IEC/TR 62325-101

Framework for energy market communications - Part 101: General guidelines

Gives technology independent general guidelines applicable for e-business in energy markets based on Internet technologies providing: a description of the energy market specific environment; a description of the energy market specify requirements for e-business; an example of the energy market structure; an introduction to the modelling methodology; network configuration examples; a general assessment of communication security.

Krovni podatki za komunikacije na energijskem trgu - 101. del: Splošne smernice

General Information

• Status: Not Published
• ICS: 33.200 - Telecontrol. Telemetering
• Technical Committee: TC 57 - Power systems management and associated information exchange
• Current Stage: PPUB - Publication issued
• Start Date: 07-Feb-2005
• Ref Project: oSIST-TP IEC/TR 62325-101:2009 - Framework for energy market communications - Part 101: General guidelines

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST-TP IEC/TR 62325-101:2009
01-december-2009
Krovni podatki za komunikacije na energijskem trgu - 101. del: Splošne smernice
Framework for energy market communications - Part 101: General guidelines
Ta slovenski standard je istoveten z: IEC/TR 62325-101
ICS:
33.200 Daljinsko krmiljenje, daljinske Telecontrol. Telemetering
meritve (telemetrija)
oSIST-TP IEC/TR 62325-101:2009 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST-TP IEC/TR 62325-101:2009

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oSIST-TP IEC/TR 62325-101:2009


TECHNICAL IEC


REPORT TR 62325-101





First edition
2005-02


Framework for energy market communications –
Part 101:
General guidelines

 IEC 2005  Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
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Telephone: [phone] Telefax: [phone] E-mail: [e-mail] Web: www.iec.ch
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W

International Electrotechnical Commission
Международная Электротехническая Комиссия
For price, see current catalogue

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oSIST-TP IEC/TR 62325-101:2009
– 2 – TR 62325-101  IEC:2005(E)
CONTENTS
FOREWORD.4
INTRODUCTION.6
1 Scope .8
2 Normative references .8
2.1 Generic Open-edi standards .8
2.2 Sectorial Open-edi standards.9
3 Terms, definitions and abbreviations .9
3.1 Terms and definitions .9
3.2 Abbreviations .9
4 Energy market requirements .10
4.1 Communication and data networks.10
4.2 Business areas and processes.11
4.3 Performance.14
4.4 Quality of service.15
5 Application of the Open-edi reference model .16
5.1 The Open-edi reference model.16
5.2 Market structure and business views.17
6 The Open-edi architecture for deregulated energy markets.17
6.1 Delimitation: market versus process.17
6.2 Conventions .18
6.3 Business and information model.20
6.4 Market identification schema.23
7 Security.24
8 Typical network configurations .26
8.1 Peer-to-peer.26
8.2 Portal .27
8.3 Enterprise Application Integration (EAI).28
8.4 Business Process Management Systems (BPMS).29

Annex A (informative) Security .30
Annex B (informative) IEC TR 62210 security .33

Figure 1 – Energy market communication over the Internet.11
Figure 2 – Energy supply chain .12
Figure 3 – The Open-edi reference model .16
Figure 4 – Energy market structure and views .17
Figure 5 – Example of use of XKMS within a public key infrastructure (PKI) .25
Figure 6 – PKI-profile for interfaces between PKI components (example) .26
Figure 7 – Network configurations .28
Figure 8 – IEC 61968 compliant middleware services for distribution management .29
Figure B.1 – Security aspects of energy market communications .34

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oSIST-TP IEC/TR 62325-101:2009
TR 62325-101  IEC:2005(E) – 3 –
Table 1 – Type of data networks .11
Table 2 – Business areas, processes and market participants.13
Table 3 – Performance requirements.14
Table 4 – Reliability .15
Table 5 – Security.16
Table 6 – UMM workflow.19
Table 7 – Example workflow with drill down .19
Table 8 – UMM model deliveries .22
Table 9 – Security technologies .25
Table A.1 – Mandatory features of XML signature and XML encryption with MIME.31
Table A.2 – Mandatory features of S/MIME v3 .31
Table A.3 – Mandatory features of XML signature and encryption with MIME .32
Table B.1 – Definitions of security issues .35
Table B.2 – Recommended security objectives .35
Table B.3 – Mapping of security objectives to transport security functions.36
Table B.4 – Mapping of maximum security objectives to application security functions .36

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INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

FRAMEWORK FOR ENERGY MARKET COMMUNICATIONS –

Part 101: General guidelines


FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote interna-
tional co-operation on all questions concerning standardization in the electrical and electronic fields. To this
end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Techni-
cal Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”).
Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject
dealt with may participate in this preparatory work. International, governmental and non-governmental organiza-
tions liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Or-
ganization for Standardization (ISO) in accordance with conditions determined by agreement between the two
organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all inter-
ested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinter-
pretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence be-
tween any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equip-
ment declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and ex-
penses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publica-
tions.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
The main task of IEC technical committees is to prepare International Standards. However, a
technical committee may propose the publication of a technical report when it has collected
data of a different kind from that which is normally published as an International Standard, for
example "state of the art".
IEC 62325-101, which is a technical report, has been prepared by IEC technical committee
57: Power systems management and associated information exchange.
The IEC 62325 series cancels and replaces IEC 62195 (2000) and its amendment (2002).
It constitutes a technical revision.
IEC 62195 (2000) dealt with deregulated energy market communications at an early stage. Its
amendment 1 (2002) points out important technological advancements which make it possible
to use modern internet technologies based on XML for e-business in energy markets as an
alternative to traditional EDI with EDIFACT and X12. The new IEC 62325 framework series for
energy market communications currently consisting of IEC 62325-101, IEC 62325-102,
IEC 62325-501, and IEC 62325-502 follows this direction and replaces IEC 62195 together
with its amendment.

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oSIST-TP IEC/TR 62325-101:2009
TR 62325-101  IEC:2005(E) – 5 –
The text of this technical report is based on the following documents:
Enquiry draft Report on voting
57/704/DTR 57/721/RVC

Full information on the voting for the approval of this technical report can be found in the re-
port on voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
IEC 62325 consists of the following parts, under the general title Framework for energy mar-
ket communications:
Part 101: General guidelines
Part 102: Energy market model example
1
Part 201: Glossary
2
Part 3XX: (Titles are still to be determined)
3
Part 401: Abstract service model
Part 501: General guidelines for use of ebXML
Part 502: Profile of ebXML
3
Part 503: Abstract service mapping to ebXML
3
Part 601: General guidelines for use of web services
3
Part 602: Profile of Web Services
3
Part 603: Abstract service mapping to web services
The committee has decided that the contents of this publication will remain unchanged until
the maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in
the data related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual edition of this document may be issued at a later date.

———————
1
 Under consideration. Because the technologies have an inherent own glossary within their standard definitions,
2)
this glossary is a placeholder for a glossary for future parts indicated with including energy market specific
terms and definitions.
2
 Under consideration. These parts for business content are mentioned for completeness only with a number
space as placeholder. They extend the original scope and require an agreed new work item proposal for further
work based on an overall strategy how to proceed.
3
 Under consideration. These technical parts are mentioned for completeness with provisional title. They extend
the original scope and require an agreed new work item proposal for further work.

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– 6 – TR 62325-101  IEC:2005(E)
INTRODUCTION
With the transition of monopoly energy supply structures to deregulated energy markets, the
function of the markets depends heavily on seamless e-business communication between
market participants. Compared with global e-business, e-business in the energy market is
only a small niche. Today, UN/EDIFACT or ANSI ASC X12 messages, or proprietary HTML
and XML solutions based on Internet technologies are being used. With the advent of new e-
business technologies such as ebXML by UN/CEFACT (United Nations / Centre for Trade and
Electronic Business) together with OASIS (Organization for the Advancement of Structured
Information Standards), and Web Services by W3C (World Wide Web Consortium) and OASIS
based on Internet technologies, an energy market specific profile of these standards can be
used for regional energy markets. These profiles allow the re-use of proven core components
and communication platforms across markets, thus saving cost and implementation time. Be-
cause some of these technologies are still under development, other technologies or con-
verged technologies are not excluded for the future.
The IEC 62325 series includes, besides general requirements and guidelines, the business
operational view with profiles of technical e-business communication architectures together
with migration scenarios. The process and information model as well the abstract service
model is not included in the first edition of the IEC 62325 series but may be added in the fu-
ture. It does not itself define standards and only references available standards.
It supports the communication aspects of all e-business applications in deregulated energy
markets with emphasis on system operators. The business operational view includes the mar-
ket communication aspects of system operator applications with interfaces to other market
participants from trading over supply to balancing planned generation and consumption,
change of supplier, market services and billing.
The ‘process’ real-time communication of energy systems is beyond the scope of the
IEC 62325 series.
The IEC 62325 series is subject to legal and security aspects of e-business and energy mar-
ket rules that may be different from country to country or region to region.
It is important to note that the IEC 62325 series specifies no “content” (market model with
processes, collaborations, transactions, messages, core components) because energy mar-
kets still vary. The specific content modelling of regional markets is subject of regional pro-
jects and/or may be candidate for future standardisation extending the IEC 62325 series. But
methods and tools of modelling are described and in part 102 non-normative examples of core
models, processes and messages, which show how the IEC 62325 series might be used.
Note that work is in progress at UN/CEFACT regarding the “content” of business information
exchange for example as Core Components (UN/CEFACT – Core Components Technical Speci-
fication), Core Component Library (CCL, accessible through an registry/repository), Catalogue
of Core Components (including industry groups), Common Business Processes, UMM Busi-
ness Library, XML message design rules (UN/CEFACT – XML Naming and Design Rules
(Draft 2004)).
The energy market specific vocabulary can be derived from Core Components or/and a
knowledge based energy market information model (for example the so called CIM market
extension of the CIM Common Information Model (IEC 61970-301)).
Whereas IEC 62325-501 and IEC 62325-502 of the current IEC 62325 series edition are re-
stricted to the use of the ebXML technology, the planned technical parts are intended to con-
vert the framework into a more open framework taking into account also other e-business
technologies besides ebXML, as Web Services with future IEC 62325-6XX. This may also in-
clude with future IEC 62325-401 an abstraction service model with mapping to the various e-
business technologies (future IEC 62325-503, and future IEC 62325-603) to hide the e-
business technology actually used from the application.

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TR 62325-101  IEC:2005(E) – 7 –
It is important to note that the definition of a full and detailed energy market model is beyond
the scope of the IEC 62325 series, because energy markets are different. But what might be
included in future with the future IEC 62325-3XX is an extensible and adaptable core set of
information model definitions in UML which can be used as an vocabulary for the interface of
utilities to the market together with XML schema design rules for the mapping from UML to
XML, and market identification schemas. This would enable and support, but not restrict, par-
ties of the energy market to define complete energy market models in detail.

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FRAMEWORK FOR ENERGY MARKET COMMUNICATIONS –

Part 101: General guidelines



1 Scope
This part of IEC 62325 gives technology independent general guidelines applicable for e-
business in energy markets based on Internet technologies providing:
• a description of the energy market specific environment;
• a description of the energy market specify requirements for e-business;
• an example of the energy market structure;
• an introduction to the modelling methodology;
• network configuration examples;
• a general assessment of communication security.
2 Normative references
The following referenced documents are indispensable for the application of this document.
For dated references, only the edition cited applies. For undated references, the latest edition
of the referenced document (including any amendments) applies.
2.1 Generic Open-edi standards
The IEC 62325 series is based on ISO/IEC 14662 and Internet technologies, notably on XML
(Extensible Markup Language) of the W3C (Word Wide Web Consortium) with references to
existing or emerging standards or de-facto standards for global e-business.
IEC 60870-6 (all parts), Telecontrol equipment and systems – Part 6: Telecontrol protocols
compatible with ISO standards and ITU-T recommendations
IEC 61968 (all parts), Application integration at electric utilities – System interfaces for distri-
bution management
IEC 61970 (all parts), Energy management system application program interface (EMS-API)
IEC 62210, Power system control and associated communications – Data and communication
security
ISO/IEC 14662, Information technology – Open-edi reference model
ANSI ASC X12, Release 4040, December 2000
UN/EDIFACT, D.01A Directory, January 2001
UN/CEFACT Modelling Methodology (UMM), NO90 R12 or higher
UN/CEFACT Meta Model, NO90 R10 or higher

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oSIST-TP IEC/TR 62325-101:2009
TR 62325-101  IEC:2005(E) – 9 –
4
UN/CEFACT XML Naming and Design Rules, draft 2004
UN/CEFACT Core Components Technical Specification
In this part of IEC 62325, RFCs (Request For Comments) from the Internet Engineering Task
Force (IETF) and recommendations from other Organisations such as the Word Wide Web
Consortium (W3C) and the Organization for the Advancement of Structured Information Stan-
dards (OASIS) are mentioned which are not included here because these documents are re-
ferred to in the references above.
2.2 Sectorial Open-edi standards
Market modelling based on this implies to some extent sectorial standards. At the moment no
references are given.
3 Terms, definitions and abbreviations
3.1 Terms and definitions
None.
3.2 Abbreviations
A2A Application-to-Application
AES Advanced Encryption Standard
B2B Business-to-Business
BDS Business Document Specification (instance)
BDSS Business Document Specification Schema
BIE Business Information Entity
BOV Business Operational View
BPMS Business Process Management System
BPSS Business Process Specification Schema (or instance)
BSI Business Service Interface
CC  Core Component (based on BIE)
CIM Common Information Model
CPA Collaboration Protocol Agreement
CPP Collaboration Protocol Profile
DSO Distribution System Operator (of power system)
DUNS Data Universal Numbering System (North America)
EAN European Article Number (Europe)
ebXML electronic business XML
EDI Electronic Data Exchange
EIA Enterprise Application Integration
EMS Energy Management Systems
ERP Enterprise Resource Planning
FOV Functional Service View
FTP File Transfer Protocol
———————
4
 Under consideration.

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HTTP Hypertext Transport Protocol
ICT Information and Communication Technology
ISO Independent System Operator
IT  Information Technology
MIME Secure/Multipurpose Internet Mail Extensions
MIS Market Identification Schema
MOM Message-oriented middleware
MSH Message Service Handler
PKI Public Key Infrastructure
QoS Quality of Service
RPC Remote Procedure Call
RR  Registry / Repository
SAML Security Assertion Mark-up Language
SCADA Supervision, Control, and Data Acquisition
SMTP Simple Mail Transfer Protocol
SO  System Operator (of power system)
SOAP Simple Object Access Protocol
TLS Transport Layer Security
TSO Transmission System Operator (of power system)
UML Unified Modelling Language
UMM UN/CEFACT Modelling Methodology
VPN Virtual Private Network
WS  Web Services
WSDL Web Services Definition Language
XML eXtensible Markup Language
XKMS XML Key Management Specification.

4 Energy market requirements
4.1 Communication and data networks
Many market participants need to communicate with each other in the energy market. In the
IEC 62325 series, it is assumed that e-business in energy markets makes use of Internet,
which is public, unreliable and insecure in a reliable and secure manner (see Figure 1).

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TR 62325-101  IEC:2005(E) – 11 –

Process data with
IEC 60870-6 (TASE.2),
Business data, .
System operators
Extranet
Central
ISO‘s
clearing
services
Traders
Power Internet
exchange
Suppliers
Transmission
Distribution
Services
Generation
(metering, .)
IEC  178/05

Figure 1 – Energy market communication over the Internet
Within the market, other types of networks besides the Internet also are possible by agree-
ment, as shown by Table 1.
Table 1 – Type of data networks
Network Features Remark
Internet Cheap, unreliable, insecure Public
Virtual private network (VPN) Secure logical network in the Inter- Uses the Internet in a closed user
net group for trusted partners
Extranet Private physically separated network For trusted partners

It is important to note that the relationship of market participants for communication purposes
follows more the ‘one-to-many’ then the general ‘any-to-any’ pattern. For example transmis-
sion system operators and power exchanges have a ‘one-to-many’ relationship to traders.
Clearing service providers, for example for change of suppliers, have a one-to-many relation-
ship to distribution service providers and suppliers. Energy brokers providing trading informa-
tion do not trade themselves and have a ‘one-to-many’ relationship with traders. From this
point of view, it is natural that the communication hubs at the “one-to” end of the relationship
are responsible in order to define the business communication interfaces for the correspond-
ing market participants in a harmonised and standardized fashion, based on an agreed tech-
nology. Because e-business technologies are positioned for global e-business of any busi-
ness, including discovery of a priori unknown business partners, the many options of this
technologies should be reduced to a minimal profile that satisfies the requirements.
4.2 Business areas and processes
In the energy market, energy is generated (electricity) or produced (gas), traded (wholesale)
and supplied (retail) to the customer (consumption). At every moment, generation and supply
should be in balance and the security of the energy network should be granted. Producers
and customer have non-discriminatory access to the energy network and customers can
chose their supplier in a deregulated market. The commercial use of energy networks for
transmission and distribution is transparent to the market participants regardless of the physi-
cal structure (voltage level, hierarchy, control areas involved). The market also needs ser-
vices to support the core functions such as registration of market participants and network
access, change of supplier, relocation of customers, metering and collection of metering data,
settlement of accounts, and billing.

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Figure 2 shows a high-level presentation of the supply chain of energy with basically three
main phases: In the trading planning phase, energy consumption is forecast and trading is
planned. In the trading operational phase, energy is traded to meet the forecast, and respec-
tive generation resources are allocated. The implementation of the physical energy path from
generation over the transmission and distribution network to consumption affords co-ordinated
planning of balanced schedules in the system operation planning phase for generation, im-
port/export and consumption. In the system operation operational phase, energy flows directly
from the producer to the customer over the transmission and distribution network. System op-
eration guarantees that in this phase, generation meets consumption in real-time (balancing)
and that the system is reliable. Many services are needed to support the core processes. In
the settlement phase, for example, the settlement service provides the means to bill con-
sumption and imbalances. Any imbalance of operation (difference between schedules and
metered generation and consumption) is in the financial responsibility of the Balance-
Responsible Parties (traders and others).

Services (registration, metering, settlement, billing)
Sell energy
Change of supplier
Generation
generation
Trading Supply
trading supply  C  coonnssumumptioptn ion
pproduroductiocntion
Net access Net access
Power flow
Transmission, distribution
System operation (scheduling and balancing)
IEC  179/05

Figure 2 – Energy supply chain
Table 2 identifies the business areas, processes within the areas and the involved roles of
market participants. For an informative simplified market model which serves only for the pur-
pose of giving a specific context to e-business in energy markets refer to IEC
...