New Homes (Solar Generation) Bill

Victoria Collins Excerpts

2nd reading
Friday 17th January 2025 Commons Chamber

[Adam Thompson (Erewash) (Lab)]

I thank the hon. Member for Cheltenham (Max Wilkinson) for introducing the Bill. I think it is laudable, and its heart is very much in the right place. We should think of the climate crisis in all matters of policy and in how we might contribute to the Government’s goal of making Britain a clean energy superpower.

The Government, guided by the excellent work of the Secretary of State for Energy Security and Net Zero, are already making great strides in combating the climate crisis, putting green energy at the heart of the country’s future and supporting green industrial growth wherever we can. The Government have established Great British Energy, which means that we will need new green infrastructure sooner rather than later. When it comes specifically to solar energy, I was very pleased that, within just days of taking office, the Government approved three major, long-stalled, large solar farms in Lincolnshire and East Anglia, capable of generating 1.5 GW, or enough to power 500,000 homes. That was a clear statement of intent, and one that we can all be very proud of.

At the same time, the Secretary of State pledged a rooftop revolution, making it easier for newly built homes to come with solar panels from the off and to install solar panels on existing homes. A third of our solar generation capacity already comes from rooftop solar, it is an important part of the energy generation mix and I know that the Government fully believe in rooftop solar, as I do.

[Victoria Collins (Harpenden and Berkhamsted) (LD)]

The hon. Member talks a lot about the measures that are being put forward in the move towards net zero, but we need to go further. CPRE Hertfordshire says that 60% of our targets could be achieved through rooftop solar panels alone, and supporting the Bill will help to make sure that that revolution helps towards net zero for our planet and our people.

[Adam Thompson]

I thank the hon. Member for her intervention, and I will cover some of those points shortly. I broadly agree with the sentiment of what she said.

The Bill’s aims, in promoting the installation of solar panels on all new homes, feed into the Government’s overall intent, and I am pleased about that. I note, however, that it is undeniable that solar farms, especially the larger ones, are much more efficient than rooftop solar for a whole spectrum of reasons. Rooftop solar panels are constrained by the size, orientation and structural limitations of individual buildings, while solar farms are optimised for maximum energy generation. The difference in output can be as high as 30%. Economies of scale mean that the cost to install, maintain and centralise the supportive infrastructure notably reduces the ratio of cost per unit of energy generated by solar farms. That is not to say that I do not support rooftop solar, because I very much do, but solar farms are a highly scalable, cost-effective means through which to achieve the green energy transition.