Max Wilkinson

I take the hon. Member’s point on board entirely, and agree with him. This Bill is limited to residential new builds; I was very conscious that in the public sector, the cost of initial installation would be borne by the taxpayer. He was right to reference schools. In my constituency, Bournside school is installing a huge ground source heat pump. That is a national, leading case study. He is right that it is important that young people understand what is going on. With regard to industry standards, we need to make sure that there is an industry-wide regulator and a certification scheme. The industry needs proper regulation to give consumers confidence in the product. Supply chains were mentioned. To give supply chains, the construction industry and developers time to adjust, the Bill proposes that the regulations apply from 1 October 2026. Ministers may have comments on whether that is a realistic timescale—they might want to make it longer. I am sure that there will be a discussion. Reasonable exemptions need to apply, including for very tall buildings; for buildings on which it would not be economical to install solar panels, due to roof size or other factors; and for buildings that had other forms of renewable energy generation installed that were more appropriate for that setting. Where buildings cannot physically accommodate solar panels that cover at least 40% of the building’s ground-floor area, the Bill requires that solar panels are installed to the maximum extent possible. It is important to take part in some myth busting. To dispel one big myth about solar panels, they do not always need a clear, sunny day to work; they will continue to work in overcast, cloudy conditions. I think we can all agree that that is good news for this country. To dispel another myth, solar panels can be installed to good effect on north-facing roofs, although efficiency will be a little lower. The overwhelming strength of the case for the measure means that the sunshine Bill has gathered support from industry. Over Christmas, several businesses and industry organisations signed an open letter to the Government in which they declared their support for the Bill. I am grateful for the support of the MCS Foundation, Solar Energy UK, Eco2Solar, E.ON Next and Ecotricity. I am particularly grateful to the MCS Foundation for its assistance and advice on technical matters in these last few months.