NATIONAL Grid has said it will “learn the lessons” after nearly one million people across England and Wales lost power on Friday reports the BBC.
But director of operations Duncan Burt told the BBC that its systems “worked well” after the “incredibly rare event” of two power stations disconnecting.
He said he did not believe that a cyber-attack or unpredictable wind power generation were to blame.
Regulator Ofgem has demanded an “urgent detailed report” into what went wrong.
It said it could take enforcement action, including a fine, after train passengers were stranded, traffic lights failed to work and thousands of homes were plunged into darkness during the blackout.
Some train services continued to be disrupted on Saturday morning.
The power outage happened at about 17:00 BST on Friday, National Grid said, with blackouts across the Midlands, the South East, South West, North West and north east of England, and Wales.
Industry experts said that a gas-fired power station at Little Barford, Bedfordshire, failed at 16.58, followed two minutes later by the Hornsea offshore wind farm disconnecting from the grid.
But throughout Friday’s evening rush hour there was huge disruption on the railways, as police officers were called in to help travellers and delayed passengers were stranded for hours.
Northern Powergrid said the problems had affected Newcastle airport and city’s metro system.
People waiting inside Kings Cross station, London, as all services in and out of the station were suspended, after a large power cutImage copyrightPA MEDIA
All services in and out of King’s Cross station were suspended during Friday rush hour
King’s Cross was one of the worst-hit stations, with all trains suspended for several hours.
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