v1
latestOpenAPI 3.0.42026-07-233182951.4 MBDay-ahead demand forecast (NDF, TSDF)
This endpoint provides the day and day ahead demand forecast and are categorized as National Demand Forecast (NDF) and Transmission System Demand Forecast (TSDF); the forecast values are derived by NGESO and is based on historically metered generation output for Great Britain. The data is updated every 30 minutes and within 15 minutes of the end of the effective Settlement Period. NDF takes into account transmission losses but but does not include station transformer load, pumped storage demand or Interconnector demand; the data is reported only at national level; and TSDF which takes into account transmission losses , station transformer load, pumped storage demand and interconnector demand. The data is reported both at national and boundary (system zones) level. Boundary data only available for Transmission System Demand Forecast (TSDF).
Query parameters
Omitting this will return only national data. Specifying boundary=zonal will return only zonal data.
Response data format. Use json/xml to include metadata.
Response
Data retrieved
Example response
{
"metadata": {
"datasets": [
"DATASET"
]
}
}