Power Systems Data Working Group (WG2)

This is the homepage of the Power Systems Data Working Group (WG2), part of the Carbon Data Specification Consortium (CDSC), an LF Energy project.

If you would like to see an API demonstration of this specification, you can go here (this is currently being served on a free plan, so it may take up to a minute for it to load when you first click this link).


An open specification for raw electric power system data to facilitate a systematic and more accurate approach to report grid emissions.

This working group focuses on creating a unified specification for data retrieved from power system operators.

Power system data might include, but is not limited to:

  • Generation mix
  • Power imports and exports
  • Power market data
  • Delivery capacities and/or constraints
  • Power generation emissions

This common standard shall enable grid decarbonisation pathways and decision-making. By aligning the definition of the data shared by power system operators, this specification will make it easier for third parties to consistently compute (using their own carbon models) and report grid emissions worldwide.

Use Cases


These are the official specifications written by this working group.

  • CDSC-WG2-03 - API Interface [Specification] (v0.0.1)
  • CDSC-WG2-* - Additional specifications will be added in the future

CDSC-WG-03 is the current spec that encapsulates the topology, decisions around fuel types and technologies, and the proposed endpoints for a specification around providing power systems energy data at different spatial granularities.

If you would like to contribute to these specifications, please see our docs on Contributing.


Want to participate? Great! We’re an open organization, so we welcome any company or individual who wants to provide input.

Things anyone can do (no membership required):

Things you can do if you become an LFESS member (it’s free!):

NOTE: It’s okay if you’re not yet an LFESS member and comment on something (spec, issue, pull request, mailing list, slack discussion, etc.), and we want your input to be incorporated into our specifications. We’ll just ask you to join LFESS before we can merge your suggestions into the specifications.


See our LICENSE.md.

Our specifications operate under the Joint Development Foundation (JDF) project model.

Our code and documentation is released under the Apache 2.0 license.

Code of Conduct

Contact for Code of Conduct issues or inquires: operations@lfess.org