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Green Energy (Definition and Promotion) Bill

I am sorry to interrupt my hon. Friend in mid-flow. It is likely that a wind turbine or an air source heat pump will be quiet and not vibrate much when it is first installed; the big problem is whether there will be high-quality maintenance. A car that is fairly quiet eventually turns into an old banger, and it is called that because it makes a lot more noise. We must try to ensure that there is sufficiently good maintenance so that a wind turbine does not become an old rattler that used not to be offensive but becomes so as the years go by.