v1
latestOpenAPI 3.0.0BSD License2026-07-24228233924.5 KBElexon
Half-hourly generation outturn by fuel type
This endpoint provides the half-hourly generation outturn (Generation By Fuel type) to give our users an indication of the generation outturn for Great Britain. The data is aggregated by Fuel Type category and updated at 30-minute intervals with average MW values over 30 minutes for each category.
get/gb/elexon/system/fuelhh
Query parameters
publish_date_fromstring date-time required
Start date time for the request, referring to when the forecast was published. Ex: yyyy-mm-ddThh:mm:ss
publish_date_tostring date-time required
End date time for the request, referring to when the forecast was published. Ex: yyyy-mm-ddThh:mm:ss
limitinteger
Number of results to return per page.
offsetinteger
The initial index from which to return the results.
timezone'UTC' | 'Europe/Berlin' | 'Europe/London' | 'America/New_York' | 'America/Chicago' | 'America/Los_Angeles'
The timezone for the query and returned data. If not specified, the default timezone is shown in the information table.
Response
Success