British Gas is offering customers free electricity for eight hours at weekends.
Under the new FreeTime plan, two million customers who have smart meters installed will be able to choose to have their free electricity between 9am to 5pm on Saturday or Sunday.
British Gas claim this will allow their customers to make savings of up to £60 a year.
UK Home at British Gas managing director Sarwjit Sambhi said: “FreeTime is an industry first.
“Our hundreds of thousands of smart meter customers already benefit from accurate bills and a great understanding of their energy use.
“Now they’ll be able to enjoy doing more of what they love at the weekends, knowing their electricity usage is free during the day.”
The scheme, which launches this weekend, will be fixed until March 2018.
British Gas has around 11 million customers, so the majority will not be able to sign up to the FreeTime plan.
But 53million smart meters are expected to be installed in UK households by 2020.
British Gas added that there are no premium charges to use energy at other times for FreeTime customers.
