For any queries or feedback please contact box.OpenData.ESO@nationalgrideso.com

Datasets

2 datasets found

  • System Frequency

    This page holds the historic system frequency data for Great Britain at a 1 second resolution. It is the role of the National Grid ESO to keep the system frequency at 50 Hz, with a statutory limit of...

  • System Excursions

    The National Grid Electricity System Operator (ESO) publishes an annual report on the performance of the National Electricity Transmission System (NETS) in Great Britain and fulfils Transmission...