Interoperability is not just a technical requirement – it is a strategic enabler for the energy transition. It allows:
Consumers to access and control their energy data, compare offers, and participate in demand response programmes
Service providers to innovate and offer new digital energy services
System operators to manage the grid more efficiently and integrate renewable energy sources
Decision-makers and regulators to design effective policies, ensure fair market conditions, and support a unified European energy market
To facilitate the development of interoperability requirements, the JWG in data interoperability also provides assistance in the development of interoperability models such as the Harmonised Energy Market Role Model via the operations of its Task Force 3. The JWG, through TF3, also uses this site to present its results.
CIM files
The CIM files consist of documents that defines the contextual and assembly UML models, along with the XML schema, for the Market Documents. While the schema can be applied across various business processes, this document does not detail specific use cases, process flows, or sequence diagrams. Instead, it is intended to be referenced within an implementation guide for each specific business process.
Harmonised Electricity Market Role Model
The Harmonised Electricity Market Role Model (HEMRM) is a document developed and maintained by DSO Entity and ENTSO-E. The Harmonised Role Model describes a model identifying all the roles that can be played for given domains within the electricity market. The roles are of a logical nature, such as a balance responsible party. The roles act within a given domain, such as a metering grid area.
Maintenance Requests
Maintenance requests should be submitted to the Joint Working Group (TF3) to request changes related to implementation guides, roles and CIM objects.