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DatasetsFrequency - real-time data

Frequency of the power system based on the real-time measurements in Fingrid's operation control system. The data is updated every 3 minutes.

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You can perform searches on the data and save the results for further processing in the following formats: JSON, CSV, XLSX, XML

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API

You can download datasets through our open RESTful API. The API enables service development based on the data.

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API technical documentation

Dataset

Unit

Hz

Data period

3 min

Dataset ID

177

Status

Active

Valid from

1.1.2014

Additional information

Organization

Fingrid

License

Creative Commons Attribution

Keywords

Frequency, Real-time data

Content groups

Power system state

Example data

Format
[
  {
    "datasetId": 177,
    "startTime": "2026-11-14T16:54:56.000Z",
    "endTime": "2026-11-14T16:55:56.000Z",
    "value": 50.004
  },
  {
    "datasetId": 177,
    "startTime": "2026-11-14T16:53:56.000Z",
    "endTime": "2026-11-14T16:54:56.000Z",
    "value": 50.0019
  },
  {
    "datasetId": 177,
    "startTime": "2026-11-14T16:52:56.000Z",
    "endTime": "2026-11-14T16:53:56.000Z",
    "value": 50.006
  },
  {
    "datasetId": 177,
    "startTime": "2026-11-14T16:51:56.000Z",
    "endTime": "2026-11-14T16:52:56.000Z",
    "value": 50.016
  },
  {
    "datasetId": 177,
    "startTime": "2026-11-14T16:50:56.000Z",
    "endTime": "2026-11-14T16:51:56.000Z",
    "value": 49.9987
  }
]