Will my hon. Friend acknowledge that a lot of money is wasted on insulation? Does he further agree that what we want is a uniform national scheme of rating for energy efficiency for buildings? At the moment, we have the national home energy rating scheme and Starpoint. Will my hon. Friend get in touch with his opposite number at the Department of Energy and ask the Department to initiate a uniform scheme, which would make it a great deal easier for my hon. Friend to honour the undertaking that his Department has given to review building regulations to take account of energy efficiency factors in home construction?