Big 6

It is the fifth energy supplier to announce a hike in tariffs after Ofgem’s energy price cap increase

Around four million customers will be affected from April

Around one million customers will see their bills rise by £117 a year on average

Around 1.3m customers will see prices increase by £118 a year on average

Around 1.8m customers will see an increase of £117 on their energy bills

The Big Six energy supplier has also lost 160,000 customers

The firm says worsened market conditions have forced it to make the decision

Octopus Energy, which supplies more than 400,000 households, took first place on the rankings

That includes 108,000 domestic customers and 21,000 business customers

They will be able to charge their cars at a cheaper price between 12.30am and 7.30am