The outage lasted less than an hour, but travel disruption across the country caused major delays for railways well into the night

110,000

affected in Yorkshire

and north-east

26,000

were affected in

north-west England

Hornsea offshore wind farm

Owned by Danish wind power

giant Orsted, unexpectedly

shut down minutes later

Little Barford

Gas-fired power plant

owned by RWE,

tripped shortly before

5pm on Friday

Cambridge

London

500,000

customers affected in

Wales, the south-west

and the Midlands

300,000

without power

in south-east

England

26,000

were affected

in north-west

England

110,000

people in Yorkshire and

north-east England

were affected

Little Barford

Gas-fired power plant

owned by RWE,

tripped shortly before

5pm on Friday

Hornsea offshore wind farm

Owned by Danish wind power

giant Orsted, unexpectedly

shut down minutes later

Cambridge

500,000

customers in Wales,

the south-west

and the Midlands

were affected

London

300,000

customers in south-east

England were left

without power