) provided after Study completed or an Early ISA could be requested if Detailed Study is required
If substation modifications required Company has 60 BD for Study (MDPU 1320 ndash pg 50) or by mutual agreement if estimated construction cost greater than $1 million
30National Grid | July Interconnection Webinar | July 16 2020
New CEI Structure
Process Improvement
amp Future TopicsWill Kern
06
32National Grid | July Interconnection Webinar | July 16 2020
Process Improvement amp Future Topics
Potential webinar topics
Verizon initiatives
Hosting Capacity Maps
Metering
Mike Porcaro as Ombudsperson
Questions
07
34National Grid | July Interconnection Webinar | July 16 2020
Appendix Summary of Resources Documents amp Links
Distributed Generation Website ndash
httpswww9nationalgriduscommasselectrichomeenergyeffdistributed_gen
erationasp
Interconnection Process Resources ndash
httpswww9nationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
Storage Assistance -
httpsngusforcecomsarticleStorage-Assistance
DPU Interim Guidance for ESS -
httpsngusforcecomsarticleHow-to-Add-Energy-Storage-to-an-In-Progress-Application-in-Massachusetts
| [Insert document title] | [Insert date]
19National Grid | July Interconnection Webinar | July 16 2020
Expedited Review Path
Expedited
Eligible Facilities Listed Inverter DG
Acknowledge Receipt of Application(3 days)
Review Application for Completeness10 days
Complete Review of All Screens25 days
Complete Supplemental Review (if needed)20 days or Standard Process
Send Executable Agreement10 days
Total Maximum Days 4565 days
Construction ScheduleVaried
Notice Witness TestWithin 10 days of receiving Certificate of
Completion or by mutual agreement
If any Screens are not passed the
Company may require a Supplemental Review Agreementbefore providing an Interconnection
Service Agreement
Key threshold if aggregate
generation is less than 67 of minimum load on the
feeder Other Screens review voltage quality reliability and safety to reduce the potential
need for Impact Studies
Relay control system must be well
defined to make SupplementalReview easier
20National Grid | July Interconnection Webinar | July 16 2020
Recent Improvements
Infrastructure List View-Can be found at the bottom of the home
page on the portal
Lists of all feeders in each jurisdiction (MA NY RI) that can be
sorted by Feeder Name Substation Transformer Name
Operating District Connected DG kWAC Pending DG kWAC
whether or not the Feeders are Registered with FERC
Link to
guide httpsngusforcecomservletservletFileDownloadfile=
0150W00000FKqNQ
Developers have access in portal to view muni WO for completion
21National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
For most Expedited applications a ldquoCommissioning Memordquo on
a company letterhead is provided in lieu of Witness Test
Commissioning test should consist of the following
1 Two (2) second shutdown when disconnect open test
2 Five (5) minutes before restart when disconnect is closed test
3 Confirm system matches As-built (include most recent revision
date of as built provided)
4 List the inverter relay frequency (Hz) and trip time settings
22National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
As Built Must be PE stamped and signed dated by person
that performed the commissioning test (Signature date
should match date of test)
Pictures Meter picture should show permanent plaque
(visible at eye level) that includes a warning about generator
installed
Pictures If the AC utility disconnect switch is not grouped
with and adjacent to the utility revenue meter then a
permanent plaque (visible at eye level) that clearly identifies
the location of the AC utility disconnect is required
23National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
Evidence of insurance is required for all projects gt 60kW in
MA and gt50kW in RI Refer to the ISA and Interconnection
Tariff for insurance requirements
Qualifying Facility documents
Schedule A (P-Rate) required for all QF projects
W9 (Only for projects gt60kW)
ACH (Only for projects gt60kW)
Supplier Enrollment Form (Only for projects gt60kW)
24National Grid | July Interconnection Webinar | July 16 2020
Metering Reminder
Projects greater than 60kW in MA and greater than 25kW in RI
require interval metering (Wireless or phone line)
Company needs a 4G wireless signal test on a Verizon network in
order to provide wireless metering
Phone lines must be dedicated and terminated at the meter
location Line must be 100 copper Fiber lines will not
communicate properly
These meters are long lead time items and prep time can be 6-8
weeks so it is important to work through this with your job owner
well in advance of when you intend to seek Authority to
Interconnect
Wireless test form httpsngusforcecomsarticleMA-
Interconnection-Documents
Standard Review
ProcessNat Mahattanasakul
05
26National Grid | July Interconnection Webinar | July 16 2020
Standard Criteria
Applies to
Projects that require Distribution System Impact Study (DSIS)
Large-scale DG projects
Generally greater than 500 kW but project specific
DG projects requiring System Modifications at the substation level
Non-listed inverters or generators other than PV
Induction Synchronous Asynchronous
Most CHP systems
All projects that do not qualify for the Simplified or Expedited process
27National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Pre-Application
Application
Standard
Engineering Review
Impact StudyDetailed Study
Conditional Approval (to construct DG system)
Company Construction
Witness Test
Authorization to Interconnect
httpsngusforcecomsarticleMA-Complex-Standard-Application-Process
28National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Standard
Eligible Facilities Any DG
Acknowledge Receipt of Application (3 days)
Review Application for Completeness 10 days
Complete Standard Process Initial Review 20 days
Send Impact Study Agreement 5 days
Complete Impact Study 55-60 days or by mutual agreement depending on complexity
Complete Detailed Study (if needed) 30 ndash 60 days or by mutual agreement depending on complexity
Send Executable Agreement (ISA) 15 days
Total Maximum Days 135160 days (200 days for Standard Complex)
Construction Schedule Varied
Witness Test10 days from the Companyrsquos approval of WT procedures or
by mutual agreement
29National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Impact Study will determine the level of impact on the Companyrsquos EPS and the required System
Modifications
Impact and Detailed Study (if applicable) will determine System Modifications required and cost
(Risk of Islanding)
ISO-NE Generator Notification Process will be required for applications that are greater than 1MW
but less than 5MW (ie PP5-1 or GNF) and a Proposed Plan Application (PPA) along with supporting Transmission System Impact Study (TSIS) will be required for applications 5MW or greater in size single or potentially in aggregate Size of project based on nameplate rating of
system
These requirements will add time to the DG Interconnection Process if there is an ASO hold If so
the DSIS will be placed on hold until the ISO-NE approval or determination is known likely at a point during the DSIS process
Interconnection Service Agreement (ISA) provided after Study completed or an Early ISA could be requested if Detailed Study is required
If substation modifications required Company has 60 BD for Study (MDPU 1320 ndash pg 50) or by mutual agreement if estimated construction cost greater than $1 million
30National Grid | July Interconnection Webinar | July 16 2020
New CEI Structure
Process Improvement
amp Future TopicsWill Kern
06
32National Grid | July Interconnection Webinar | July 16 2020
Process Improvement amp Future Topics
Potential webinar topics
Verizon initiatives
Hosting Capacity Maps
Metering
Mike Porcaro as Ombudsperson
Questions
07
34National Grid | July Interconnection Webinar | July 16 2020
Appendix Summary of Resources Documents amp Links
Distributed Generation Website ndash
httpswww9nationalgriduscommasselectrichomeenergyeffdistributed_gen
erationasp
Interconnection Process Resources ndash
httpswww9nationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
Storage Assistance -
httpsngusforcecomsarticleStorage-Assistance
DPU Interim Guidance for ESS -
httpsngusforcecomsarticleHow-to-Add-Energy-Storage-to-an-In-Progress-Application-in-Massachusetts
| [Insert document title] | [Insert date]
20National Grid | July Interconnection Webinar | July 16 2020
Recent Improvements
Infrastructure List View-Can be found at the bottom of the home
page on the portal
Lists of all feeders in each jurisdiction (MA NY RI) that can be
sorted by Feeder Name Substation Transformer Name
Operating District Connected DG kWAC Pending DG kWAC
whether or not the Feeders are Registered with FERC
Link to
guide httpsngusforcecomservletservletFileDownloadfile=
0150W00000FKqNQ
Developers have access in portal to view muni WO for completion
21National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
For most Expedited applications a ldquoCommissioning Memordquo on
a company letterhead is provided in lieu of Witness Test
Commissioning test should consist of the following
1 Two (2) second shutdown when disconnect open test
2 Five (5) minutes before restart when disconnect is closed test
3 Confirm system matches As-built (include most recent revision
date of as built provided)
4 List the inverter relay frequency (Hz) and trip time settings
22National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
As Built Must be PE stamped and signed dated by person
that performed the commissioning test (Signature date
should match date of test)
Pictures Meter picture should show permanent plaque
(visible at eye level) that includes a warning about generator
installed
Pictures If the AC utility disconnect switch is not grouped
with and adjacent to the utility revenue meter then a
permanent plaque (visible at eye level) that clearly identifies
the location of the AC utility disconnect is required
23National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
Evidence of insurance is required for all projects gt 60kW in
MA and gt50kW in RI Refer to the ISA and Interconnection
Tariff for insurance requirements
Qualifying Facility documents
Schedule A (P-Rate) required for all QF projects
W9 (Only for projects gt60kW)
ACH (Only for projects gt60kW)
Supplier Enrollment Form (Only for projects gt60kW)
24National Grid | July Interconnection Webinar | July 16 2020
Metering Reminder
Projects greater than 60kW in MA and greater than 25kW in RI
require interval metering (Wireless or phone line)
Company needs a 4G wireless signal test on a Verizon network in
order to provide wireless metering
Phone lines must be dedicated and terminated at the meter
location Line must be 100 copper Fiber lines will not
communicate properly
These meters are long lead time items and prep time can be 6-8
weeks so it is important to work through this with your job owner
well in advance of when you intend to seek Authority to
Interconnect
Wireless test form httpsngusforcecomsarticleMA-
Interconnection-Documents
Standard Review
ProcessNat Mahattanasakul
05
26National Grid | July Interconnection Webinar | July 16 2020
Standard Criteria
Applies to
Projects that require Distribution System Impact Study (DSIS)
Large-scale DG projects
Generally greater than 500 kW but project specific
DG projects requiring System Modifications at the substation level
Non-listed inverters or generators other than PV
Induction Synchronous Asynchronous
Most CHP systems
All projects that do not qualify for the Simplified or Expedited process
27National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Pre-Application
Application
Standard
Engineering Review
Impact StudyDetailed Study
Conditional Approval (to construct DG system)
Company Construction
Witness Test
Authorization to Interconnect
httpsngusforcecomsarticleMA-Complex-Standard-Application-Process
28National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Standard
Eligible Facilities Any DG
Acknowledge Receipt of Application (3 days)
Review Application for Completeness 10 days
Complete Standard Process Initial Review 20 days
Send Impact Study Agreement 5 days
Complete Impact Study 55-60 days or by mutual agreement depending on complexity
Complete Detailed Study (if needed) 30 ndash 60 days or by mutual agreement depending on complexity
Send Executable Agreement (ISA) 15 days
Total Maximum Days 135160 days (200 days for Standard Complex)
Construction Schedule Varied
Witness Test10 days from the Companyrsquos approval of WT procedures or
by mutual agreement
29National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Impact Study will determine the level of impact on the Companyrsquos EPS and the required System
Modifications
Impact and Detailed Study (if applicable) will determine System Modifications required and cost
(Risk of Islanding)
ISO-NE Generator Notification Process will be required for applications that are greater than 1MW
but less than 5MW (ie PP5-1 or GNF) and a Proposed Plan Application (PPA) along with supporting Transmission System Impact Study (TSIS) will be required for applications 5MW or greater in size single or potentially in aggregate Size of project based on nameplate rating of
system
These requirements will add time to the DG Interconnection Process if there is an ASO hold If so
the DSIS will be placed on hold until the ISO-NE approval or determination is known likely at a point during the DSIS process
Interconnection Service Agreement (ISA) provided after Study completed or an Early ISA could be requested if Detailed Study is required
If substation modifications required Company has 60 BD for Study (MDPU 1320 ndash pg 50) or by mutual agreement if estimated construction cost greater than $1 million
30National Grid | July Interconnection Webinar | July 16 2020
New CEI Structure
Process Improvement
amp Future TopicsWill Kern
06
32National Grid | July Interconnection Webinar | July 16 2020
Process Improvement amp Future Topics
Potential webinar topics
Verizon initiatives
Hosting Capacity Maps
Metering
Mike Porcaro as Ombudsperson
Questions
07
34National Grid | July Interconnection Webinar | July 16 2020
Appendix Summary of Resources Documents amp Links
Distributed Generation Website ndash
httpswww9nationalgriduscommasselectrichomeenergyeffdistributed_gen
erationasp
Interconnection Process Resources ndash
httpswww9nationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
Storage Assistance -
httpsngusforcecomsarticleStorage-Assistance
DPU Interim Guidance for ESS -
httpsngusforcecomsarticleHow-to-Add-Energy-Storage-to-an-In-Progress-Application-in-Massachusetts
| [Insert document title] | [Insert date]
21National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
For most Expedited applications a ldquoCommissioning Memordquo on
a company letterhead is provided in lieu of Witness Test
Commissioning test should consist of the following
1 Two (2) second shutdown when disconnect open test
2 Five (5) minutes before restart when disconnect is closed test
3 Confirm system matches As-built (include most recent revision
date of as built provided)
4 List the inverter relay frequency (Hz) and trip time settings
22National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
As Built Must be PE stamped and signed dated by person
that performed the commissioning test (Signature date
should match date of test)
Pictures Meter picture should show permanent plaque
(visible at eye level) that includes a warning about generator
installed
Pictures If the AC utility disconnect switch is not grouped
with and adjacent to the utility revenue meter then a
permanent plaque (visible at eye level) that clearly identifies
the location of the AC utility disconnect is required
23National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
Evidence of insurance is required for all projects gt 60kW in
MA and gt50kW in RI Refer to the ISA and Interconnection
Tariff for insurance requirements
Qualifying Facility documents
Schedule A (P-Rate) required for all QF projects
W9 (Only for projects gt60kW)
ACH (Only for projects gt60kW)
Supplier Enrollment Form (Only for projects gt60kW)
24National Grid | July Interconnection Webinar | July 16 2020
Metering Reminder
Projects greater than 60kW in MA and greater than 25kW in RI
require interval metering (Wireless or phone line)
Company needs a 4G wireless signal test on a Verizon network in
order to provide wireless metering
Phone lines must be dedicated and terminated at the meter
location Line must be 100 copper Fiber lines will not
communicate properly
These meters are long lead time items and prep time can be 6-8
weeks so it is important to work through this with your job owner
well in advance of when you intend to seek Authority to
Interconnect
Wireless test form httpsngusforcecomsarticleMA-
Interconnection-Documents
Standard Review
ProcessNat Mahattanasakul
05
26National Grid | July Interconnection Webinar | July 16 2020
Standard Criteria
Applies to
Projects that require Distribution System Impact Study (DSIS)
Large-scale DG projects
Generally greater than 500 kW but project specific
DG projects requiring System Modifications at the substation level
Non-listed inverters or generators other than PV
Induction Synchronous Asynchronous
Most CHP systems
All projects that do not qualify for the Simplified or Expedited process
27National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Pre-Application
Application
Standard
Engineering Review
Impact StudyDetailed Study
Conditional Approval (to construct DG system)
Company Construction
Witness Test
Authorization to Interconnect
httpsngusforcecomsarticleMA-Complex-Standard-Application-Process
28National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Standard
Eligible Facilities Any DG
Acknowledge Receipt of Application (3 days)
Review Application for Completeness 10 days
Complete Standard Process Initial Review 20 days
Send Impact Study Agreement 5 days
Complete Impact Study 55-60 days or by mutual agreement depending on complexity
Complete Detailed Study (if needed) 30 ndash 60 days or by mutual agreement depending on complexity
Send Executable Agreement (ISA) 15 days
Total Maximum Days 135160 days (200 days for Standard Complex)
Construction Schedule Varied
Witness Test10 days from the Companyrsquos approval of WT procedures or
by mutual agreement
29National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Impact Study will determine the level of impact on the Companyrsquos EPS and the required System
Modifications
Impact and Detailed Study (if applicable) will determine System Modifications required and cost
(Risk of Islanding)
ISO-NE Generator Notification Process will be required for applications that are greater than 1MW
but less than 5MW (ie PP5-1 or GNF) and a Proposed Plan Application (PPA) along with supporting Transmission System Impact Study (TSIS) will be required for applications 5MW or greater in size single or potentially in aggregate Size of project based on nameplate rating of
system
These requirements will add time to the DG Interconnection Process if there is an ASO hold If so
the DSIS will be placed on hold until the ISO-NE approval or determination is known likely at a point during the DSIS process
Interconnection Service Agreement (ISA) provided after Study completed or an Early ISA could be requested if Detailed Study is required
If substation modifications required Company has 60 BD for Study (MDPU 1320 ndash pg 50) or by mutual agreement if estimated construction cost greater than $1 million
30National Grid | July Interconnection Webinar | July 16 2020
New CEI Structure
Process Improvement
amp Future TopicsWill Kern
06
32National Grid | July Interconnection Webinar | July 16 2020
Process Improvement amp Future Topics
Potential webinar topics
Verizon initiatives
Hosting Capacity Maps
Metering
Mike Porcaro as Ombudsperson
Questions
07
34National Grid | July Interconnection Webinar | July 16 2020
Appendix Summary of Resources Documents amp Links
Distributed Generation Website ndash
httpswww9nationalgriduscommasselectrichomeenergyeffdistributed_gen
erationasp
Interconnection Process Resources ndash
httpswww9nationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
Storage Assistance -
httpsngusforcecomsarticleStorage-Assistance
DPU Interim Guidance for ESS -
httpsngusforcecomsarticleHow-to-Add-Energy-Storage-to-an-In-Progress-Application-in-Massachusetts
| [Insert document title] | [Insert date]
22National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
As Built Must be PE stamped and signed dated by person
that performed the commissioning test (Signature date
should match date of test)
Pictures Meter picture should show permanent plaque
(visible at eye level) that includes a warning about generator
installed
Pictures If the AC utility disconnect switch is not grouped
with and adjacent to the utility revenue meter then a
permanent plaque (visible at eye level) that clearly identifies
the location of the AC utility disconnect is required
23National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
Evidence of insurance is required for all projects gt 60kW in
MA and gt50kW in RI Refer to the ISA and Interconnection
Tariff for insurance requirements
Qualifying Facility documents
Schedule A (P-Rate) required for all QF projects
W9 (Only for projects gt60kW)
ACH (Only for projects gt60kW)
Supplier Enrollment Form (Only for projects gt60kW)
24National Grid | July Interconnection Webinar | July 16 2020
Metering Reminder
Projects greater than 60kW in MA and greater than 25kW in RI
require interval metering (Wireless or phone line)
Company needs a 4G wireless signal test on a Verizon network in
order to provide wireless metering
Phone lines must be dedicated and terminated at the meter
location Line must be 100 copper Fiber lines will not
communicate properly
These meters are long lead time items and prep time can be 6-8
weeks so it is important to work through this with your job owner
well in advance of when you intend to seek Authority to
Interconnect
Wireless test form httpsngusforcecomsarticleMA-
Interconnection-Documents
Standard Review
ProcessNat Mahattanasakul
05
26National Grid | July Interconnection Webinar | July 16 2020
Standard Criteria
Applies to
Projects that require Distribution System Impact Study (DSIS)
Large-scale DG projects
Generally greater than 500 kW but project specific
DG projects requiring System Modifications at the substation level
Non-listed inverters or generators other than PV
Induction Synchronous Asynchronous
Most CHP systems
All projects that do not qualify for the Simplified or Expedited process
27National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Pre-Application
Application
Standard
Engineering Review
Impact StudyDetailed Study
Conditional Approval (to construct DG system)
Company Construction
Witness Test
Authorization to Interconnect
httpsngusforcecomsarticleMA-Complex-Standard-Application-Process
28National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Standard
Eligible Facilities Any DG
Acknowledge Receipt of Application (3 days)
Review Application for Completeness 10 days
Complete Standard Process Initial Review 20 days
Send Impact Study Agreement 5 days
Complete Impact Study 55-60 days or by mutual agreement depending on complexity
Complete Detailed Study (if needed) 30 ndash 60 days or by mutual agreement depending on complexity
Send Executable Agreement (ISA) 15 days
Total Maximum Days 135160 days (200 days for Standard Complex)
Construction Schedule Varied
Witness Test10 days from the Companyrsquos approval of WT procedures or
by mutual agreement
29National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Impact Study will determine the level of impact on the Companyrsquos EPS and the required System
Modifications
Impact and Detailed Study (if applicable) will determine System Modifications required and cost
(Risk of Islanding)
ISO-NE Generator Notification Process will be required for applications that are greater than 1MW
but less than 5MW (ie PP5-1 or GNF) and a Proposed Plan Application (PPA) along with supporting Transmission System Impact Study (TSIS) will be required for applications 5MW or greater in size single or potentially in aggregate Size of project based on nameplate rating of
system
These requirements will add time to the DG Interconnection Process if there is an ASO hold If so
the DSIS will be placed on hold until the ISO-NE approval or determination is known likely at a point during the DSIS process
Interconnection Service Agreement (ISA) provided after Study completed or an Early ISA could be requested if Detailed Study is required
If substation modifications required Company has 60 BD for Study (MDPU 1320 ndash pg 50) or by mutual agreement if estimated construction cost greater than $1 million
30National Grid | July Interconnection Webinar | July 16 2020
New CEI Structure
Process Improvement
amp Future TopicsWill Kern
06
32National Grid | July Interconnection Webinar | July 16 2020
Process Improvement amp Future Topics
Potential webinar topics
Verizon initiatives
Hosting Capacity Maps
Metering
Mike Porcaro as Ombudsperson
Questions
07
34National Grid | July Interconnection Webinar | July 16 2020
Appendix Summary of Resources Documents amp Links
Distributed Generation Website ndash
httpswww9nationalgriduscommasselectrichomeenergyeffdistributed_gen
erationasp
Interconnection Process Resources ndash
httpswww9nationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
Storage Assistance -
httpsngusforcecomsarticleStorage-Assistance
DPU Interim Guidance for ESS -
httpsngusforcecomsarticleHow-to-Add-Energy-Storage-to-an-In-Progress-Application-in-Massachusetts
| [Insert document title] | [Insert date]
23National Grid | July Interconnection Webinar | July 16 2020
Common Errors in Completion Documents
Evidence of insurance is required for all projects gt 60kW in
MA and gt50kW in RI Refer to the ISA and Interconnection
Tariff for insurance requirements
Qualifying Facility documents
Schedule A (P-Rate) required for all QF projects
W9 (Only for projects gt60kW)
ACH (Only for projects gt60kW)
Supplier Enrollment Form (Only for projects gt60kW)
24National Grid | July Interconnection Webinar | July 16 2020
Metering Reminder
Projects greater than 60kW in MA and greater than 25kW in RI
require interval metering (Wireless or phone line)
Company needs a 4G wireless signal test on a Verizon network in
order to provide wireless metering
Phone lines must be dedicated and terminated at the meter
location Line must be 100 copper Fiber lines will not
communicate properly
These meters are long lead time items and prep time can be 6-8
weeks so it is important to work through this with your job owner
well in advance of when you intend to seek Authority to
Interconnect
Wireless test form httpsngusforcecomsarticleMA-
Interconnection-Documents
Standard Review
ProcessNat Mahattanasakul
05
26National Grid | July Interconnection Webinar | July 16 2020
Standard Criteria
Applies to
Projects that require Distribution System Impact Study (DSIS)
Large-scale DG projects
Generally greater than 500 kW but project specific
DG projects requiring System Modifications at the substation level
Non-listed inverters or generators other than PV
Induction Synchronous Asynchronous
Most CHP systems
All projects that do not qualify for the Simplified or Expedited process
27National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Pre-Application
Application
Standard
Engineering Review
Impact StudyDetailed Study
Conditional Approval (to construct DG system)
Company Construction
Witness Test
Authorization to Interconnect
httpsngusforcecomsarticleMA-Complex-Standard-Application-Process
28National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Standard
Eligible Facilities Any DG
Acknowledge Receipt of Application (3 days)
Review Application for Completeness 10 days
Complete Standard Process Initial Review 20 days
Send Impact Study Agreement 5 days
Complete Impact Study 55-60 days or by mutual agreement depending on complexity
Complete Detailed Study (if needed) 30 ndash 60 days or by mutual agreement depending on complexity
Send Executable Agreement (ISA) 15 days
Total Maximum Days 135160 days (200 days for Standard Complex)
Construction Schedule Varied
Witness Test10 days from the Companyrsquos approval of WT procedures or
by mutual agreement
29National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Impact Study will determine the level of impact on the Companyrsquos EPS and the required System
Modifications
Impact and Detailed Study (if applicable) will determine System Modifications required and cost
(Risk of Islanding)
ISO-NE Generator Notification Process will be required for applications that are greater than 1MW
but less than 5MW (ie PP5-1 or GNF) and a Proposed Plan Application (PPA) along with supporting Transmission System Impact Study (TSIS) will be required for applications 5MW or greater in size single or potentially in aggregate Size of project based on nameplate rating of
system
These requirements will add time to the DG Interconnection Process if there is an ASO hold If so
the DSIS will be placed on hold until the ISO-NE approval or determination is known likely at a point during the DSIS process
Interconnection Service Agreement (ISA) provided after Study completed or an Early ISA could be requested if Detailed Study is required
If substation modifications required Company has 60 BD for Study (MDPU 1320 ndash pg 50) or by mutual agreement if estimated construction cost greater than $1 million
30National Grid | July Interconnection Webinar | July 16 2020
New CEI Structure
Process Improvement
amp Future TopicsWill Kern
06
32National Grid | July Interconnection Webinar | July 16 2020
Process Improvement amp Future Topics
Potential webinar topics
Verizon initiatives
Hosting Capacity Maps
Metering
Mike Porcaro as Ombudsperson
Questions
07
34National Grid | July Interconnection Webinar | July 16 2020
Appendix Summary of Resources Documents amp Links
Distributed Generation Website ndash
httpswww9nationalgriduscommasselectrichomeenergyeffdistributed_gen
erationasp
Interconnection Process Resources ndash
httpswww9nationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
Storage Assistance -
httpsngusforcecomsarticleStorage-Assistance
DPU Interim Guidance for ESS -
httpsngusforcecomsarticleHow-to-Add-Energy-Storage-to-an-In-Progress-Application-in-Massachusetts
| [Insert document title] | [Insert date]
24National Grid | July Interconnection Webinar | July 16 2020
Metering Reminder
Projects greater than 60kW in MA and greater than 25kW in RI
require interval metering (Wireless or phone line)
Company needs a 4G wireless signal test on a Verizon network in
order to provide wireless metering
Phone lines must be dedicated and terminated at the meter
location Line must be 100 copper Fiber lines will not
communicate properly
These meters are long lead time items and prep time can be 6-8
weeks so it is important to work through this with your job owner
well in advance of when you intend to seek Authority to
Interconnect
Wireless test form httpsngusforcecomsarticleMA-
Interconnection-Documents
Standard Review
ProcessNat Mahattanasakul
05
26National Grid | July Interconnection Webinar | July 16 2020
Standard Criteria
Applies to
Projects that require Distribution System Impact Study (DSIS)
Large-scale DG projects
Generally greater than 500 kW but project specific
DG projects requiring System Modifications at the substation level
Non-listed inverters or generators other than PV
Induction Synchronous Asynchronous
Most CHP systems
All projects that do not qualify for the Simplified or Expedited process
27National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Pre-Application
Application
Standard
Engineering Review
Impact StudyDetailed Study
Conditional Approval (to construct DG system)
Company Construction
Witness Test
Authorization to Interconnect
httpsngusforcecomsarticleMA-Complex-Standard-Application-Process
28National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Standard
Eligible Facilities Any DG
Acknowledge Receipt of Application (3 days)
Review Application for Completeness 10 days
Complete Standard Process Initial Review 20 days
Send Impact Study Agreement 5 days
Complete Impact Study 55-60 days or by mutual agreement depending on complexity
Complete Detailed Study (if needed) 30 ndash 60 days or by mutual agreement depending on complexity
Send Executable Agreement (ISA) 15 days
Total Maximum Days 135160 days (200 days for Standard Complex)
Construction Schedule Varied
Witness Test10 days from the Companyrsquos approval of WT procedures or
by mutual agreement
29National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Impact Study will determine the level of impact on the Companyrsquos EPS and the required System
Modifications
Impact and Detailed Study (if applicable) will determine System Modifications required and cost
(Risk of Islanding)
ISO-NE Generator Notification Process will be required for applications that are greater than 1MW
but less than 5MW (ie PP5-1 or GNF) and a Proposed Plan Application (PPA) along with supporting Transmission System Impact Study (TSIS) will be required for applications 5MW or greater in size single or potentially in aggregate Size of project based on nameplate rating of
system
These requirements will add time to the DG Interconnection Process if there is an ASO hold If so
the DSIS will be placed on hold until the ISO-NE approval or determination is known likely at a point during the DSIS process
Interconnection Service Agreement (ISA) provided after Study completed or an Early ISA could be requested if Detailed Study is required
If substation modifications required Company has 60 BD for Study (MDPU 1320 ndash pg 50) or by mutual agreement if estimated construction cost greater than $1 million
30National Grid | July Interconnection Webinar | July 16 2020
New CEI Structure
Process Improvement
amp Future TopicsWill Kern
06
32National Grid | July Interconnection Webinar | July 16 2020
Process Improvement amp Future Topics
Potential webinar topics
Verizon initiatives
Hosting Capacity Maps
Metering
Mike Porcaro as Ombudsperson
Questions
07
34National Grid | July Interconnection Webinar | July 16 2020
Appendix Summary of Resources Documents amp Links
Distributed Generation Website ndash
httpswww9nationalgriduscommasselectrichomeenergyeffdistributed_gen
erationasp
Interconnection Process Resources ndash
httpswww9nationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
Storage Assistance -
httpsngusforcecomsarticleStorage-Assistance
DPU Interim Guidance for ESS -
httpsngusforcecomsarticleHow-to-Add-Energy-Storage-to-an-In-Progress-Application-in-Massachusetts
| [Insert document title] | [Insert date]
Standard Review
ProcessNat Mahattanasakul
05
26National Grid | July Interconnection Webinar | July 16 2020
Standard Criteria
Applies to
Projects that require Distribution System Impact Study (DSIS)
Large-scale DG projects
Generally greater than 500 kW but project specific
DG projects requiring System Modifications at the substation level
Non-listed inverters or generators other than PV
Induction Synchronous Asynchronous
Most CHP systems
All projects that do not qualify for the Simplified or Expedited process
27National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Pre-Application
Application
Standard
Engineering Review
Impact StudyDetailed Study
Conditional Approval (to construct DG system)
Company Construction
Witness Test
Authorization to Interconnect
httpsngusforcecomsarticleMA-Complex-Standard-Application-Process
28National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Standard
Eligible Facilities Any DG
Acknowledge Receipt of Application (3 days)
Review Application for Completeness 10 days
Complete Standard Process Initial Review 20 days
Send Impact Study Agreement 5 days
Complete Impact Study 55-60 days or by mutual agreement depending on complexity
Complete Detailed Study (if needed) 30 ndash 60 days or by mutual agreement depending on complexity
Send Executable Agreement (ISA) 15 days
Total Maximum Days 135160 days (200 days for Standard Complex)
Construction Schedule Varied
Witness Test10 days from the Companyrsquos approval of WT procedures or
by mutual agreement
29National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Impact Study will determine the level of impact on the Companyrsquos EPS and the required System
Modifications
Impact and Detailed Study (if applicable) will determine System Modifications required and cost
(Risk of Islanding)
ISO-NE Generator Notification Process will be required for applications that are greater than 1MW
but less than 5MW (ie PP5-1 or GNF) and a Proposed Plan Application (PPA) along with supporting Transmission System Impact Study (TSIS) will be required for applications 5MW or greater in size single or potentially in aggregate Size of project based on nameplate rating of
system
These requirements will add time to the DG Interconnection Process if there is an ASO hold If so
the DSIS will be placed on hold until the ISO-NE approval or determination is known likely at a point during the DSIS process
Interconnection Service Agreement (ISA) provided after Study completed or an Early ISA could be requested if Detailed Study is required
If substation modifications required Company has 60 BD for Study (MDPU 1320 ndash pg 50) or by mutual agreement if estimated construction cost greater than $1 million
30National Grid | July Interconnection Webinar | July 16 2020
New CEI Structure
Process Improvement
amp Future TopicsWill Kern
06
32National Grid | July Interconnection Webinar | July 16 2020
Process Improvement amp Future Topics
Potential webinar topics
Verizon initiatives
Hosting Capacity Maps
Metering
Mike Porcaro as Ombudsperson
Questions
07
34National Grid | July Interconnection Webinar | July 16 2020
Appendix Summary of Resources Documents amp Links
Distributed Generation Website ndash
httpswww9nationalgriduscommasselectrichomeenergyeffdistributed_gen
erationasp
Interconnection Process Resources ndash
httpswww9nationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
Storage Assistance -
httpsngusforcecomsarticleStorage-Assistance
DPU Interim Guidance for ESS -
httpsngusforcecomsarticleHow-to-Add-Energy-Storage-to-an-In-Progress-Application-in-Massachusetts
| [Insert document title] | [Insert date]
26National Grid | July Interconnection Webinar | July 16 2020
Standard Criteria
Applies to
Projects that require Distribution System Impact Study (DSIS)
Large-scale DG projects
Generally greater than 500 kW but project specific
DG projects requiring System Modifications at the substation level
Non-listed inverters or generators other than PV
Induction Synchronous Asynchronous
Most CHP systems
All projects that do not qualify for the Simplified or Expedited process
27National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Pre-Application
Application
Standard
Engineering Review
Impact StudyDetailed Study
Conditional Approval (to construct DG system)
Company Construction
Witness Test
Authorization to Interconnect
httpsngusforcecomsarticleMA-Complex-Standard-Application-Process
28National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Standard
Eligible Facilities Any DG
Acknowledge Receipt of Application (3 days)
Review Application for Completeness 10 days
Complete Standard Process Initial Review 20 days
Send Impact Study Agreement 5 days
Complete Impact Study 55-60 days or by mutual agreement depending on complexity
Complete Detailed Study (if needed) 30 ndash 60 days or by mutual agreement depending on complexity
Send Executable Agreement (ISA) 15 days
Total Maximum Days 135160 days (200 days for Standard Complex)
Construction Schedule Varied
Witness Test10 days from the Companyrsquos approval of WT procedures or
by mutual agreement
29National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Impact Study will determine the level of impact on the Companyrsquos EPS and the required System
Modifications
Impact and Detailed Study (if applicable) will determine System Modifications required and cost
(Risk of Islanding)
ISO-NE Generator Notification Process will be required for applications that are greater than 1MW
but less than 5MW (ie PP5-1 or GNF) and a Proposed Plan Application (PPA) along with supporting Transmission System Impact Study (TSIS) will be required for applications 5MW or greater in size single or potentially in aggregate Size of project based on nameplate rating of
system
These requirements will add time to the DG Interconnection Process if there is an ASO hold If so
the DSIS will be placed on hold until the ISO-NE approval or determination is known likely at a point during the DSIS process
Interconnection Service Agreement (ISA) provided after Study completed or an Early ISA could be requested if Detailed Study is required
If substation modifications required Company has 60 BD for Study (MDPU 1320 ndash pg 50) or by mutual agreement if estimated construction cost greater than $1 million
30National Grid | July Interconnection Webinar | July 16 2020
New CEI Structure
Process Improvement
amp Future TopicsWill Kern
06
32National Grid | July Interconnection Webinar | July 16 2020
Process Improvement amp Future Topics
Potential webinar topics
Verizon initiatives
Hosting Capacity Maps
Metering
Mike Porcaro as Ombudsperson
Questions
07
34National Grid | July Interconnection Webinar | July 16 2020
Appendix Summary of Resources Documents amp Links
Distributed Generation Website ndash
httpswww9nationalgriduscommasselectrichomeenergyeffdistributed_gen
erationasp
Interconnection Process Resources ndash
httpswww9nationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
Storage Assistance -
httpsngusforcecomsarticleStorage-Assistance
DPU Interim Guidance for ESS -
httpsngusforcecomsarticleHow-to-Add-Energy-Storage-to-an-In-Progress-Application-in-Massachusetts
| [Insert document title] | [Insert date]
27National Grid | July Interconnection Webinar | July 16 2020
Interconnection Process Steps
Pre-Application
Application
Standard
Engineering Review
Impact StudyDetailed Study
Conditional Approval (to construct DG system)
Company Construction
Witness Test
Authorization to Interconnect
httpsngusforcecomsarticleMA-Complex-Standard-Application-Process
28National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Standard
Eligible Facilities Any DG
Acknowledge Receipt of Application (3 days)
Review Application for Completeness 10 days
Complete Standard Process Initial Review 20 days
Send Impact Study Agreement 5 days
Complete Impact Study 55-60 days or by mutual agreement depending on complexity
Complete Detailed Study (if needed) 30 ndash 60 days or by mutual agreement depending on complexity
Send Executable Agreement (ISA) 15 days
Total Maximum Days 135160 days (200 days for Standard Complex)
Construction Schedule Varied
Witness Test10 days from the Companyrsquos approval of WT procedures or
by mutual agreement
29National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Impact Study will determine the level of impact on the Companyrsquos EPS and the required System
Modifications
Impact and Detailed Study (if applicable) will determine System Modifications required and cost
(Risk of Islanding)
ISO-NE Generator Notification Process will be required for applications that are greater than 1MW
but less than 5MW (ie PP5-1 or GNF) and a Proposed Plan Application (PPA) along with supporting Transmission System Impact Study (TSIS) will be required for applications 5MW or greater in size single or potentially in aggregate Size of project based on nameplate rating of
system
These requirements will add time to the DG Interconnection Process if there is an ASO hold If so
the DSIS will be placed on hold until the ISO-NE approval or determination is known likely at a point during the DSIS process
Interconnection Service Agreement (ISA) provided after Study completed or an Early ISA could be requested if Detailed Study is required
If substation modifications required Company has 60 BD for Study (MDPU 1320 ndash pg 50) or by mutual agreement if estimated construction cost greater than $1 million
30National Grid | July Interconnection Webinar | July 16 2020
New CEI Structure
Process Improvement
amp Future TopicsWill Kern
06
32National Grid | July Interconnection Webinar | July 16 2020
Process Improvement amp Future Topics
Potential webinar topics
Verizon initiatives
Hosting Capacity Maps
Metering
Mike Porcaro as Ombudsperson
Questions
07
34National Grid | July Interconnection Webinar | July 16 2020
Appendix Summary of Resources Documents amp Links
Distributed Generation Website ndash
httpswww9nationalgriduscommasselectrichomeenergyeffdistributed_gen
erationasp
Interconnection Process Resources ndash
httpswww9nationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
Storage Assistance -
httpsngusforcecomsarticleStorage-Assistance
DPU Interim Guidance for ESS -
httpsngusforcecomsarticleHow-to-Add-Energy-Storage-to-an-In-Progress-Application-in-Massachusetts
| [Insert document title] | [Insert date]
28National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Standard
Eligible Facilities Any DG
Acknowledge Receipt of Application (3 days)
Review Application for Completeness 10 days
Complete Standard Process Initial Review 20 days
Send Impact Study Agreement 5 days
Complete Impact Study 55-60 days or by mutual agreement depending on complexity
Complete Detailed Study (if needed) 30 ndash 60 days or by mutual agreement depending on complexity
Send Executable Agreement (ISA) 15 days
Total Maximum Days 135160 days (200 days for Standard Complex)
Construction Schedule Varied
Witness Test10 days from the Companyrsquos approval of WT procedures or
by mutual agreement
29National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Impact Study will determine the level of impact on the Companyrsquos EPS and the required System
Modifications
Impact and Detailed Study (if applicable) will determine System Modifications required and cost
(Risk of Islanding)
ISO-NE Generator Notification Process will be required for applications that are greater than 1MW
but less than 5MW (ie PP5-1 or GNF) and a Proposed Plan Application (PPA) along with supporting Transmission System Impact Study (TSIS) will be required for applications 5MW or greater in size single or potentially in aggregate Size of project based on nameplate rating of
system
These requirements will add time to the DG Interconnection Process if there is an ASO hold If so
the DSIS will be placed on hold until the ISO-NE approval or determination is known likely at a point during the DSIS process
Interconnection Service Agreement (ISA) provided after Study completed or an Early ISA could be requested if Detailed Study is required
If substation modifications required Company has 60 BD for Study (MDPU 1320 ndash pg 50) or by mutual agreement if estimated construction cost greater than $1 million
30National Grid | July Interconnection Webinar | July 16 2020
New CEI Structure
Process Improvement
amp Future TopicsWill Kern
06
32National Grid | July Interconnection Webinar | July 16 2020
Process Improvement amp Future Topics
Potential webinar topics
Verizon initiatives
Hosting Capacity Maps
Metering
Mike Porcaro as Ombudsperson
Questions
07
34National Grid | July Interconnection Webinar | July 16 2020
Appendix Summary of Resources Documents amp Links
Distributed Generation Website ndash
httpswww9nationalgriduscommasselectrichomeenergyeffdistributed_gen
erationasp
Interconnection Process Resources ndash
httpswww9nationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
Storage Assistance -
httpsngusforcecomsarticleStorage-Assistance
DPU Interim Guidance for ESS -
httpsngusforcecomsarticleHow-to-Add-Energy-Storage-to-an-In-Progress-Application-in-Massachusetts
| [Insert document title] | [Insert date]
29National Grid | July Interconnection Webinar | July 16 2020
Standard Review Path
Impact Study will determine the level of impact on the Companyrsquos EPS and the required System
Modifications
Impact and Detailed Study (if applicable) will determine System Modifications required and cost
(Risk of Islanding)
ISO-NE Generator Notification Process will be required for applications that are greater than 1MW
but less than 5MW (ie PP5-1 or GNF) and a Proposed Plan Application (PPA) along with supporting Transmission System Impact Study (TSIS) will be required for applications 5MW or greater in size single or potentially in aggregate Size of project based on nameplate rating of
system
These requirements will add time to the DG Interconnection Process if there is an ASO hold If so
the DSIS will be placed on hold until the ISO-NE approval or determination is known likely at a point during the DSIS process
Interconnection Service Agreement (ISA) provided after Study completed or an Early ISA could be requested if Detailed Study is required
If substation modifications required Company has 60 BD for Study (MDPU 1320 ndash pg 50) or by mutual agreement if estimated construction cost greater than $1 million
30National Grid | July Interconnection Webinar | July 16 2020
New CEI Structure
Process Improvement
amp Future TopicsWill Kern
06
32National Grid | July Interconnection Webinar | July 16 2020
Process Improvement amp Future Topics
Potential webinar topics
Verizon initiatives
Hosting Capacity Maps
Metering
Mike Porcaro as Ombudsperson
Questions
07
34National Grid | July Interconnection Webinar | July 16 2020
Appendix Summary of Resources Documents amp Links
Distributed Generation Website ndash
httpswww9nationalgriduscommasselectrichomeenergyeffdistributed_gen
erationasp
Interconnection Process Resources ndash
httpswww9nationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
Storage Assistance -
httpsngusforcecomsarticleStorage-Assistance
DPU Interim Guidance for ESS -
httpsngusforcecomsarticleHow-to-Add-Energy-Storage-to-an-In-Progress-Application-in-Massachusetts
| [Insert document title] | [Insert date]
30National Grid | July Interconnection Webinar | July 16 2020
New CEI Structure
Process Improvement
amp Future TopicsWill Kern
06
32National Grid | July Interconnection Webinar | July 16 2020
Process Improvement amp Future Topics
Potential webinar topics
Verizon initiatives
Hosting Capacity Maps
Metering
Mike Porcaro as Ombudsperson
Questions
07
34National Grid | July Interconnection Webinar | July 16 2020
Appendix Summary of Resources Documents amp Links
Distributed Generation Website ndash
httpswww9nationalgriduscommasselectrichomeenergyeffdistributed_gen
erationasp
Interconnection Process Resources ndash
httpswww9nationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
Storage Assistance -
httpsngusforcecomsarticleStorage-Assistance
DPU Interim Guidance for ESS -
httpsngusforcecomsarticleHow-to-Add-Energy-Storage-to-an-In-Progress-Application-in-Massachusetts
| [Insert document title] | [Insert date]
Process Improvement
amp Future TopicsWill Kern
06
32National Grid | July Interconnection Webinar | July 16 2020
Process Improvement amp Future Topics
Potential webinar topics
Verizon initiatives
Hosting Capacity Maps
Metering
Mike Porcaro as Ombudsperson
Questions
07
34National Grid | July Interconnection Webinar | July 16 2020
Appendix Summary of Resources Documents amp Links
Distributed Generation Website ndash
httpswww9nationalgriduscommasselectrichomeenergyeffdistributed_gen
erationasp
Interconnection Process Resources ndash
httpswww9nationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
Storage Assistance -
httpsngusforcecomsarticleStorage-Assistance
DPU Interim Guidance for ESS -
httpsngusforcecomsarticleHow-to-Add-Energy-Storage-to-an-In-Progress-Application-in-Massachusetts
| [Insert document title] | [Insert date]
32National Grid | July Interconnection Webinar | July 16 2020
Process Improvement amp Future Topics
Potential webinar topics
Verizon initiatives
Hosting Capacity Maps
Metering
Mike Porcaro as Ombudsperson
Questions
07
34National Grid | July Interconnection Webinar | July 16 2020
Appendix Summary of Resources Documents amp Links
Distributed Generation Website ndash
httpswww9nationalgriduscommasselectrichomeenergyeffdistributed_gen
erationasp
Interconnection Process Resources ndash
httpswww9nationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
Storage Assistance -
httpsngusforcecomsarticleStorage-Assistance
DPU Interim Guidance for ESS -
httpsngusforcecomsarticleHow-to-Add-Energy-Storage-to-an-In-Progress-Application-in-Massachusetts
| [Insert document title] | [Insert date]
Questions
07
34National Grid | July Interconnection Webinar | July 16 2020
Appendix Summary of Resources Documents amp Links
Distributed Generation Website ndash
httpswww9nationalgriduscommasselectrichomeenergyeffdistributed_gen
erationasp
Interconnection Process Resources ndash
httpswww9nationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
Storage Assistance -
httpsngusforcecomsarticleStorage-Assistance
DPU Interim Guidance for ESS -
httpsngusforcecomsarticleHow-to-Add-Energy-Storage-to-an-In-Progress-Application-in-Massachusetts
| [Insert document title] | [Insert date]
34National Grid | July Interconnection Webinar | July 16 2020
Appendix Summary of Resources Documents amp Links
Distributed Generation Website ndash
httpswww9nationalgriduscommasselectrichomeenergyeffdistributed_gen
erationasp
Interconnection Process Resources ndash
httpswww9nationalgriduscommasselectrichomeenergyeff4_interconnection-processasp
Storage Assistance -
httpsngusforcecomsarticleStorage-Assistance
DPU Interim Guidance for ESS -
httpsngusforcecomsarticleHow-to-Add-Energy-Storage-to-an-In-Progress-Application-in-Massachusetts
| [Insert document title] | [Insert date]
| [Insert document title] | [Insert date]
