What is a blackout and when did the UK last have one?

What is a blackout and when did the UK last have one?

Winter could get very dark in the UK (Picture: Getty Images)
Millions of Brits have been warned to brace for blackouts this winter if power plants can’t get enough gas to keep running, the National Grid has said.
Households could be paid to turn down their heating and not use their washing machines at peak times to save the country as much energy as possible.
It comes after the National Grid…

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