Planned blackouts seen in the 1970s could return to the UK this winter if power plants can not get enough gas to operate, warns the body that oversees Britain's electricity grid.
The National Grid Electricity System Operator (ESO) said three-hour power cuts could be introduced to make sure the entire network does not collapse.
Planned blackouts - including the 'three-day week' - hit the UK during the 1970s in response to the miners' strikes and the oil crisis. There have also been major unplanned outages in storms, including in 1987 when over 1.5 million people were left in the dark.