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Energy Bill [Lords]

The exact specifications of the measures that can be included in the green deal are properly left to secondary legislation—and for several reasons, because setting it out will require detail and my officials are in the process of talking to industries throughout the country about getting costs down. The scale of the green deal gives us an opportunity for economies of scale that may well bring a whole new series of measures into the possibilities that it offers. I would very much like to see the maximum possible range of measures—including, indeed, double glazing. As the hon. Gentleman rightly says, a quarter of the UK's energy emissions come from energy used in the home, and billions of pounds spent on domestic heating literally disappear up the chimney. Businesses are wasting money and our outdated building stock is costing us the earth. Not any more: under the green deal—