Before the Minister replies to that, perhaps I may follow up the point made by my noble friend Lady Young. What consumer research
—that is, purchaser research—have the Government done, as opposed to listening to selective representatives or voices of the building industry? I think that very few consumers, if asked, “Would you prefer to pay £3,000 which you’ll pay off in two-and-a-half years and thereafter make £1,250 profit a year on your energy bill?”, would regard that as a poor deal.