v1

latestOpenAPI 3.0.42026-07-233182951.4 MB

System

System frequency (FREQ)

This endpoint allows for retrieving a collection of recent system frequency data from National Grid ESO. Results can be filtered by a range of DateTime parameters. This endpoint is useful for ad-hoc querying frequency data.

get/system/frequency

Query parameters

fromstring date-time

tostring date-time

format'json' | 'xml' | 'csv'

Response data format. Use json/xml to include metadata.

Response

Example response

{
  "metadata": {
    "datasets": [
      "DATASET"
    ]
  }
}