Contact your current energy supplier to check you are on the best tariff and payment method for your circumstances, or if they can offer you any discounts to cut your bills.
Most suppliers offer a discount if you pay by direct debit, on average around £100, compared to paying your bill by cash or cheque
You might be able to get a better deal with a new supplier, particularly if you have never switched before. Visit a comparison website to see if you could get your energy cheaper. You might be able to save £200-400 overall per year.
This is when a group of consumers band together to negotiate a better deal with their gas and electricity suppliers.
Find out more on GOV.UK's guide to collective switching and purchasing
Age UK's save money on your energy bills guide looks at ways to make your home warmer, as well as how to save energy and money and help the environment.
GOV.UK has a helping consumers with energy guide which helps towards lower bills and warmer homes.