WG 16 - TC 57/WG 16

IEC 62325-503:2018 specifies a standard for a communication platform which every Transmission System Operator (TSO) in Europe can use to exchange reliably and securely documents for the energy market. Consequently a European market participant (TSO, regional supervision centre, distribution utility, power exchange, etc.) could benefit from a single, common, harmonised and secure platform for message exchange with other participants; thus, reducing the cost of building different information technology (IT) platforms to interface with all the parties involved. This edition cancels and replaces IEC TS 62325-503 published in 2014.
This edition includes the following significant technical changes with respect to the previous edition:
a) Use of ISO/IEC 19464:2014, Advanced Message Queuing Protocol (AMQP) v1.0 specification;
b) Splitting of the node described in the IEC TS 62325-503:2014 into a broker that implements the messaging function and a directory;
c) Increase of operability and resilience of the communication system with the ability for an endpoint to send and receive messages through several brokers;
d) Benefits of standardisation, performance and scalability of the AMQP protocol for transferring messages.

IEC 62325-451-6:2018 specifies a UML package for the market information publication business process and its associated document contextual models, assembly models and XML schemas for use within the European-style electricity markets. This standard is based on the European-style market contextual model (IEC 62325‑351). The relevant aggregate core components (ACCs) defined in IEC 62325-351 have been contextualised into aggregated business information entities (ABIEs) to satisfy the requirements of the European-style market publication business process.
This new edition includes the following significant technical changes with respect to the previous edition:
Addition of a new model allowing to publish information about the transmission capacity allocation participants.
Updates allowing to publish information about implicit transmission allocations on third countries borders, to publish outage related to consumption units and to publish information for resource object that can either consume or generate.

IEC 62325-301:2018 specifies the common information model (CIM) for energy market communications. The CIM facilitates integration by defining a common language (i.e. semantics) based on the CIM to enable these applications or systems to access public data and exchange information independent of how such information is represented internally. The object classes represented in the CIM are abstract in nature and may be used in a wide variety of applications. The use of the CIM goes far beyond its application in a market management system. This new edition of IEC 62325-301 contains support for demand-side communication within a wholesale market. The IEC 62325-301 additions include support for demand-side resource registration and enrollment of a market participating resource as well as support for deployment and performance evaluation of demand side resources. A new package has been included in this edition of IEC 62325-301 to support environmental (weather) data.

IEC 62325-451-3:2014 specifies a package for the transmission capacity allocation business process through explicit or implicit auctions and the associated document contextual models, assembly models and XML schema for use within European style markets. This International standard is based on the European style market contextual model (IEC 62325-351). The relevant aggregate core components (ACCs) defined in IEC 62325-351 have been contextualised into aggregated business information entities (ABIEs) to satisfy the requirements of these business processes. The contextualised ABIEs have been assembled into the relevant document contextual models.

IEC 62325-451-4:2017 specifies a package for the settlement and reconciliation business process and the associated document contextual model, assembly model and XML schema for use within European style markets. The relevant aggregate core components (ACCs) defined in IEC 62325-351 have been contextualised into aggregated business information entities (ABIEs) to satisfy the requirements of this business process. The contextualised ABIEs have been assembled into the relevant document contextual models. Related assembly models and XML schema for the exchange of information between market participants are automatically generated from the assembled document contextual models.
This part of IEC 62325 provides a uniform layout for the transmission of aggregated data in order to settle the electricity market. It is however not the purpose of this document to define the formula to be taken into account to settle or reconcile a market. The purpose of this document is only to enable the information exchange necessary to carry out the computation of settlement and reconciliation.
The settlement process or reconciliation process is the way to compute the final position of each market participant as well as its imbalance amounts.
This new edition includes the following significant technical changes with respect to the previous edition:
- removal of the attributes “quantity” and “secondary quantity” of the class “Point”;
- introduction of the classes “Quantity” and "Reason" from IEC 62351-351 UML package.

IEC 62325-451-1:2017 specifies a UML package for the acknowledgment business process and its associated document contextual model, assembly model and XML schema for use within the European style electricity markets. The relevant aggregate core components (ACCs) defined in IEC 62325-351 have been contextualized into aggregated business information entities (ABIEs) to satisfy the requirements of the European style market acknowledgment business process. The contextualized ABIEs have been assembled into the acknowledgment document contextual model. This new edition includes the following significant technical changes with respect to the previous edition:
- addition of an optional attribute ProcessType to the acknowledgement document to ease routing of incoming acknowledgement document instances to the appropriate application;
- clarification of the activity diagram for the acknowledgement process;
- addition of the list of constraints on datatypes.

IEC 62325-351:2016 is applicable to European style electricity markets and 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. This new edition of IEC 62325-351 contains new classes and associations required to comply with new business development for European style market, and in particular the implementation of recent European regulations.

IEC 62325-451-5:2015 is based on the European style market profile (IEC 62325-351) and specifies a package for the problem statement and status request business processes and the associated document contextual models, assembly models and XML schema for use within European style markets. The relevant aggregate core components (ACCs) defined in IEC 62325-351 have been contextualised into aggregated business information entities (ABIEs) to satisfy the requirements of this business process.

IEC 62325-301:2014 specifies the common information model for energy market communications. The common information model (CIM) is an abstract model that represents all the major objects in an electric utility enterprise typically involved in utility operations and electricity market management. By providing a standard way of representing power system resources as object classes and attributes, along with their relationships, the CIM facilitates the integration of market management system (MMS) applications developed independently by different vendors, between entire MMS systems developed independently, or between an MMS system and other systems concerned with different aspects of market management, such as capacity allocation, day-ahead management, balancing, settlement, etc.

IEC 62325-451-2:2014 specifies a UML package for the scheduling business process and its associated document contextual models, assembly models and XML schemas for use within the European style electricity markets. This International Standard is based on the European style market contextual model (IEC 62325-351). The relevant aggregate core components (ACCs) defined in IEC 62325-351 have been contextualised into aggregated business information entities (ABIEs) to satisfy the requirements of the European style market scheduling business process. The contents of the corrigendum of August 2016 have been included in this copy.

IEC 62351-451-1:2013 specifies a UML package for the acknowledgment business process and its associated document contextual model, assembly model and XML schema for use within the European style electricity markets, on the basis of the European style market contextual model (IEC 62325-351). The relevant aggregate core components (ACCs) defined in IEC 62325-351 have been contextualised into aggregated business information entities (ABIEs) to satisfy the requirements of the European style market acknowledgment business process. The contextualised ABIEs have been assembled into the acknowledgment document contextual model.

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.

IEC 62325-450:2013 defines how to create a profile from the common information model and the context modelling rules related to this task. This standard is to be applied to the IEC 62325 series. The common information model (CIM) is an abstract model that represents all the major objects in an electric utility enterprise. The CIM IEC 62325-301 caters for the introduction of the objects required for the operation of electricity markets.

Specifies an energy market specific messaging profile based on the ISO 15000 series. The profile is intended to provide the basis for system configuration.

IEC TS 62325-504:2015(E) defines the services needed to support the electronic data interchanges between different actors on the European Energy Market for Electricity (EME) in a fast (near-real-time), and secure way. At the same time, this Technical Specification can also be applied to integration problems outside the scope of IEC 62325-451, such as to the integration of gas market systems or general enterprise integration. Web Services (in WSDL) will be specified for the defined services, applying the Basic Web Service Pattern implementation profile from IEC 61968-100. The services needed to support the electronic data interchange on the European Energy Market for Electricity are:
- List Messages;
- Get Message;
- Put Message.