AMR & EMS- Automated Meter Reading and Energy Management System

National Power Training Institute(NR)
AT & C loss reduction by ITAT & 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
PAST
ELECTRO-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…
LEAPFROG
NEXT 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 isWHAT 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-
Metering
Revenue
Protection
Automatic
Metering Active
Load
Control

AMR architecture for
consumers

COMPONENTSCOMPONENTS
Meter Interface Module
Communication System
Central 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 information
Clear 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 and
commercial connections
 Sub-metering in apartments, shopping malls and
building 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 ideal
Reduces manpower cost to the EB
Improves liquidity of the EB
Overall efficiency in operations of
the EB will improve
Hassle free for the consumer
Prepaid cards easily available

Cost analysis and effectiveness ofCost analysis and effectiveness of
AMRAMR
Billing structure info
Cost of AMR based on GSM/ CDMA
Savings on Operating cost inclusive
of administrative cost
AT & C loss reduction report for an
utility of NCR by the usage of IT
system

COST OF EQUIPMENTS USED INCOST 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 systemfor 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 upgradingfor upgrading
existing system(AMR)existing system(AMR)
Total cost (GSM modem with optical
port adapter + software + operational
cost per year)- Rs. 6.20 Billion
(approx)

AMR reduces theft, improvesAMR 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 systemfor new system
(Pre-Paid metering system)(Pre-Paid metering system)
Total cost of involved in installing
prepaid meters + software-Rs. 6.20
Billion (approx)

WAYS OF COLLECTINGWAYS OF COLLECTING
REVENUEREVENUE
By imposing cost on consumer on
per month basis for 5 years recovery
plan for new system
For GSM modem with Electronic
meter having RS 232 port-Rs 116.74
For CDMA modem with Electronic
meter having RS 232 port-Rs. 95.16
For 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 system
GSM 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 HAVINGTHANK YOU FOR HAVING
PATIENCEPATIENCE

AMR & EMS- Automated Meter Reading and Energy Management System

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AMR & EMS- Automated Meter Reading and Energy Management System