1. Smart Prepayment Solutions for PV/SSEG

2. What is AMI (aka Smart Metering)?
Advanced Metering Infrastructure (AMI)
AMI is a smart metering solution that provides two way communications between an AMI system and various metering devices
An AMI system is capable of collecting & analysing meter data, including meter energy usage, events, power quality information and many more
AMI is an end-to-end solution, including, systems, Data Concentrators, metering devices and Customer Interface Units (CIU)

3. Why use AMI / SMART Prepayment Solution?
REDUCE DEBTS / ARREARS
Late/non payments
Increasing debt / arrears
MONITOR FRAUD
Preventing revenue collection
REMOTE METER ACCESS
Field evaluations
Customer queries
Prepayment (upfront)
Arrears collection through vending system
Tamper functionality
Fraud monitoring with AMI system
Remote meter reading
Auditing of the meters (from your office)
REDUCE ADMIN. COSTS
Disconnect/reconnect remotely
PV/SSEG Support
Import and export energy measurement
LOAD MANAGEMENT
Remote changes to demand thresholds
Remote connect & disconnect of supply control switch
Four quadrant measurement & charge registers for prepayment
AMI system
Change monitored threshold value (+P)
End to end functional integrity
From initial site audits to backend system implementation the integrity of the system is maintained

4. Smart Prepayment Functionality

5. Smart Prepayment Functionality
Data Concentrator
Local & Remote Communications
Core Smart Meter Functionality
Real Time Clock (RTC)
4 Quadrant Measurement
Time of Use (TOU)
Core STS Prepayment Functionality
Data collection
Diagnostics
Account (Prepayment / Post-payment)
Energy registers
Data Uploads
STS token transfer
Charge Registers
Load Profiles
Upgrades
G3-PLC
Total Export Charge
Total Import Charge
Billing / Daily Profiles
IEC /51
Token Transfer
kWh
Standard Event logs
Token Transfer
Currency
Prepayment Event logs
Fraud Detection logs
Power Quality profile
Load Management
Supply Control Switch
1ph DIN-Rail Smart Prepayment meter

6. Prepayment Charge Register Objects
Mode: Prepayment Account
Charge Register (-A)
Total Reverse Energy
Decrement Account
Neutral effect
Increment the Account
Charge Register (+A)
Total Forward Energy
Decrement Account

7. Energy Registers Energy Registers
Four (4) quadrant measurement provides for :
-- Import [forward] energy (taken from network)
-- Export [reverse] energy (generated by alternative source OR reverse connection)
-- Active and reactive energy registers
-- Rated energy registers (for each available TOU rate)

8. Mains Quality Profile Information

9. Typical smart prepayment meters

10. Solution Overview

11. Technology & Platform - Overall Solution
Data Collection
Data validation, Storage, Billing
CIM
Interval & register data
AMR
MDMS
Bill cycle meter data
Meter information
Asset & Work Order Management
HES
Distribution Operations, SCADA, GIS
Meter transactions
SAP
HES
STS prepay tokens
Customer data, transactions, arrears
WAN
Utility vending and management
Customer data, billing values
Smart STS Prepay meters DC
Vending System
e-data warehouse
Cashiers
Administrators
Engineering Tokens
Consumer
Customer Portal
Customer’s Interface
Banking
Meter
3rd party service providers
Field Technician
Consumer

12. Data Concentrator – Web Interface
Overview
The DC450 has a powerful Web interface that enables detailed DC configuration and visibility of PLC communications statistics
Main Functions
Device configuration
Gathering extensive communication statistics per device
Access the device communication statistics
Manually adapt parameters
Execute direct commands
Send PING commands to individual or group of meters
Monitor G3-PLC communication in real time
Graphical view of the G3 PAN topology
Powerful Utility Engineer’s tool to analyse communications

13. DC Web Interface – G3 PAN Topology
P160 Customer Interface Unit
E460 Smart Meter
E460 Smart Meter
DC450 G3-PLC Concentrator

14. Typical Installation – Split Smart meters
BENEFITS:
Enhanced revenue protection
Remote meter auditing- reduced operational cost
Read meter registers remotely
Load limiting, tamper sensing, power quality data for improved network analysis
Remote disconnection and reconnection
Import and export registers (for PV/SSEG support)
Remote device firmware update
House
The Customer Interface Unit (CIU) simply plugs into electrical outlet in the house. The CIU provides an interface for the customer to check electricity consumption, rate information, instantaneous power etc.
In prepayment mode, the customer may enter credit tokens into the keypad
G3-PLC
Data Concentrator
SMART Split Meter
The split meter is typically installed outside the house, in a street or pole top kiosk
The PLC communications links the CIU to the meter.
The CIU must be paired to the meter (using meter serial number)
Customer Interface Unit G3-PLC
G3-PLC
G3-PLC

15. Device Management (HES)
Tasks
Scheduling of tasks
Reading tasks (e.g. reading registers)
Control tasks (e.g. remote disconnect)
Summary of tasks shows status of each task and whether the task was successfully executed or not

16. AMI System – Dashboard Views

17. AMI System – Dashboard Views

18. Instantaneous Values - Locally
Meter instantaneous values may be read using a meter software tool
Prepayment values may be saved in text file format or exported to MS Excel
Powerful on site (or workshop) fault finding features which enables the analysis & capture of instantaneous values on site
Same values may be remotely read by the Smart Meter system

19. Instantaneous Values - Remotely
When meter is installed in an on-line mode, with Data Concentrator and Smart Meter System, then available instantaneous values may be accessed remotely
-- Prepayment credit
-- Power quality information
-- Voltage, current, PF, frequency, power etc.
Powerful remote auditing and fault finding features
Reduces operating costs of the utility as this level of meter analysis and auditing can be done by Utility Engineers from the office

20. Standards & Specifications

21. Important International & Open Specifications
Enterprise Systems
Web services
IEC series for application integration between Enterprise Resource Planning Systems: (ERPS), MDMS, HES and other external systems
Meter Data Management System (MDMS)
Vending System
IEC Common Information Model (CIM)
Head-end System (HES)
IEC62056 suite (dlms), IPV6, TCP/UDP
Network Gateway (DC)
Metering Device
Metering Device
Metering Device
IEC /51
IEC /51
IEC /51

22. Important functionality to specify
Important smart & prepay functionality to specify in respect to SSEG and PV
Four (4) quadrant measurement
Separate import and export energy registers (+A, -A)
Separate import and export power registers (+P, -P)
Customer interface or meter’s display must show direction indicators
Customer interface or meter’s display must provide access to all energy registers (import and export)
Meter must support net energy register (import – export)
Meter’s prepayment account must support charge registers
Prepayment charge register functionality
Ability to set charge to be neutral, decrement or increment the prepayment account
Ability to be able to set a ratio value of payback to the prepayment account for reverse or export energy