All-time record
Most curtailed half-hour
The most wind energy ever curtailed inside one half-hour settlement period. Double it and you have the average megawatts held off across those thirty minutes - the figure that compares with the live curtailment headline on the Pulse tab.
The record
3.8 GWh
Set 2025-12-19 06:00:00 UTC
Recomputed from NESO's historic half-hourly data whenever new history is ingested. Eras a fuel wasn't tracked are excluded - never counted as zero.