Power bills can be confusing but that doesn't mean it's hard to find a cheaper offer.
Consumer NZ says that the improved "What's My Number" website has made finding a cheaper energy supplier even easier.
Chief Executive Sue Chetwin says that with the ability to find savings on electricity and gas prices the site is proving more popular than ever.
"Kiwi's love getting a bargain, and the success of whatsmynumber.org.nz is proof of that. A few minutes spent on the site could show you how to save hundreds of dollars for you and your family. It's just common sense" said Mrs Chetwin.