Energy firms will be legally obliged to offer customers their lowest tariff, reports the BBC.
Prime Minister David Cameron has said legislation would be brought before Parliament, which would be “welcome” news for households facing rising gas and electricity costs.
Otions include making companies automatically place customers on the cheapest rates. Ministers have previously encouraged consumers to shop around and make sure they are on the best available deals.
Measures are expected to be included in the Energy Bill, which will be published in the next few weeks.
