Residential/Commercial DG Customer SMART SOLAR …
Transcript of Residential/Commercial DG Customer SMART SOLAR …
NOTES:1. All Interval metering requires telemetry.2. Grouped meter location and installation shall be according to National Grid’s jurisdiction applicable service and tariffrequirements. See ESB 750 and ESB 756 Appendix C for the MA service jurisdiction (https://www.nationalgridus.com/ProNet/Technical-Resources/Electric-Specifications).
IC installs meter socket trough grouped at service location accessible for National Grid’s AMR meters (net typefor load + DER and bi-directional for MA SMART DER).< 60 kW applications are watthour type revenue meters and > 60 kW are interval type.
All kWh measured through the MA SMART meter is compensated through the MA SMART incentive rate.3. Generator disconnect installed according to NEC and National Grid’s MDPU Interconnection Tariff.4. Inverters shall be UL 1741 or UL 1741 SA certified for parallel operation with the utility (area EPS).5. Where existing PCC meter is inside, the IC will upgrade their service connection to change it to outside locationgrouped with MA SMART Solar meter.6. Bypass meter sockets required in accordance to ESB 750 table 7.2-1.7. Certified Inverter-based DER Interconnections <25kW may not be required to have an additional disconnecting meansin accordance with ESB 756 Appendix C.8. The following drawings are conceptual only. It is the responsibility of the customer to adhere to all applicable codes,standards and requirements.9. For systems 25 kW and below a disconnecting or isolation means shall be required to be located between theCompany meter installation and the DER device to allow for Company testing of the meter socket prior to meterinstallation.(1) This device may be located based on customer preference, although where this device is not accessible tothe Company (2), this may cause delay with associated meter installation and testing.10. Line side Disconnect in addition to the load side disconnect required for 480/277 Volt installations.11. All Interval Meters will require telemetry12. Ganged metering sockets are not allowed in this program.13. PV and ESS will be wired to the load side of the Meter Socket.
DER: Distributed Energy ResourceDG: Distributed Generator (a subset of DER)EPS: Electric Power SystemIC: Interconnection CustomerPCC: Point of Common CouplingPoC: Point of Connection
Wh: Watthour Meter (may include demand quantities of Watts and VA)
Residential/Commercial DG CustomerSMART SOLAR Metering Notes
(1) The need for this disconnect is not a new requirement for testing meter socket installations. With existing load customer as well as behind-the-meter DER installations, thecustomer’s main service or parallel power production disconnect is in a position where isolation has been available. This isolation has typically been the main serviceovercurrent protection device. With the inclusion of sub metering installations, the main service OCP is no longer between the circuit path between the sub meter and theconnected DER device, therefore an isolation point to allow for testing is required.(2) The Company recommends locating this outside, adjacent to the meter socket to allow for the most flexibility for meter installation and future change-outs.
RETAIL
UTILITY – AREA EPS
INTERCONNECTIONCUSTOMER –
LOCAL EPS
PCC
PoC
Wh Wh
UTILITY SERVICE METER
FACILITYLOADS
REVENUE METERS ARE BI-DIRECTIONAL, NET METER AMR TYPE AND UTILITY OWNED.
METER LOCATIONS DETERMINED BY UTILITY FOR AMR ACCESS REQUIREMENTS.
Residential/Commercial DG CustomerBehind the Meter MA SMART < 60 kW
(Behind Main Service Equipment)
This diagram is representative ofone proposal and the utility may
require other configurations.
DG
Main ServiceEquipment
DG/DERProtection &
Control
OUTSIDE
INSIDE
Generator Disconnect
1a
See Note 9Disconnectrequired formeteringtesting.
$
Wh
Wh UTILITY PV GENERATION METER
Wh UTILITY STORAGE METER
All Meters >60 kW; Bi-directionalwith Telemetry
Line
Load
RETAIL
UTILITY – AREA EPS
INTERCONNECTIONCUSTOMER –
LOCAL EPS
PCC
PoCWh
Wh
FACILITYLOADS
REVENUE METERS ARE BI-DIRECTIONAL, NET METER AMR TYPE AND UTILITY OWNED.
METER LOCATIONS DETERMINED BY UTILITY FOR AMR ACCESS REQUIREMENTS.
Residential/Commercial DG CustomerBehind the Meter MA SMART < 60 kW
(Tap Ahead of Main Service Equipment)
DG
Main ServiceEquipment #1
Main ServiceEquipment #2
(GeneratorDisconnect)
OUTSIDE
INSIDE
Tap Box cannotbe associated
with the metersocket
1b
$
UTILITY SERVICE METER
This diagram is representative ofone proposal and the utility may
require other configurations.
Wh
Wh UTILITY PV GENERATION METER
Wh UTILITY STORAGE METER
All Meters >60 kW; Bi-directionalwith Telemetry
Line
LoadSee Note 9Disconnectrequired formeteringtesting.
RETAIL
UTILITY – AREA EPS
INTERCONNECTIONCUSTOMER –
LOCAL EPS
PCC
PoC
Wh Wh
FACILITYLOADS
REVENUE METERS ARE BI-DIRECTIONAL, NET METER AMR TYPE AND UTILITY OWNED.
METER LOCATIONS DETERMINED BY UTILITY FOR AMR ACCESS REQUIREMENTS.
Residential/Commercial DG CustomerBehind the Meter MA SMART < 60 kW
With AC ESS SYSTEM
DG
Main ServiceEquipment
DG Protection& Control
OUTSIDE
INSIDE
Generator Disconnect
1c
BatteryAC
Disconnect
BatteryStorage
Inverter(charge &discharge)
ESS System
DG Protection& Control
$
UTILITY SERVICE METER
This diagram is representative ofone proposal and the utility may
require other configurations.
Wh
Wh UTILITY PV GENERATION METER
Wh UTILITY STORAGE METER
All Meters >60 kW; Bi-directionalwith Telemetry
Line
LoadSee Note 9Disconnectrequired formeteringtesting.
RETAIL
UTILITY – AREA EPS
INTERCONNECTIONCUSTOMER –
LOCAL EPS
PCC
PoC
Wh Wh
FACILITYLOADS
REVENUE METERS ARE BI-DIRECTIONAL, NET METER AMR TYPE AND UTILITY OWNED.
METER LOCATIONS DETERMINED BY UTILITY FOR AMR ACCESS REQUIREMENTS.
Residential/Commercial DG CustomerBehind the Meter MA SMART < 60 kW
With DC ESS SYSTEM
DG
Main ServiceEquipment
DG Protection& Control
OUTSIDE
INSIDE
Generator Disconnect
1d
BatteryStorage
(charge &discharge)
ESS System
Version 10-04-2018
$
UTILITY SERVICE METER
This diagram is representative ofone proposal and the utility may
require other configurations.
Wh
Wh UTILITY PV GENERATION METER
Wh UTILITY STORAGE METER
All Meters >60 kW; Bi-directionalwith Telemetry
Line
LoadSee Note 9Disconnectrequired formeteringtesting.
Main ServiceEquipment
Utility
Customer
PremisesLoads
Wh
Main ServiceDisconnect
Main Distribution Panel
PVGeneratorDisconnect
Collector PVArray
ACDisconnect
PV Array
ServiceEntrance
Inverter(string)
Service Point or PCC
Generatoror DG
Facility
STGU AC Connection to Utility EPS 60 to 500kWBehind the Meter MA SMART
Utility’s Radial Distribution3-Phase, 4-Wire System
Secondary Metering
+ -
+ -
$Wh
2a
Note 10Note 10
UTILITY SERVICE METER
This diagram is representative ofone proposal and the utility may
require other configurations.
Wh
Wh UTILITY PV GENERATION METER
Wh UTILITY STORAGE METER
All Meters >60 kW; Bi-directionalwith Telemetry
Main ServiceEquipment
Utility
Customer
PremisesLoads
Wh
Main ServiceDisconnect
Main Distribution Panel
PVGeneratorDisconnectCollector PV
ArrayAC
Disconnect
PV Array
BatteryAC
Disconnect
BatteryStorage
ServiceEntrance
Inverter(string) Inverter
(charge &discharge)
Service Point or PCC
Generatoror DG
Facility ESS System
ESSDisconnect
ESS Battery + STGU Paired AC Connection to Utility EPS 60 to 500kWBehind the Meter MA SMART
Utility’s Radial Distribution3-Phase, 4-Wire System
Secondary Metering
Wh
+ -
+ -
2b
$
Note 10
Note 10
Note 10
UTILITY SERVICE METER
This diagram is representative ofone proposal and the utility may
require other configurations.
Wh
Wh UTILITY PV GENERATION METER
Wh UTILITY STORAGE METER
Wh
All Meters >60 kW; Bi-directionalwith Telemetry
Main ServiceEquipment
Utility
Customer
PremisesLoads
Wh
Main ServiceDisconnect
Main Distribution Panel
Collector PVArray
ACDisconnect
PV ArrayBatteryStorage
ServiceEntrance
Inverter
(charge &discharge)
Service Point or PCC
Generatoror DG
Facility
ESS System
DC ESS Battery + STGU Paired Connection to Utility EPS 60 to 500kWBehind the Meter MA SMART
Utility’s Radial Distribution3-Phase, 4-Wire System
Secondary Metering
+ -
+ -
Wh
2c
$
Note 10
Note 10
UTILITY SERVICE METER
This diagram is representative ofone proposal and the utility may
require other configurations.
Wh
Wh
Wh UTILITY STORAGE METER
UTILITY PV GENERATION METER
All Meters >60 kW; Bi-directionalwith Telemetry
Main ServiceEquipment
Utility
Customer
PremisesLoads
Wh
Main ServiceDisconnect
Main Distribution Panel
PVGeneratorDisconnect
Collector PVArray
ACDisconnect
PV Array
BatteryAC
Disconnect
BatteryStorage
ServiceEntrance
Inverter
Inverter(charge &discharge)
Service Point or PCC
Generatoror DG
Facility
ESS System
ESSDisconnect
ESS Battery + Multiple STGU Paired AC Connection to Utility EPS 60 to 500kWBehind the Meter MA SMART
Utility’s Radial Distribution3-Phase, 4-Wire System
Secondary Metering
Wh
+ -
+ -
2d
$Wh
Note 10Note 10 Note 10
Collector PVArray
ACDisconnect
PV Array
Inverter
Generatoror DG
Facility
+ -
+ -
Behind the Meter DifferentArray with Different Smart
Incentive levels
UTILITY SERVICE METER
This diagram is representative ofone proposal and the utility may
require other configurations.
Wh
Wh
Wh UTILITY STORAGE METER
UTILITY PV GENERATION METER
All Meters >60 kW; Bi-directionalwith Telemetry
STGU Paired AC Connection to Utility EPS 500kW and GreaterBehind the Meter MA SMART
Utility
Customer
Customer’s DERFacility
Utility’s Radial DistributionPrimary 3-Phase, 4-Wire System
Primary Metering
MAININTERRUPTING
DEVICE
Main Bus DER CustomerMain ServiceEquipment
Collector PV ArrayAC
Disconnect &O.C. Protection
Inverter
PV ArrayDC
Disconnect
Aux. Load
PV Array+ -
+ -
PV Step-UpTransformer
PremisesLoads
See Note 2 $
3a
UTILITY SERVICE METER
This diagram is representative ofone proposal and the utility may
require other configurations.
M
M
M UTILITY STORAGE METER
UTILITY PV GENERATION METER
MM
All Meters >60 kW; Bi-directionalwith Telemetry
MM
M
ESS AC Battery + STGU Paired AC Connection to Utility EPS 500kW and GreaterBehind the Meter MA SMART
ESS BatteryAC
Disconnect &O.C. Protection
ESS Battery
Inverter(charge &discharge)
BatteryDC
Disconnect
Utility
Customer
Customer’s DERFacility
Utility’s Radial DistributionPrimary 3-Phase, 4-Wire System
Primary Metering
MAININTERRUPTING
DEVICE
Main Bus
ESS Step-UpTransformer
Point of CommonCoupling (PCC) or Service
Point
Collector PV ArrayAC
Disconnect &O.C. Protection
Inverter
PV ArrayDC
Disconnect
Aux. Load Aux. Load
PV Array+ -
+ -
PV Step-UpTransformer
See Note 2
$
3b
UTILITY SERVICE METER
This diagram is representative ofone proposal and the utility may
require other configurations.
M
M
M UTILITY STORAGE METER
UTILITY PV GENERATION METER
All Meters >60 kW; Bi-directionalwith Telemetry
PremisesLoads
M
M
ESS DC Battery + STGU Paired AC Connection to Utility EPS 500kW and GreaterBehind the Meter MA SMART
ESS Battery
Utility
Customer
Customer’s DERFacility
Utility’s Radial DistributionPrimary 3-Phase, 4-Wire System
Primary Metering
MAININTERRUPTING
DEVICE
Main Bus
Point of CommonCoupling (PCC) or Service
Point MAINDISCONNECT
Collector PV ArrayAC
Disconnect &O.C. Protection
Inverter
PV ArrayDC
Disconnect
Aux. Load
PV Array+ -
+ -
PV Step-UpTransformer
PremisesLoads
See Note 2
$
(charge &discharge)
3c
UTILITY SERVICE METER
This diagram is representative ofone proposal and the utility may
require other configurations.
M
M
M UTILITY STORAGE METER
UTILITY PV GENERATION METER
All Meters >60 kW; Bi-directionalwith Telemetry
RETAIL
UTILITY – AREA EPS
INTERCONNECTIONCUSTOMER –
LOCAL EPS
PCC
PoC
Wh
REVENUE METERS ARE BI-DIRECTIONAL, NET METER AMR TYPE AND UTILITY OWNED.
METER LOCATIONS DETERMINED BY UTILITY FOR AMR ACCESS REQUIREMENTS.
Residential/Commercial DG CustomerStand Alone MA SMART < 60 kW
DG
Main ServiceEquipment
DG/DERProtection &
Control
Generator Disconnect
4a
$
Aux. Load
UTILITY SERVICE METER
This diagram is representative ofone proposal and the utility may
require other configurations.
Wh
Wh
Wh UTILITY STORAGE METER
UTILITY PV GENERATION METER
All Meters >60 kW; Bi-directionalwith Telemetry
RETAIL
UTILITY – AREA EPS
INTERCONNECTIONCUSTOMER –
LOCAL EPS
PCC
PoC
Wh
REVENUE METERS ARE BI-DIRECTIONAL, NET METER AMR TYPE AND UTILITY OWNED.
METER LOCATIONS DETERMINED BY UTILITY FOR AMR ACCESS REQUIREMENTS.
Residential/Commercial DG CustomerStand Alone MA SMART < 60 kW
With AC ESS SYSTEM
DG
Main ServiceEquipment
DG Protection& ControlGenerator Disconnect
4b
BatteryAC
Disconnect
BatteryStorage
Inverter(charge &discharge)
ESS System
$
Aux. Load
Wh
UTILITY SERVICE METER
This diagram is representative ofone proposal and the utility may
require other configurations.
Wh
Wh
Wh UTILITY STORAGE METER
UTILITY PV GENERATION METER
All Meters >60 kW; Bi-directionalwith Telemetry
See Note 9< 25 kWrequired formeteringtesting.
RETAIL
UTILITY – AREA EPS
INTERCONNECTIONCUSTOMER –
LOCAL EPS
PCC
PoC
Wh
REVENUE METERS ARE BI-DIRECTIONAL, NET METER AMR TYPE AND UTILITY OWNED.
METER LOCATIONS DETERMINED BY UTILITY FOR AMR ACCESS REQUIREMENTS.
Residential/Commercial DG CustomerSTAND ALONE MA SMART < 60 kW
With DC ESS SYSTEM
DG
Main ServiceEquipment
DG Protection& Control
Generator Disconnect
4c
BatteryStorage
Inverter(charge &discharge)
ESS System
$
Aux. Load
UTILITY SERVICE METER
This diagram is representative ofone proposal and the utility may
require other configurations.
Wh
Wh
Wh UTILITY STORAGE METER
UTILITY PV GENERATION METER
All Meters >60 kW; Bi-directionalwith Telemetry
Main ServiceEquipment
Utility
Customer
Wh
Main ServiceDisconnect
Main Distribution Panel
PVGeneratorDisconnect
Collector PVArray
ACDisconnect
PV Array
ServiceEntrance
Inverter(string)
Service Point or PCC
Generatoror DG
Facility
STGU AC Connection to Utility EPS 60 to 500kWStandalone MA SMARTUtility’s Radial Distribution
3-Phase, 4-Wire SystemSecondary Metering
+ -
+ -
5a
Note 10
$
Aux. Load
UTILITY SERVICE METER
This diagram is representative ofone proposal and the utility may
require other configurations.
Wh
Wh
Wh UTILITY STORAGE METER
UTILITY PV GENERATION METER
All Meters >60 kW; Bi-directionalwith Telemetry
Main ServiceEquipment
Utility
Customer
Main ServiceDisconnect
Main Distribution Panel
PVGeneratorDisconnect
Collector PVArray
ACDisconnect
PV Array
BatteryAC
Disconnect
BatteryStorage
ServiceEntrance
Inverter(string)
Inverter(charge &discharge)
Service Point or PCC
Generatoror DG
FacilityESS System
ESSDisconnect
AC ESS Battery + STGU Paired AC Connection to Utility EPS 60 to 500kWSTAND ALONE MA SMART
Utility’s Radial Distribution3-Phase, 4-Wire System
Secondary Metering
Wh
+ -
+ -
$
5b
Wh
Note 10 Note 10
Aux. Load
Wh
Note 10
UTILITY SERVICE METER
This diagram is representative ofone proposal and the utility may
require other configurations.
Wh
Wh
Wh UTILITY STORAGE METER
UTILITY PV GENERATION METER
All Meters >60 kW; Bi-directionalwith Telemetry
Main ServiceEquipment
Utility
Customer
Main ServiceDisconnect
Main Distribution Panel
PVGeneratorDisconnect
Collector PVArray
ACDisconnect
PV Array
BatteryStorage
ServiceEntrance
Inverter
(charge &discharge)
Service Point or PCC
Generatoror DG
Facility
ESS System
DC ESS Battery + STGU Paired AC Connection to Utility EPS 60 to 500kWSTAND ALONE MA SMART
Utility’s Radial Distribution3-Phase, 4-Wire System
Secondary Metering
+ -
+ -
$
5c
ServiceEntrance
Wh
ServiceEntrance
Note 10
Aux. Load
UTILITY SERVICE METER
This diagram is representative ofone proposal and the utility may
require other configurations.
Wh
Wh
Wh UTILITY STORAGE METER
UTILITY PV GENERATION METER
All Meters >60 kW; Bi-directionalwith Telemetry
Utility
Customer
Collector PVArray
ACDisconnect
PV Array
BatteryAC
Disconnect
BatteryStorage
Inverter(string)
Inverter(charge &discharge)
Service Point or PCC
Generatoror DG
FacilityESS System
ESSDisconnect
AC ESS Battery + Multiple STGU’s Paired AC Connection to Utility EPS 60 to 500kWWith Different Smart Incentive Rates if allowed
STAND ALONE MA SMARTUtility’s Radial Distribution
3-Phase, 4-Wire SystemSecondary Metering
Wh
+ -
+ -
5d
ServiceEntrance
Stand Alone DifferentArray with Different
Smart Incentive levels
Collector PVArray
ACDisconnect
Inverter(string)
Generatoror DG
Facility
+ -
+ -
WhPV
GENERATIONMETER 2
PVGeneratorDisconnect
PVGeneratorDisconnect
Note 10 Note 10
PV Array
$
$
Aux. Load
Wh
Main ServiceEquipment
Main ServiceDisconnect
Main Distribution Panel
UTILITY SERVICE METER
This diagram is representative ofone proposal and the utility may
require other configurations.
Wh
Wh
Wh UTILITY STORAGE METER
UTILITY PV GENERATION METERService Point or PCC
ServiceEntrance
Wh
PVGENERATION 2
All Meters >60 kW; Bi-directionalwith Telemetry
M
STGU AC Connection to Utility EPS 500kW and GreaterSTAND ALONE MA SMART
Utility
Customer
Customer’s DGFacility
Utility’s Radial DistributionPrimary 3-Phase, 4-Wire System
Primary Metering
MAININTERRUPTING
DEVICE
Main Bus
Point of CommonCoupling (PCC) or Service
Point
Collector PV ArrayAC
Disconnect &O.C. Protection
Inverter
PV ArrayDC
Disconnect
Aux. Load
PV Array+ -
+ -
PV Step-UpTransformer
See Note 2
$
6a
InterruptingDevice
UTILITY SERVICE METER
This diagram is representative ofone proposal and the utility may
require other configurations.
M
M
M UTILITY STORAGE METER
UTILITY PV GENERATION METER
All Meters >60 kW; Bi-directionalwith Telemetry
M M
M
AC ESS Battery + STGU Paired AC Connection to Utility EPS 500kW and GreaterSTAND ALONE MA SMART
ESS BatteryAC
Disconnect &O.C. Protection
ESS Battery
Inverter(charge &discharge)
BatteryDC
Disconnect
Utility
Customer
Customer’s DERFacility
Utility’s Radial DistributionPrimary 3-Phase, 4-Wire System
Primary Metering
MAININTERRUPTING
DEVICE
DER CustomerMain ServiceEquipment
ESS Step-UpTransformer
Point of CommonCoupling (PCC) or Service
Point
Collector PV ArrayAC
Disconnect &O.C. Protection
Inverter
PV ArrayDC
Disconnect
Aux. Load Aux. Load
PV Array+ -
+ -
PV Step-UpTransformer
See Note 2
$
6b
UTILITY SERVICE METER
This diagram is representative ofone proposal and the utility may
require other configurations.
M
M
M UTILITY STORAGE METER
UTILITY PV GENERATION METER
All Meters >60 kW; Bi-directionalwith Telemetry
M
DC ESS Battery + STGU Paired AC Connection to Utility EPS 500kW and GreaterSTAND ALONE MA SMART
ESS Battery
(charge &discharge)
Utility
Customer
Customer’s DERFacility
Utility’s Radial DistributionPrimary 3-Phase, 4-Wire System
Primary Metering
MAININTERRUPTING
DEVICE
Main Bus
Point of CommonCoupling (PCC) or Service
Point
Collector PV ArrayAC
Disconnect &O.C. Protection
Inverter
PV ArrayDC
Disconnect
Aux. Load
PV Array+ -
+ -
PV Step-UpTransformer
Customer’s Electrical Energy Sources (Current)
6c
$
UTILITY SERVICE METER
This diagram is representative ofone proposal and the utility may
require other configurations.
M
M
M UTILITY STORAGE METER
UTILITY PV GENERATION METER
All Meters >60 kW; Bi-directionalwith Telemetry