IEC 62325

IEC 62325
Title	IEC 62325
Status	Published
Organization	International Electrotechnical Commission
Domain	Energy market communications
First published	2007
Latest version	Series of parts

IEC 62325

IEC 62325 is a series of international standards for electricity market communications, developed to specify information models, message formats, and profiles that enable interoperable wholesale electricity market transactions. The work aligns with established organizations and initiatives to harmonize market data exchange across regional and national systems, supporting integration among transmission system operators, market operators, and market participants.

Overview

IEC 62325 connects technical frameworks used by International Electrotechnical Commission, European Network of Transmission System Operators for Electricity, North American Electric Reliability Corporation, European Commission, Agency for the Cooperation of Energy Regulators, and ENTSO-E stakeholders to standardize market communication. It builds on modeling and messaging techniques from IEC TC 57, Common Information Model, ISO/IEC 20022, UN/EDIFACT, IEC 61850, and OpenADR to facilitate interchange among entities such as Transmission system operator, Market operator (electricity), Independent System Operator, RTO (electricity), and Distribution network operator. The series addresses concerns relevant to programs like Clean Energy Ministerial, European Green Deal, Energy Community, and Nord Pool integration projects.

Scope and Structure

The scope covers information models, conceptual schemas, and XML-based message profiles for wholesale market operations including scheduling, congestion management, balancing, bidding, settlement, and network data exchange. It references modeling conventions from IEC 61970 and IEC 61968 while aligning with business processes recognized by ENTSO-E Transparency Platform, ACER, and Council of European Energy Regulators. The structure is modular, organized into parts that specify abstract models, message definitions, choreography, and adoption profiles for regional markets such as those overseen by Nord Pool, EPEX SPOT, OMIE, PJM Interconnection, and California ISO.

Standards and Parts

Key parts define the Common Information Model adaptations, market model extensions, and XML/UBL message profiles. Specific parts correspond to profiles for day-ahead, intraday, balancing, settlement, and ancillary services messages and to mappings from other syntaxes including xCBL, UBL, and ISO 20022 constructs. The series draws upon the technical committees and working groups of IEC TC 57, CEN-CENELEC, European Committee for Electrotechnical Standardization, and collaborates with regional bodies such as ENTSO-E and NordREG to produce parts that reflect operational workflows used by National Grid (Great Britain), RTE (France), TenneT, Amprion, Elia (Belgium), Statnett, PSE S.A., and Red Eléctrica de España.

Implementation and Profiles

Implementations often adopt IEC 62325 profiles tailored for specific market arrangements and may be realized through middleware, web services, and message brokers employed by vendors and system integrators including Siemens, ABB Ltd., Schneider Electric, Hitachi Energy, and General Electric. Profiles reference technologies like XML Schema, Web Services Description Language, SOAP, RESTful API, MQTT, and security frameworks promoted by Internet Engineering Task Force, OASIS, and ISO/IEC JTC 1. Pilot projects and production deployments have occurred in markets coordinated by EirGrid, MIBEL, EXAA, CASIOPEA, APX Group, and regional initiatives connected to ENTSO-E Transparency Platform exchanges.

Adoption and Regional Use

Adoption varies by region: extensive uptake in European wholesale markets coordinated by ENTSO-E and endorsed by ACER; selective implementations in North American contexts involving PJM Interconnection and ISO New England; and emerging interest in markets served by Australian Energy Market Operator, New Zealand Electricity Authority, Singapore Power, and Independent Electricity System Operator (IESO). National regulators and transmission system operators such as Ofgem, Bundesnetzagentur, AEMO, and CER (Ireland) have referenced the series in program specifications and interoperability roadmaps, while market coupling projects among exchanges like Nord Pool and EPEX SPOT have used compatible message exchanges.

Relationship to Other Standards

IEC 62325 interoperates with modeling and communication standards including CIM, IEC 61970, IEC 61968, IEC 61850 for substation automation, ISO 20022 for financial messaging, UN/EDIFACT for legacy trade messages, and OASIS Energy Interoperation profiles. It is coordinated with governance and policy frameworks from ACER, ENTSO-E, European Commission Directorate-General for Energy, and international initiatives such as IEA and IRENA that influence market design. Conformance and testing efforts draw on certification practices akin to those promoted by IEC Conformity Assessment Board and validation tools developed in collaboration with academic institutions like Imperial College London and Delft University of Technology.

Category:International Electrotechnical Commission standards