Your browser is no longer supported

To get the best experience with www.aeso.ca, we suggest using a newer version of Internet Explorer/Edge, or using another supported browser such as Google Chrome.

ETS users may continue to log in using Internet Explorer 9 using the upper right hand link marked ETS Login.

    New Version - Current Supply Demand API

    Effective July 30, 2025 the Current Supply Demand API will have a new version with label changes in the last_updated_datetime field in the response. The original version, Current Supply Demand –  v1 will be unavailable after September 30, 2025.

    Please refer to the Current Supply Demand API detailed instructions located in the APIM Development Portal for further information.

    As well, the Unit Commitment Data API - v1  was previously announced to be deprecated and will no longer be available effective July 30. The second version of this API is the only one now accessible for Unit Commitment Data. 

    New Version - Current Supply Demand API