Heysham power station bosses have apologised for frightening neighbours with a loud noise.
The disturbance was caused by a relief valve opening to emit steam at high pressure at about 9.30pm on Thursday November 24.
Operators EDF said Heysham 2 unit 7 was returning to power from a planned maintenance outage when the valve automatically opened as part of the plant’s return to service.
EDF said this caused some very loud noises for a few minutes which could be heard near to the station.
The steam pressure was then controlled manually to stop the relief valve opening. John Munro, acting station director, said: “I would like to apologise for this noise which I’m sure caused some concern to our neighbours. We acted as quickly as we could to stop the noise.
“We are very aware that we are near to residents and so we try keep occurrences like this to a minimum.”