v1
latestOpenAPI 3.0.0BSD License2026-07-24228233924.5 KBElexon
Demand and Surplus Forecast Data (2-156 weeks ahead) Generating Plant Demand Margin
The Demand and Surplus forecast surplus data is received hourly from NGESO. It shows the daily peak half hour MW value of Generating Plant Demand Margin for each week for the 2 to 156 weeks ahead.
get/gb/elexon/forecasts/ocnmf3y2
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