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Energy Efficiency

Of course the Government will look at all such evidence, where it is helpful, and learn what we can. I am puzzled—I hope it is not just "not invented here" syndrome—that the right hon. Lady does not understand what I tried to explain at length. Our green deal will require primary legislation because there is a fundamental difference between her scheme, which ultimately relied on credit scoring, personal debt, a green mortgage or a charge on the property. None of those things applies to the new green deal. It will not be personal debt. It will not be a charge, a loan or a mortgage. It will be secured on the property, not on the people who live in the property. It may sound technical, but that is a fundamental difference. It requires primary legislation and it is not the same as the small test pilots which, useful as they may be, the right hon. Lady was trailing.