British Gas will become the latest to pay its customers to reduce the amount of electricity that they use during peak hours in order to help take pressure off the grid.
The energy supplier said that it hoped 100,000 customers would sign up as it launches the demand flexibility service for the households that it supplies. British Gas becomes the latest - and the largest - to sign up to the scheme - which is run by National Grid.
However, its ambitions for participation are lower than Octopus Energy, which has so far signed up more than 400,000 customers to its version of the scheme. Customers with smart meters will be sent emails asking them if they want to take part, British Gas said.