Advanced Energy

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Advanced Energy Revenue Management
SystemPresented by Mr. Arif Petiwala
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Topics

• Evolution of Metering
• Problem Definition
• Proposed Solution
• Features of AERMS
• Benefits of AERMS
• Case Study
• Summary

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Evolution of Metering
Ferrari meters
Electro-Mechanical meters
LCD Counter meter
Multifunctional meters
Multifunctional with AMR
Prepaid meters
Intelligent meters
Metering systems
System integration

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Problem Definition

• Manual Reading
• Prone to human error,
• Time consuming,
• Requires Physical access
• RS-232/ 485/ IR Port Do not travel distances
• Optical/ LPR/ IR ports Readings to be taken
  locally
• GSM/ GPRS
• High OpEx hence not suitable for mass
  deployment
• Tamper monitoring is Periodic is not real-time
• Retrofits are not reliable as it is susceptible
  to tampering use lot of additional wiring
  hardware

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Proposed Solution Typical Architecture
End to end solution for Metering, Billing, Load
management, Energy Audit MIS Report generation

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Communication Modelling

• WAN --gt GPRS/ Ethernet
• Independent from Polling Location
• Can support volume of data
• Reliable as well Universally available

DT Meter
Data Concen- trator
GPRS
GPRS
Vending Stations
Central Server
PLCc

• LAN --gt PLCc/ RF
• Minimum operating costs/node
• Distances limitation can be overcome with use of
  data concentrator
• Even HAN components like Remote Display can be
  Interfaced

Metering Units
Remote Displays
PLCc
GPRS --gt PLCc --gt PLCc

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Salient Features of AERMS

• End to end solution for Metering, Billing, Load
  management, Energy Audit MIS Report generation
• On-line Tamper detection and monitoring
• Scalability to include LT consumers
• Economical solution for AMR up to domestic
  consumer level
• Remote Connect/ Disconnect feature
• Split Metering option to restrict Tampering
• Migration between prepaid post paid without
  changing infrastructure
• Flexibility of having multiple tariff for
  different consumers
• Excellent Customer Interface, as he gets SMS for
  all transactions

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Benefits of AERMS

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Benefits of AERMS

• Bi-Directional Automatic Meter Reading
• Reliable Base Line Meter data
• Prompt billing every month at fixed date
• No intrusion at consumers premises
• Provides Pre-payment or Post-payment option
• Remote Connect/ Disconnect
• Can disconnect/reconnect customer based on
  defaults/ request
• Can use auto-disconnect if load limit exceed
• Online Event/ Tamper Detection
• Detects and reports any meter box opening
• Detects and reports any bypass of meter
• Reports zero consumption users daily

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Benefits of AERMS

• Intelligent Load Management
• Load limiting per connection
• Monthly consumption limit per connection
• Intelligent cut-off on occurrence of High voltage
  than limit
• Transformer level load monitoring to avoid
  overloading.
• Split Metering to restrict tampering
• Load switch option on to control consumer loads
  such as Geysers/AC such heavy loads etc
• Real Time Energy Audit
• Check-meters provide real-time periodic
  consumption report
• Gives a periodic input regarding loss per
  transformer

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Benefits of AERMS

• Saving on recurring meter reading cost
• Enhanced Installation Commission of system
• Ease of Maintenance reduces OM expenses
• Single vendor dependency for Billing MIS data
• Suitable for all types of consumers metering i.e.
  EHV/ Industrial/ Commercial/ Domestic (Multi
  function to Simple kWh Meter)
• Ease of Monitoring analysis as critical reports
  are formulated automatically
• No consumption in past 24 hours
• Energy Imbalance for a group of meter
• Disconnected consumers
• Events/ Tamper Report

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Case Study Alexandra (RSA)

• Number of Nodes 23,000
• Pre-project ATC losses 78
• Present ATC Losses 44
• Communication Used
• WAN GPRS
• LAN PLC

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Case Study Witbank (RSA)

• Number of Nodes 7,000
• Pre-project ATC losses 48
• Present ATC Losses 14
• Communication Used
• WAN GPRS
• LAN PLC

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Case Study NDPL, New Delhi (IN)

• Number of Nodes 500
• Pre-project ATC losses 74
• Present ATC Losses 44
• Communication Used
• WAN GPRS
• LAN PLC

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Summary
Technology is half the solution, the other half
remains in our mind and actions..

• AERMS is not only Metering, it has
• Metering 20
• Communication 40
• IT Framework 40

• This system supports dynamic implementation of
  tariff changes
• System Detects Anomaly/ Tampering sets online
  alarm, which is quite instrumental in ATC loss
  reduction.
• Intelligent Investment cover most of the aspect
  of Distribution Automation at very optimum cost.

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Thank you!