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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.