Households will be paid to switch off their electricity for a second day in a row under a new scheme to avoid blackouts.
The National Grid ESO is running its Demand Flexibility Service again on Tuesday which will allow customers to get discounts from their bills for using less energy.
Households that have signed onto the scheme will receive money-back on bills should they reduce consumption between 4.30pm and 6pm on Tuesday, January 24.
The Demand Flexibility Service is a scheme that is available to consumers through their energy suppliers which aims to alleviate pressure on energy supplies.
"We have taken this decision as we currently see a similar operational picture to the one available on Sunday," National Grid ESO said in a statement on Monday afternoon.
"The use of these additional services is not an indication that electricity supplies are at risk, but that we require greater options to manage the network as normal."
The scheme is only available to those who have smart meters in their homes and are with a supplier that is on National Grid's approved list. Today customers signed onto the scheme can expect to receive £3.37 worth of energy credit per unit of electricity saved.
This is the second opportunity for households to make money in 24 hours as the scheme was run yesterday, Monday January 23, from 5pm to 6pm.
There have been a number of test runs in the past, but yesterday was the first time that the Demand Flexibility Service was used to protect supplies.
It comes amid a bitter cold January which could see households using more energy than usual. Just last week Scotland logged its coldest day of the year so far as the Highlands plunged to a bone chilling -10.4C.
With 26 suppliers signed onto the scheme (16 domestic suppliers), National Grid ESO have said that 1 million households and businesses are participating.
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