Solar Rooftop Installations

Jim Shannon Excerpts

Wednesday 22nd March 2023 Westminster Hall

[Caroline Lucas (Brighton, Pavilion) (Green)]

I beg to move,

That this House has considered the matter of solar rooftop installations.

It is a pleasure to serve under your chairship, Mr Sharma. I am glad to have secured this debate about solar rooftop installations. Monday’s report from the Intergovernmental Panel on Climate Change left us in no doubt about the urgency of tackling the accelerating climate emergency, and one of the fastest, most effective ways of doing so here in the UK is to step up plans to decarbonise our housing stock. In this short debate, I want to focus on rooftop solar in particular.

There is no doubt that the number of solar rooftop installations has soared in the last decade or so, and I applaud that achievement. I am also happy to applaud this Government’s ambition to increase solar from its current capacity of around 15 GW all the way up to 50 GW by 2030 and then 70 GW by 2035. I am sure we are all united in recognising that achieving and, indeed, surpassing that target is vital.

Solar Energy UK estimates that, of the 15 GW of solar power capacity currently in place, around two thirds is on the ground, and the remainder is on residential and commercial roofs. This morning, I want to make the case for the installation of solar panels on all suitable new-build homes to be made mandatory and to explore how to overcome some of the obstacles to domestic solar.

[Jim Shannon (Strangford) (DUP)]

I commend the hon. Lady for raising this issue. In my constituency, we are very keen to endorse this. Does she agree that solar roof panels can enhance the value of a property and that, for large families who use lots of hot water, the savings generated and the benefit to the environment can make the up-front cost worth while?

[Caroline Lucas]

The hon. Member makes my point beautifully. This is a win-win policy: it is good for householders and good for the environment, and it is good to get people’s bills down too. I thank him for that intervention, with which I entirely agree.

Some 80% of the buildings that we will have in 2050 have already been built, and we must work hard to retrofit them with renewables, but the remaining 20% have still to be built, and maximising the deployment of on-site solar generation in new-build homes could be a real game changer. If we are serious about continuing and accelerating what has been achieved to date and generating a successful rooftop revolution, we should be mandating that all suitable new homes come with solar panels as standard. The Government have an opportunity to do that with the new future homes standard.

I echo the recommendation made by the right hon. Member for Kingswood (Chris Skidmore) in his net zero review that things be put in train to ensure that there are no delays to delivery by 2025. However, I would go further and argue that we do not need another consultation on whether to introduce a requirement for new homes to be built with solar, because we know that the British public are already behind the idea. A YouGov poll just a few months ago found that 80% of people across the UK would support the Government in making regulations to ensure that solar panels are the default on appropriate new-build houses. Only 9% were against that idea.