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System
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…
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Ancillary services
The Firm Frequency Response (FFR) post tender reports are published following each monthly tender. They indicate which tenders were accepted and rejected and the information submitted for these…
- CSV
Ancillary services
A set of auction results views which present the outcome of daily Enduring Auction Capability (EAC) - Balancing Reserve (BR) mock auction runs. The EAC-BR Mock Auction Results are updated daily in…,…