Energy and Climate Change and Environment, Food and Rural Affairs

I thank my right hon. Friend for giving way for a second time. Social tariffs drive down electricity bills, but so does energy efficiency. Will he comment on the plans that have been floated to make available to all 25 million households in Britain energy efficiency loans of £6,500? Is he aware that the cost would be about £160 billion, a sum not unadjacent to 10 per cent. of GDP? Is that a cost-effective way of using taxpayers' money?