A survey accompanying the launch of the campaign revealed that 43 per cent of customers do not shop around to compare energy tariffs.
The energy regulator’s study also revealed that 45 per cent of customers did not think they would save much money by comparing tariffs, while 24 per cent said the process was “too much hassle”.
Ofgem has launched a website as part of the campaign, which includes comparison tools, a glossary of terms used on energy bills, links to useful sites, and a downloadable guide.
Dermot Nolan, chief executive at Ofgem, said: “We shop and compare prices for many things in life, yet we often don’t think to do the same when it comes to our energy bills, even when we could be saving around £200.
“Previously, people found it difficult to compare tariffs and the process too time consuming but the recent reforms have changed things for the better.
“With the introduction of ‘Be an energy shopper’ it has never been easier to go energy shopping and get a better deal on your gas and electricity.”
Energy secretary Ed Davey said the campaign will help consumers “get the benefits of more competition”.
He added: “Making the switch is easier than ever before, and the ‘Be an energy shopper’ campaign gives consumers practical advice on how to shop around and get the best deal for their energy use.”