My Lords, I thank noble Lords for their contributions. My noble friend the Duke of Montrose asked whether there is a ready supply of combined heat and power boilers. There is indeed. On average, 120 megawatts of combined heat and power plant has been installed per annum over the past five years, which I hope indicates that there is a supply chain.
The noble Lord, Lord Grantchester referred to the time it has taken to transpose the directive. There were indeed delays in finalising the text of the draft regulations, primarily due to the Government’s desire to integrate comments received by stakeholders during the public consultation. We took most of the comments received on board and reflected them in the draft regulations. In particular, we revised some of the thresholds to ensure that they fully apply the allowed derogations in the directive and avoid disproportionate burdens on British businesses, while still achieving the required level of support for energy efficiency. As he will understand, that required detailed technical discussions.