UK power cut: National Grid promises to learn lessons from blackout
National Grid has said it will "learn the lessons" after nearly one million people across England and Wales lost power on Friday.
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.
National Grid said its systems were not to blame and the outage was caused by the loss of two generators.
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.
https://www.bbc.co.uk/news/uk-49302996