Energy and Climate Change and Environment, Food and Rural Affairs

The Secretary of State is being very generous in giving way. I am sure that he will agree that if we are to reduce our carbon footprint, it is important to lower domestic fuel consumption, including fuel bills, wherever possible. Some months ago, I raised with him the idea that we should oblige energy companies to print on all domestic bills whether customers are on the company's cheapest tariff, and if they are not, the company should put how much the customer would save by changing or switching. He kindly said that it was an ingenious idea, yet recently I received a letter from his Department saying that the Government could no longer support it. What has changed his mind?