Martin Lewis said certain E.ON customers could save roughly 50 per cent on their energy bills by switching to one particular tariff.
He explained that some of the cheapest deals currently available are being offered by E.ON with both variable and fixed rates available. According to the consumer champion, one particular variable rate could be around 50 per cent cheaper for "typical" energy users.Read more: OVO customers set to save £160 this winter
"So whatever the price cap moves to this will move to but it will be cheaper so it's an absolute no-brainer. You may as well be on that and instead of on the price cap because it's the same thing just a little bit cheaper."