AMR & EMS- Automated Meter Reading and Energy Management System

National Power Training Institute(NR)

AT & C loss reduction by IT AT & C loss reduction by IT interfaceinterface


ContentsContents

Smart Metering and IT: An opportunity to Leapfrog

AMR (Automated Meter Reading)EMS (Energy Management System)Prepaid Meters


Smart Metering and IT

PASTELECTRO-MECHANICAL• Low Accuracy• Control – NIL• Communications - Expensive• Theft Detection – Poor


Continued…

DIGITAL SOLID STATE High Accuracy Control – LIMITED Communications – External through Retrofit Theft Detection – Node only

PRESENT


Continued…

LEAPFROGNEXT GEN SMART METER & IT SYSTEM• Very High Accuracy• Control – FULL• Communications – Built in (on chip / PCB)• Theft Detection – High (Network level)


AUTOMATIC METER READING SYSTEM


WHAT is WHAT is AMRAMR????

Automatic Meter Reading– Automating the process of

measurement and control through digital communication techniques.

– Bring “intelligence” into the revenue cycle and manage it.

Metering Billing Operations Customer Service


WHY AMR NEEDED in place of current Stand-alone meter reading??

Present System Problems:- Highly Person dependant. Human errors cannot be avoided. Accessibility of meters in rural/ Agricultural zones. Energy Audits performed based on bill collection which is

highly inaccurate. Billing done mainly on estimated/ monthly average basis Inability to monitor and control discrete loads Billing cycle requires excessive time. Meter data used only for billing, cannot help in analysis like

demand analysis, energy audit, pinpointing losses, etc.


Benefits of AMRBenefits of AMR

Ability to detect tamper events and outage occurrences. Remotely Connect/ Disconnect power supply through

meter. Calculate Transformer loading and Sizing from interval

data. 15 minute interval data gives accurate load information for

supply scheduling, switching operations, planning etc. Monitor voltage at each premise to know conditions when

to operate capacitor switches or regulators. Consistent and Granular data for improved accuracy.


Automatic MeteringAutomatic Metering

Automatic

Meter

Reading

Automatic

Meter

Reading

Outage

Manage

ment

Pre-

payment

Sub-

MeteringRevenue Protectio

n

Automatic Metering Active

Load

Control


AMR ARCHITECTURE RF/ PSTN / Modem RF/PSTN / Modem Meter 1 Meter 1 Meter 1

Meter 2 Meter 2 Meter 2 Meter 3 Meter 3 Meter 3

Meter 4 Meter 4 Meter 4 Meter 5 Meter 5 Meter 5 Meter n Meter n Meter n

Central Office Host Computer

Station.

Distribution Transformer 2.



Data Cocentrator Unit DCU 2



PL

CC

PL

CC

PL

CC


AMR architecture for consumers


COMPONENTSCOMPONENTS

Meter Interface ModuleCommunication SystemCentral Office Equipment


Meter interface moduleMeter interface module

– The AMR system starts at the meter. Some means of translating readings from rotating meter dials, or cyclometer style meter dials, into digital form is necessary in order to send digital metering data from the customer site to a central point.

– Electro - optical interface– Signal Processing Electronics– RAM & Program Memory


GSM / CDMA Based CommunicationGSM / CDMA Based Communication

MODEM

Dual Band or Triband modem or CDMA modems Designed for GPRS, data, fax, SMS and voice applications Interfaces RS-232 through D-TYPE 9 pin connector Power supply SMA antenna connector Toggle spring SIM holder Red LED Power on Green LED status of GSM / CDMA module

Antenna


Central office systemsCentral office systems

Central office systems equipment includes– Modems– Central server – Client Software for data acquisition and

data analysis


ELECTRIC COMPANY BENEFITSELECTRIC COMPANY BENEFITS

Smart automated processes instead of manual work Accurate information from the network load to optimise

maintenance and investments Customized rates and billing dates. Streamlined high bill investigations. Detection of tampering of Meters. Accurate measurement of transmission losses. Better network performance and cost efficiency. Demand and distribution management. More intelligence to business planning. Better company credibility.


CUSTOMER BENEFITS

Precise consumption informationClear and accurate billing

– Automatic outage information – Better and faster customer service


ENERGY MANAGEMENT SYSTEMENERGY MANAGEMENT SYSTEM(EMS)(EMS)


Energy Management System (EMS) Energy Management System (EMS) ExperienceExperience

Why EMS…EMS provides real time solution in the area of power and energy management

Energy Management System (EMS) provides access to real time energy data for energy auditing and monitoring.

AT&C Loss Reduction

Quality of Supply

Customer Satisfaction

EMS helps DESCOM to achieve the objectives


System OverviewSystem Overview

EMS with end-to-end infrastructure comprising of intelligent metering systems network equipments, communication backbone data handling software.

The system provides meter data on real time basis

Its systematic acquisition, storage and retrieval of data ensures MIS for business purposes Faster decision making Quality of Supply


Features of EMSFeatures of EMS

Parameters Captured– Instantaneous voltage, Current– Frequency– KW, KVA, KVAr per phase & Total– KWH, KVAh, KVArh– PF

All feeder locations at 118 grids

Communicates with 2500 no feeder meters

At every 15 minute interval

2 lac data every single day

System Generates application reports

6000 Users in BSES can access these reports online

Data Historian of 4 years

EMS also converts Data into Useful Information


EMS is based on data collection and analysis. EMS is based on data collection and analysis. Entire activity has following stagesEntire activity has following stages

Data Collection

Data Processing

Data Converted into useful information- For online availability

Analysis and Conclusion

Data Generation


Application Reports on EMSApplication Reports on EMS

Bill Verification – EHV Loss Audit Grid Loss Audit Division /Company Manager Feeder wise energy on daily basis- interactive

software Energy forecasting Grid Alarm ABT Report and UI


PREPAID METERSPREPAID METERS


PREPAID METERS-AdvantagesPREPAID METERS-Advantages

For meter owner Assured revenue and reduced working capital costs Lower overheads Better load management and higher capacity utilization Improved fraud detection Quicker connections and better customer-service

For end-consumer Better budgeting Promotes energy savings and energy conservation Avoid long queues – choose when to pay No billing errors Convenient mode of payment


System at workSystem at work

The consumer inserts the pre-paid card in the energy meter

The value (Credit + Any information) in the card is transferred to the meter

The meter keeps track of the number of units consumed as per the slab rate

When the value in the meter comes to 10-20% a signal is given -either beep or red light

When the value in the meter becomes nil the electricity supply is cut off


ApplicationsApplications

Large-scale deployment by utilities for residential andcommercial connections

Sub-metering in apartments, shopping malls andbuilding complexes.

Convenient mode of payment in housing colonies As a second meter between utility meter and

distribution board for housing tenants Selective deployment by utilities in regions with poor

credit history Electricity supply for vendors, contractors and temporary

connections


Summing up…Summing up…

Prepaid Smart Card Solution is idealReduces manpower cost to the EBImproves liquidity of the EBOverall efficiency in operations of

the EB will improveHassle free for the consumerPrepaid cards easily available


Cost analysis and effectiveness of Cost analysis and effectiveness of AMRAMRBilling structure infoCost of AMR based on GSM/ CDMASavings on Operating cost inclusive

of administrative costAT & C loss reduction report for an

utility of NCR by the usage of IT system


COST OF EQUIPMENTS USED IN COST OF EQUIPMENTS USED IN AMRAMR

•GSM modem ------------ Rs. 5000-6000•CDMA modem ------------ Rs. 4200-5000•Electronic Meter ------------ Rs. 1500-1800 (for 1Φ)with RS-232 port•Electronic Meter ------------ Rs. 4300-5000 (for 3Φ)with RS-232 port•GSM modem ------------ Rs. 5000-8000(With optical port adapter)

•Prepaid meters ------------Rs 6000(1Φ), 11000 (3Φ)

(All the data is provided by various vendors)


Present billing structurePresent billing structure

• Data collection time - 7 days Data processing time - 2 days Bill dispatch +Due date time - 18 days Cost of (PDS) per device cost - 10,000 Expenditure per head on work force

employed for collecting meter reading-Rs.10000

Time interval for data collection – 1 Month

(Based on data provided by an utility in NCR and vendors)


Cost involvementCost involvement for new system for new system (AMR)(AMR)

Total consumers-1127875 Total cost (GSM modem + electronic

meter with RS 232 port + software + operational cost per year)-Rs. 7.9 Billion (approx)

Total cost (CDMA modem + rest all above)-Rs. 6.44 Billion (approx)

(consumers are 1-Φ,based on data provided by an utility in NCR and vendors)


Cost involvementCost involvement for upgrading for upgrading existing system(AMR)existing system(AMR)

Total consumers-1127875Total cost (GSM modem with optical

port adapter + software + operational cost per year)- Rs. 6.20 Billion (approx)



AMR reduces theft, improves AMR reduces theft, improves efficienciesefficiencies

Meter readings for close to 15,000 high-end customers done remotely from a central location.

Collection efficiency has improved by 5-10 percent, theft has reduced by 4 percent

The firm has recovered the initial project cost, pegged at around Rs 22 crore

(Data for an utility in NCR)


Cost involvementCost involvement for new system for new system (Pre-Paid metering system)(Pre-Paid metering system)

Total consumers-1127875Total cost of involved in installing

prepaid meters + software-Rs. 6.20 Billion (approx)



WAYS OF COLLECTING WAYS OF COLLECTING REVENUEREVENUE

By imposing cost on consumer onper month basis for 5 years recoveryplan for new systemFor GSM modem with Electronic

meter having RS 232 port-Rs 116.74 For CDMA modem with Electronic

meter having RS 232 port-Rs. 95.16For Pre-Paid meters- Rs. 91.62


Continued…Continued…

By imposing cost on consumer on

per month basis for 5 years recovery

plan for upgrading existing systemGSM with optical port adapter-Rs.

91.62


Continued…Continued…

If SERC allows to increase per unit

charges for 5 years recovery plan For new GSM Based system-18paisa(approx) For new CDMA Based system-15 paisa(approx) For upgrading existing system-14 paisa(approx)

For new Prepaid meters-14 paisa(approx)


Savings…Savings…

Saving with respect to existing

system with meter readers= Rs 7.8 crores + saving in cost of the

administration for meter readers


THANK YOU FOR HAVING THANK YOU FOR HAVING PATIENCEPATIENCE

AMR & EMS- Automated Meter Reading and Energy Management System

Engineering

Transcript of AMR & EMS- Automated Meter Reading and Energy Management System