IEC 62325-351:2013

Framework for energy market communications - Part 351: CIM European market model exchange profile

IEC 62325-351:2013 specifies a UML package which provides a logical view of the functional aspects of European style market management within an electricity markets. This package is based on the common information model (CIM). The use of the CIM goes far beyond its application in a market management system.

Cadre pour les communications pour le marché de l'énergie - Partie 351: Profil de modèle d'échange pour un système de gestion de marché de style européen basé sur le CIM

La CEI 62325-351:2013 spécifie un paquetage UML qui fournit une présentation logique des caractéristiques fonctionnelles d'un système de gestion de marché de style européen utilisé au sein de marchés de l'électricité. Ce paquetage est basé sur le CIM. L'utilisation du CIM est plus large que son application dans un système de gestion de marché.

General Information

• Status: Published
• Publication Date: 25-Sep-2013
• ICS: 33.200 - Telecontrol. Telemetering
• Technical Committee: TC 57 - Power systems management and associated information exchange
• Drafting Committee: WG 16 - TC 57/WG 16
• Current Stage: DELPUB - Deleted Publication
• Start Date: 15-Jun-2016
• Completion Date: 26-Oct-2025

Relations

• Revised: IEC 62325-351:2016 - Framework for energy market communications - Part 351: CIM European market model exchange profile
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 62325-351 ®
Edition 1.0 2013-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Framework for energy market communications –
Part 351: CIM European market model exchange profile

Cadre pour les communications pour le marché de l'énergie –
Partie 351: Profil de modèle d'échange pour un système de gestion de marché
de style européen basé sur le CIM

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IEC 62325-351 ®
Edition 1.0 2013-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Framework for energy market communications –

Part 351: CIM European market model exchange profile

Cadre pour les communications pour le marché de l'énergie –

Partie 351: Profil de modèle d'échange pour un système de gestion de marché

de style européen basé sur le CIM

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX XB
ICS 33.200 ISBN 978-2-8322-1088-8

– 2 – 62325-351 © IEC:2013
CONTENTS
FOREWORD . 6
INTRODUCTION . 8
1 Scope . 9
2 Normative references . 9
3 Terms and definitions . 9
4 European style market concepts . 11
4.1 From the CIM information model to the European style market profile . 11
4.1.1 General . 11
4.1.2 Applying the framework to the European style electricity market . 12
4.1.3 Examples for building a European style market profile . 12
4.2 European style market package structure . 14
4.3 The European electricity market concepts . 15
4.4 Business process modelling . 16
4.5 Business rules for the European style market profile . 17
4.5.1 General . 17
4.5.2 Identification of an ESMP electronic document . 17
4.5.3 Time . 18
4.5.4 Coding scheme identification . 18
4.5.5 Direction of flow within TimeSeries . 18
4.5.6 Quantity within a TimeSeries . 19
5 Detailed model . 22
5.1 Documentation structure . 22
5.2 Overview . 23
6 Package architecture . 25
6.1 European style market classes . 25
6.1.1 European style market profile – detailed overview . 25
6.1.2 IsBasedOn relationships from the CIM Information Model . 26
6.1.3 Package ESMPClasses . 26
6.2 European style market DataTypes . 42
6.2.1 IsBasedOn relationships from the CIM Information Model . 42
6.2.2 Package ESMPDataTypes . 43
6.2.3 Enumeration DataTypes . 53
Annex A (informative) European style market code lists – Package
ESMPEnumerations . 54
Bibliography . 61

Figure 1 – IEC 62325-450 modelling framework . 11
Figure 2 – Example of restrictions applied to CIM for a profile. 13
Figure 3 – Overview of European style market profile dependency . 14
Figure 4 – Curve – “Points” (24 hour day with a 4 hour resolution) . 20
Figure 5 – Curve – “Sequential fixed size blocks” (24 hour day with a 4 hour resolution) . 20
Figure 6 – Curve – “Variable sized blocks” (24 hour day with a 4 hour resolution) . 21
Figure 7 – Curve – “Non-overlapping breakpoint” (24 hour day with a 4 hour resolution) . 21
Figure 8 – Curve – “Overlapping breakpoint” (24 hour day with a 4 hour resolution) . 22

62325-351 © IEC:2013 – 3 –
Figure 9 – Overview of European style market profile . 24
Figure 10 – European style market profile – classes . 25
Figure A.1 – Class diagram ESMPenumerations – example . 54

Table 1 – Attribute documentation example . 23
Table 2 – Association Ends documentation example . 23
Table 3 – Enumeration documentation example . 23
Table 4 – Compound Datatype documentation example . 23
Table 5 – IsBasedOn relationship from the CIM information model . 26
Table 6 – Attributes of ESMPClasses::AceTariffType. . 27
Table 7 – Association ends of ESMPClasses::AceTariffType with other classes. . 27
Table 8 – Attributes of ESMPClasses::AttributeInstanceComponent. . 27
Table 9 – Attributes of ESMPClasses::Auction. . 28
Table 10 – Attributes of ESMPClasses::BidTimeSeries. . 28
Table 11 – Attributes of ESMPClasses::Currency_Unit. . 29
Table 12 – Attributes of ESMPClasses::DateAndOrTime. . 29
Table 13 – Attributes of ESMPClasses::Domain. . 30
Table 14 – Attributes of ESMPClasses::FlowDirection. . 30
Table 15 – Attributes of ESMPClasses::MarketAgreement. . 31
Table 16 – Attributes of ESMPClasses::MarketDocument. . 31
Table 17 – Association ends of ESMPClasses::MarketDocument with other classes. . 32
Table 18 – Attributes of ESMPClasses::MarketEvaluationPoint. . 33
Table 19 – Attributes of ESMPClasses::MarketObjectStatus. . 34
Table 20 – Attributes of ESMPClasses::MarketParticipant. 34
Table 21 – Association ends of ESMPClasses::MarketParticipant with other classes. . 34
Table 22 – Attributes of ESMPClasses::MarketRole. . 35
Table 23 – Attributes of ESMPClasses::Measure_Unit. . 35
Table 24 – Attributes of ESMPClasses::MktPSRType. . 35
Table 25 – Attributes of ESMPClasses::Point. . 35
Table 26 – Association ends of ESMPClasses::Point with other classes. . 36
Table 27 – Attributes of ESMPClasses::Price. . 36
Table 28 – Attributes of ESMPClasses::Process. . 37
Table 29 – Attributes of ESMPClasses::Reason. . 37
Table 30 – Attributes of ESMPClasses::RegisteredResource. . 37
Table 31 – Association ends of ESMPClasses::RegisteredResource with other classes. . 38
Table 32 – Attributes of ESMPClasses::Series_Period. . 38
Table 33 – Association ends of ESMPClasses::Series_Period with other classes. . 38
Table 34 – Attributes of ESMPClasses::Time_Period. . 38
Table 35 – Association ends of ESMPClasses::Time_Period with other classes. . 39
Table 36 – Attributes of ESMPClasses::TimeSeries. . 39
Table 37 – Association ends of ESMPClasses::TimeSeries with other classes. . 40
Table 38 – IsBasedOn relationship from the CIM information model . 42
Table 39 – Attributes of ESMPDataTypes::Action_Status. . 43

– 4 – 62325-351 © IEC:2013
Table 40 – Attributes of ESMPDataTypes::ESMP_DateTimeInterval. . 44
Table 41 – Attributes of ESMPDataTypes::AllocationMode_String. 44
Table 42 – Attributes of ESMPDataTypes::Amount_Decimal. . 44
Table 43 – Attributes of ESMPDataTypes::AreaID_String. . 45
Table 44 – Attributes of ESMPDataTypes::AttributeValue_String. . 45
Table 45 – Attributes of ESMPDataTypes::AuctionKind_String. . 45
Table 46 – Attributes of ESMPDataTypes::BusinessKind_String. . 45
Table 47 – Attributes of ESMPDataTypes::CapacityContractKind_String. . 46
Table 48 – Attributes of ESMPDataTypes::Category_String. . 46
Table 49 – Attributes of ESMPDataTypes::ClassificationKind_String. . 46
Table 50 – Attributes of ESMPDataTypes::CurrencyCode_String. . 46
Table 51 – Attributes of ESMPDataTypes::CurveType_String. . 46
Table 52 – Attributes of ESMPDataTypes::DirectionKind_String. 47
Table 53 – Attributes of ESMPDataTypes::EnergyProductKind_String. . 47
Table 54 – Attributes of ESMPDataTypes::ESMP_DateTime. . 47
Table 55 – Attributes of ESMPDataTypes::ESMPBoolean_String. . 47
Table 56 – Attributes of ESMPDataTypes::ESMPVersion_String. . 48
Table 57 – Attributes of ESMPDataTypes::ID_String. . 48
Table 58 – Attributes of ESMPDataTypes::MarketRoleKind_String. . 48
Table 59 – Attributes of ESMPDataTypes::MeasurementPointID_String. . 49
Table 60 – Attributes of ESMPDataTypes::MeasurementUnitKind_String. . 49
Table 61 – Attributes of ESMPDataTypes::MessageKind_String. . 49
Table 62 – Attributes of ESMPDataTypes::ObjectAggregationKind_String. . 49
Table 63 – Attributes of ESMPDataTypes::PartyID_String. . 50
Table 64 – Attributes of ESMPDataTypes::PayloadId_String. . 50
Table 65 – Attributes of ESMPDataTypes::Position_Integer. . 50
Table 66 – Attributes of ESMPDataTypes::PriceCategory_String. . 50
Table 67 – Attributes of ESMPDataTypes::PriceDirection_String. . 50
Table 68 – Attributes of ESMPDataTypes::ProcessKind_String. . 51
Table 69 – Attributes of ESMPDataTypes::PsrType_String. . 51
Table 70 – Attributes of ESMPDataTypes::ReasonCode_String. . 51
Table 71 – Attributes of ESMPDataTypes::ReasonText_String. . 51
Table 72 – Attributes of ESMPDataTypes::ResourceID_String. . 52
Table 73 – Attributes of ESMPDataTypes::RightsKind_String. . 52
Table 74 – Attributes of ESMPDataTypes::Status_String. . 52
Table 75 – Attributes of ESMPDataTypes::TariffKind_String. . 52
Table 76 – Attributes of ESMPDataTypes::YMDHM_DateTime. . 53
Table 77 – List of Enumeration Types . 53
Table A.1 – Literals of ESMPEnumerations::AllocationModeTypeList . 54
Table A.2 – Literals of ESMPEnumerations::AssetTypeList . 55
Table A.3 – Literals of ESMPEnumerations::AuctionTypeList . 55
Table A.4 – Literals of ESMPEnumerations::BusinessTypeList . 55
Table A.5 – Literals of ESMPEnumerations::CategoryTypeList . 55

62325-351 © IEC:2013 – 5 –
Table A.6 – Literals of ESMPEnumerations::ClassificationTypeList . 56
Table A.7 – Literals of ESMPEnumerations::CodingSchemeTypeList . 56
Table A.8 – Literals of ESMPEnumerations::ContractTypeList . 56
Table A.9 – Literals of ESMPEnumerations::CurrencyTypeList . 57
Table A.10 – Literals of ESMPEnumerations::CurveTypeList. 57
Table A.11 – Literals of ESMPEnumerations::DirectionTypeList . 57
Table A.12 – Literals of ESMPEnumerations::EnergyProductTypeList . 58
Table A.13 – Literals of ESMPEnumerations::IndicatorTypeList . 58
Table A.14 – Literals of ESMPEnumerations::MessageTypeList . 58
Table A.15 – Literals of ESMPEnumerations::ObjectAggregationTypeList . 58
Table A.16 – Literals of ESMPEnumerations::ProcessTypeList . 59
Table A.17 – Literals of ESMPEnumerations::ReasonCodeTypeList . 59
Table A.18 – Literals of ESMPEnumerations::RightsTypeList . 59
Table A.19 – Literals of ESMPEnumerations::RoleTypeList . 60
Table A.20 – Literals of ESMPEnumerations::StatusTypeList . 60
Table A.21 – Literals of ESMPEnumerations::TarifTypeTypeList . 60
Table A.22 – Literals of ESMPEnumerations::UnitOfMeasureTypeList . 60

– 6 – 62325-351 © IEC:2013
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FRAMEWORK FOR ENERGY MARKET COMMUNICATIONS –

Part 351: CIM European market model exchange profile

FOREWORD
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International Standard IEC 62325-351 has been prepared by IEC technical committee 57:
Power systems management and associated information exchange.
The text of this standard is based on the following documents:
FDIS Report on voting
57/1373/FDIS 57/1389/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all the parts in the IEC 62325 series, published under the general title Framework for
energy market communications, can be found on the IEC website.

62325-351 © IEC:2013 – 7 –
The committee has decided that the contents of this publication will remain unchanged until
the stability 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.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
– 8 – 62325-351 © IEC:2013
INTRODUCTION
This International Standard is part of the IEC 62325 series for deregulated energy market
communications.
The principal objective of the IEC 62325 series of standards is to produce standards which
facilitate the integration of market application software developed independently by different
vendors into a market management system, between market management systems and
market participant systems. This is accomplished by defining message exchanges to enable
these applications or systems access to public data and exchange information independent of
how such information is represented internally.
The common information model (CIM), i.e. IEC 62325-301, IEC 61970-301 and IEC 61968-11
standards, specifies the basis for the semantics for message exchange.
The European style market profile is based on different parts of the CIM IEC standard and
specifies the business processes and the content of the messages exchanged.
This part of IEC 62325 provides the European style market profile specifications that support
the European style design electricity markets. These electricity markets are based on the
European regulations, and on the concepts of third party access and zonal market. This part
of IEC 62325 was originally based upon the work of the European Transmission System
Operators (ETSO)) and then on the work of the European Network of Transmission System
Operators (ENTSO-E) on electronic data interchange.

62325-351 © IEC:2013 – 9 –
FRAMEWORK FOR ENERGY MARKET COMMUNICATIONS –

Part 351: CIM European market model exchange profile

1 Scope
This part of IEC 62325 is applicable to European style electricity markets.
This part of IEC 62325 specifies a UML package which provides a logical view of the
functional aspects of European style market management within an electricity markets.
This package is based on the common information model (CIM). The use of the CIM goes far
beyond its application in a market management system.
Due to the size of the complete CIM, the object classes contained in the CIM are grouped into
a number of logical packages, each of which represents a certain part of the overall power
system being modelled. Collections of these packages are progressed as separate
International Standards.
From the CIM packages, regional contextual models are built to cover the market information
interchange requirements for a given region, i.e. the business context. A region may be a
continent where common electricity market designs are used for the exchange of information
(Europe, North America, Asia, etc.). It may also be a specific country or an organization that
has particular needs and wishes to benefit from the CIM.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and
are indispensable for its application. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 61970-2:2004, Energy management system application program interface (EMS-API) –
Part 2: Glossary
IEC 62325-450:2013, Framework for energy market communications – Part 450: Profile and
context modeling rules
IEC 62361-100 , Power systems management and associated information exchange –
Interoperability in the long term – Part 100: Naming and design rules for CIM profiles to XML
schema mapping
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 61970-2, as well as
the following apply.
3.1
aggregate business information entity
ABIE
re-use of an aggregate core component (ACC) in a specified business

To be published.
– 10 – 62325-351 © IEC:2013
3.2
aggregate core component
ACC
collection of related pieces of business information that together convey a distinct business
meaning, independent of any specific business context
Note 1 to entry: Expressed in modelling terms, this is the representation of an object class, independent of any
specific business context.
[SOURCE: ISO/TS 15000-5:2005, Clause 9]
3.3
application program interface
API
set of public functions provided by an executable application component for use by other
executable application components
[SOURCE: IEC 61970-2:2004, 3.4]
3.4
based on
IsBasedOn
use of an artefact that has been restricted according to the requirements of a specific
business context
[SOURCE IEC 62325-450:2013, 3.4]
3.5
business context
specific business circumstance as identified by the values of a set of context categories,
allowing different business circumstances to be uniquely distinguished
[SOURCE: ISO/TS 15000-5:2005, 4.6.2]
3.6
information model
information model is a representation of concepts, relationships, constraints, rules, and
operations to specify data semantics for a chosen domain of discourse
Note 1 to entry: It can provide shareable, stable, and organized structure of information requirements for the
domain context.
3.7
internal European market
IEM
market of any commodity, service, etc. within the European Community
Note 1 to entry: In particular, European Directives and Regulation are defining the energy IEM.
3.8
market management system
MMS
computer system comprised of a software platform providing basic support services and a set
of applications that provide the functionality needed for the effective management of the
electricity market
Note 1 to entry: These software systems in an electricity market may include support for capacity allocation,
scheduling energy, ancillary or other services, real-time operations and settlements.

62325-351 © IEC:2013 – 11 –
3.9
profile
basic outline of all the information that is required to satisfy a specific environment
4 European style market concepts
4.1 From the CIM information model to the European style market profile
4.1.1 General
The European style market profile is a regional contextual model as defined in
IEC 62325-450. IEC 62325-450 provides the contextual derivation rules to be applied from the
abstract CIM core concepts to generate the regional contextual model.
The common information model (CIM) is an abstract model. A CIM-compliant implementation
does not need to include all classes, attributes, or associations in the CIM standard. Profiles
are defined to specify which elements shall be included, i.e. mandatory elements, in a
particular use of the CIM, as well as which elements are optional.
As stated in IEC 62325-450 and outlined in Figure 1, the definition of CIM profiles follows a
layered modelling framework from the CIM information model down to the specification of
messages based on CIM concepts through the definition of different regional contextual
models and their subsequent contextualized documents for information exchange.
IEC  2202/13
Figure 1 – IEC 62325-450 modelling framework
From the CIM which provides the overall semantic model for the electricity industry, regional
contextual models are built to cover the electricity market information interchange
requirements for a given region, i.e. the business context, in compliance with IEC 62325-450
rules.
– 12 – 62325-351 © IEC:2013
The European style market profile (ESMP) is a regional contextual model based on the CIM
artefacts where some particular artefacts are refined respecting a set of defined rules to cater
for specific European style market requirements. These artefacts are based on the CIM
artefacts on which they are built.
The European style market profile is the cornerstone to derive contextualized documents
catering for specific information interchange functional requirements. These document
contextual models are defined in other standards of the IEC 62325 series; and a dedicated
IEC 62325-451-x (x going from 1 to n) per main business process describes the related
information interchange requirements. Additional constraints are thus introduced on the
European style market profile on which they are built.
The final modelling step applies standardized message assembly rules in order to provide an
information structure for information interchange. All syntactic specific electronic documents
are built from the message assembly models. This last level is covered by IEC 62361-100.
4.1.2 Applying the framework to the European style electricity market
Within Europe a target has been defined for the implementation of the energy internal
European market (IEM) and in particular the electricity market. The harmonization of business
processes has been carried out in particular for the data interchange between market
participants such as transmission system operators (TSO), distribution system operators
(DSO), balance responsible parties, etc. These business processes address a number of
energy market activities such as congestion management, scheduling, reserve resource
management, explicit auction for transmission capacity, settlement, reconciliation, etc.
The result of this harmonization work has been taken into account to define the European
style market profile based on the CIM UML model. The European style market profile is thus a
regional contextual model as defined in IEC 62325-450.
The European style market profile is a first level of contextual model that covers generically
all the required information conveyed in the different exchanged messages gathered by the
defined business processes.
The European style market profile is therefore the smallest sub-set of the CIM information
model, derived by restrictions, from which all the exchanges of information are derived for all
the European market business processes.
4.1.3 Examples for building a European style market profile
Each UML artefact can be potentially restricted in order to refine and define the business
requirements applied to the current European style market profile.
The example in Figure 2 illustrates how the CIM information model is restricted into a profile
for the European style market.
a) Classes: it is possible to restrict each class of the CIM by selecting a subset of its attribute
list since all CIM attributes are optional (i.e. their multiplicity is 0.1). For example, the CIM
MarketDocument class is restricted into the profile class with only two attributes, mRID
and type.
b) Attributes: it is possible to restrict each attribute in the profile by applying restrictions to its
related datatypes (see Datatypes below) and its multiplicity. The new multiplicity shall be
included in the multiplicity from the parent BasedOn class. For example, in the European
style market profile, the attribute mRID from MarketParticipant is mandatory (i.e.
multiplicity = 1.1) while in the parent BasedOn class from the CIM, the attribute is optional
(i.e. multiplicity = 0.1).
To be published.
62325-351 © IEC:2013 – 13 –
c) Relationships: it is possible to restrict each relationship between CIM Classes at the
profile level. The kinds of restriction uniquely concern the multiplicity and qualification of
the end role.
d) Datatypes: it is possible to restrict the CIM Datatypes by defining facets on the value
space of the datatype. For example, the CIM attribute type of MarketDocument is a CIM
String while in the profile it is restricted by an enumeration (i.e. MessageTypeList) to
indicate the list of valid types for a MarketDocument.
class ESMPProfileExample
CIM Information Model
Document
Organisation
MarketManagement::MarketDocument
MarketCommon::MarketParticipant
::Document
::Organisation
+ type :String [0.1]
+ streetAddress :StreetAddress [0.1]
+ createdDateTime :DateTime [0.1]
+ postalAddress :PostalAddress [0.1]
+ lastModifiedDateTime :DateTime [0.1]
+ phone1 :TelephoneNumber [0.1]
+ revisionNumber :String [0.1]
+ phone2 :TelephoneNumber [0.1]
+ electronicAddress :ElectronicAddress [0.1]
+ electronicAddress :ElectronicAddress [0.1]
+ subject :String [0.1] +MarketDocument
::IdentifiedObject
+ title :String [0.1]
+ aliasName :String [0.1]
0.* 0.*
+ docStatus :Status [0.1]
+ mRID :String [0.1]
+MarketParticipant
+ status :Status [0.1]
+ name :String [0.1]
::IdentifiedObject
+ aliasName :String [0.1]
+ mRID :String [0.1]
+ name :String [0.1]
«IsBasedOn»
«IsBasedOn»
European Style Market Profile
+MarketDocument 0.*
«ACC»
«ACC»
ESMPClasses::
ESMPClasses::MarketDocument
+MarketParticipant
MarketParticipant
+ mRID :ID_String [0.1]
0.*
+ type :MessageKind_String [0.1] + mRID :PartyID_String
«CIMDatatype»
ESMPDataTypes::PartyID_String
«CIMDatatype»
ESMPDataTypes::ID_String + value :String
+ value :String
«Restriction»
{Facet maxLength=16
«Restriction»
for attribute value of PartyID_String}
{Facet maxLength=35
for attribute value of ID_String}
«enumeration»
ESMPEnumer ations::MessageTy peList
Balance responsible schedule
Allocated capacity schedule
«CIMDatatype»
Balance area schedule
ESMPDataTypes::MessageKind_String
System Operator area schedule
Final confirmation report
+ value :MessageTypeList
Finalised schedule
Aggregated energy data report
Imbalance report
Interconnection Capacity
IEC  2203/13
Figure 2 – Example of restrictions applied to CIM for a profile
NOTE in the examples, the list of attributes and enumerated literals are not complete. They are just given as
examples.
– 14 – 62325-351 © IEC:2013
4.2 European style market package structure
Figure 3 shows the main package structure of this profile that is composed of:
• ESMPClasses: Defining all the contextual classes of the European style market profile
(ESMP) derived by restriction from the CIM information model.
• ESMPDataTypes: Defining all the core datatypes used within the ESMP classes.
• ESMPEnumerations: Defining the name of all the allowed enumerations for the value
space of some of the ESMP datatypes.
IEC  2204/13
Figure 3 – Overview of European style market profile dependency

62325-351 © IEC:2013 – 15 –
The European style market is use case oriented and is based on business processes along
with their document exchanges. Each document is a sub contextual model derived by
restriction from the European style market profile.
All the core datatypes used in every document are merged, harmonized and centralized in the
European style market profile. Therefore each exchanged document is indicating the reuse of
core datatypes that have been defined only once in the European style market profile.
4.3 The European electricity market concepts
Europe has promoted the development of an energy IEM. This energy IEM, which has been
progressively implemented since 1999, aims to deliver a real choice to all consumers in order
to achieve efficiency gains, competitive prices and higher standards of service, and to
contribute to security of supply and sustainability.
The development of the energy IEM was based on the “historical” area of each transmission
system operator (TSO). Thus, the concept of a zonal model appeared to be quite natural as:
• Each TSO has developed its transmission network in order to reduce the congestion within
its area.
• The development of interconnections was mainly made for security and synchronization
reasons.
In a zonal model, transactions are commercially and physically cleared regardless of the
location within a market or a bidding area. A reference energy price for a market area or a
bidding area is defined usually by a power exchange or a market operator. Bilateral trade may
however coexist with exchange trading.
It should be pointed out that there are different implementations of the zonal model:
• A number of countries have a single price on their hub.
• Some countries have created “bidding areas” within their market area, each bidding area
could have a different price.
• Market splitting: Some countries have grouped their market areas managed through a
single power exchange. It is only when congestion appears that the market area is split
into bidding areas with different prices.
• Market coupling: Some countries have grouped their market areas into a single area, but
keeping a power exchange per area. It is only when congestion appears that the market
area is split into bidding areas with different prices.
Network congestion within a bidding area is mainly managed by the system operator (SO)
through redispatching. Congestion between bidding areas is managed by the system operator
(s) and/or the market operator (s) and/or the power exchange (s) either through transmission
capacity auctions or through market coupling or market splitting.
In particular, all network studies or assessment of network security are carried out by the
transmission system operators. Dedicated processes are defined between the transmission
system operators in order to ensure a proper and transparent operation of the market. These
processes are not intended to be described within this standard as they are related to a
specific profile, i.e. IEC 61970-452, and the associated IEC 61970-552-4. It should be
underlined that the results of these studies and assessment are taken into account as
“external” constraints by the electricity market.
The energy prices are usually based on the transaction prices between the market
participants in a market area or bidding area and are based
...