Guidelines on Advanced

metering infrastructure

Discussion

The Smart Grid Strategic Planning Process

Proposed SASGI Smart Grid Vision for South Africa

An economically evolved, technology enabled, electricity system that is intelligent,

interactive, flexible and efficient and will enable South Africa’s energy use to be

sustainable for future generations.

Clarity is provided on the meaning of certain of the words in the vision statement below.

Economically Evolved – affordable electricity system that meets the growing needs of the

economy

Technology enabled – fit for purpose ICT, processes, sensors, systems and applications

Intelligent – from data to knowledge

Interactive – ability to monitor, control and manage using two way communications

throughout the complete value chain

Flexible – appropriate, scalable and adaptable based on common standards

Electricity system – the complete value chain of all interconnected equipment and

components from generation to end use

Sustainable – optimised and affordable from environmental and economic perspectives

3

Coherent Tactical plans in support of the Utility Vision

Vision and Strategy

Level of service

Customer service

plan

HR PLan ICT PLan Asset

MGT Plan Financial

Plan

Marketing Plan

Operational Plans

Mo

nit

or

and

rev

iew

loo

p

Tactical Plans

Scope of Utility change

Utility Change Considerations

Smart Grid Transformation Framework

Utility.com

5 evolutionary steps to achieving the Smart Grid

Step 1: Intelligent device infrastructure

AMI, or Smart meters Distribution automation devices Demand response devices Substation IED controllers

Step 2: Communications infrastructure

Enterprise communications system for rapid and accurate transmission of data Integration of fibre and mesh broadband networks

Step 3 : Integration

Corporate IT systems integrated to allow rapid processing of Data Open architecture based design to facilitate sharing of information

Step 4: Analytical infrastructure

Development of new data analysis capabilities Increased ability to display information (in form of dashboards)

Step 5 : Optimisation

Capability of real-time optimisation of the distribution network performance Decisions based on near real-time information, no longer only historical data

Mat

uri

ty

Capability

Accelerated by DoE-EU donor funding

The Smart Grid Communication Physical Architecture

Key Point: The smartening of the electricity system is an evolutionary process and not a one time event

Telecommunications, the smart utility nervous system

Telecommunications – The Delivery of Data

The Telecommunications Grand Challenge

Smart Grid Telecommunication requirements guidelines

Important Aspects for designing of a Telecommunications strategy

Budget constraints and time frames

Applications/services required to run on the network

Bandwidth estimate of each application/service per user

Number of users to be connected on the network

Number of locations and users in that locations

Centralised vs. decentralised server architecture

Incase of centralized architecture, main and backup centres

Backbone media selection

– Wire vs. wireless

– OFC vs. copper

– Buried vs. overhead

– Own vs. lease

Last mile media selection

– Wire vs. wireless

– Own vs. VPN

Right of way availability

Opportunity

An opportunity exist to develop/amend an

Advanced metering Infrastructure guideline for

the Industry

Current situation

Several metros and Eskom have began

implementing smart metering projects in the

absence of a national guideline/standard

NRS049 standard is in draft and does not cover

all aspects when compared to what is being

done in other countries

NRS has not effectively dealt with AMI security

and customer privacy issues

Ideal situation

To modify/develop a national guideline/standard

that will allow utilities in South Africa to converge

in the way smart metering is rolled out in South

Africa

Solution

SASGI to develop a guideline to assist the

industry smart meter roll out

This is to be achieved by doing a comprehensive

literature review of what has been done

internationally and adapting it to our local

situation

Guidelines on Advanced Metering infrastructure: Electricity Authority New

Zealand

Advanced metering system

Specific AMI system requirements

Terms, conditions and pricing

Metrology

Measurement data recoding

Changes to firmware via communications systems

Meter reading

Management of load control

– Management of existing hot water loads

– Management of general demand response

– Management of additional load control potential

Data security

– Access

– Storage

– Transportation

Provision for the HAN interface

Provision for customer displays

Premises disconnection and reconnections

Prepayment

Parameter setting

Event log recoding

Multiple load control systems

Safety

AMI security Requirements

General system description

– Use cases

– Billing

– Customer

– Distribution system

– Installation

– System

System context

System constraints

Security states and modes

Security objectives

User characteristics

AMI security Requirements System security requirements

– Primary security services

– Confidentiality and privacy

– Integrity

– Availability

– Identification

– Authentication

– Authorisation

– Non repudiation

– accounting\

– Supporting security services

– Anomaly detection services

– Boundary services

– Cryptographic services

– Notification and signalling services

– Resource management services

– Trust and certification services

– Assurance

– Development rigor

– Organisational rigor

– Handling operation rigor

– Accountability

– Access control

Considerations

If smart metering efforts are not done to some

sort of industry standard, than we could end up

with a number of project failures.

Smart metering could end up with a bad name

which could increase customer resistance to the

technology.

Large number of reported failures stem from

poorly addressing the telecommunications and

back office integration aspects

Representative SG Standards

C12.18

C12.19

C12.22

M-Bus

Zigbee

Wi-Fi

SAE J2293

SAE J2836

SAE J2847

IEEE P2030

BACnet

OpenADR

DRBizNet

IEC 61850

DNP3

Distributed Energy

Resources

IEC 61400-25

IEEE 1547

Commercial user

Residential user PHEV

Wind farm

IEC 61850-7-420

Smart

meter

Wi-Fi

SUN

3G/4G Cellular

Substation

Wide Area Network

Home Area Network

Neighbour Area Network

3G/4G

Cellular Wi-Fi

SONET

WiMAX

IEC 61850

DNP3

CIM Control center

The IT Battleground

Example of AMI deployment

Source: Black and Veatch

Way forward

Technology and Standards work group to review

international work and develop a guideline for

the South African industry

Participate in formalising the NRS 049 standard

Review of SA grid code

Development of customer code

Review of Distribution system operator code

Smart meter installation practice code

Disclaimer

These guidelines set out recommendations relating to the

introduction of new technology for metering and the

supporting infrastructure.

The guidelines also outline participants’ obligations for

situations where new meters are installed for new and

existing consumers.

The advanced metering guidelines are not legally

binding, rather are intended to be advisory.

In line with its objective to persuade and promote rather

than regulate, SASGI recommends that the guidelines be

followed.