Good Energy is set to increase customer numbers after it struck a deal with the Clean Energy Switch, a collective switching process organised by 38 Degrees and Big Deal.
Up to 100,000 people have signed up for information about the switch, although not all will decide to go ahead. The company currently has 55,000 customers.
According to The Independent, which promoted the switch, the new customers will pay £947 a year on average, compared with £1,112 for other Good Energy customers and £1,179 at the big six energy companies.