Commission for Regulation of Utilities (CRU)

Requesting: 1) Records from specified third parties notifying the CRU of the electricity grid dropping below the normal operating range (below 49.8Hz) at 8pm on Tuesday 4th May for 14 minutes. 2) Records in relation to a notification that the electricity grid dropping below the normal operating range (49.8Hz) at 8pm on Tuesday 4th May for 14 minutes.