Floating Solar Panels

Mark Francois Excerpts

Thursday 26th June 2025 Commons Chamber

[Lincoln Jopp]

I completely agree with my hon. Friend. I hope we are going to give hope across the House and therefore across the country that this alternative solution to putting solar panels on grade A agricultural land is, to a certain extent, an answer to a maiden’s prayers. Not only does floating solar remove the opportunity costs of putting it on agricultural land, but one of its beauties is that it is twice as efficient as a land-based system. Land-based systems warm up because they are on the land, and as they warm up they become less efficient, whereas floating solar panels, because of the evaporative effect on the underside, remain automatically cool and 100% efficient throughout a sunny day.

[Mr Mark Francois (Rayleigh and Wickford) (Con)]

As the hon. Member for Strangford (Jim Shannon) is not here, unusually, perhaps I can fill in for him. We have already heard from one of my Essex colleagues, my hon. Friend the Member for Epping Forest (Dr Hudson), about the controversy in Essex over a number of solar farm developments on land. Before the 2010 boundary changes, I had a very large reservoir in my constituency at West Hanningfield, which would be ideal for the technology my hon. and gallant Friend is suggesting. Does he not believe that many hundreds of other reservoirs across the country would be so suited?

[Lincoln Jopp]

I do, indeed. I was not 100% sure which Minister would respond to this debate, so I have had only the briefest of moments to look at the lake in Burgess park in the Minister’s Peckham constituency to see whether that may be suitable for floating solar.

We have talked about the opportunity costs and about doubling efficiency. I am sure hon. Members will have worked this out, but the 2,000 acres of reservoir in my Spelthorne constituency are raised, which means no one can see the top of them unless they are flying off to Torremolinos or landing from Dubai. Therefore, there would be none of the visual vandalism that people object to so much, and the carpeting of our beautiful country in solar panels would go away too.

--- Later in debate ---

[Lincoln Jopp]

My hon. Friend makes a fantastic point. The Queen Mary reservoir in my constituency has a plug-in point to the national grid at one end of it. The ability to minimise the disruption that is caused by placing solar farms away from where the power is needed is certainly a consideration that plays into this.

Hon. Members will think, “Well, that must be his list complete. Those must be all the benefits of floating solar, because there can’t be any more.” But I say to the House that one of the most astonishing things about floating solar is that it improves the water quality underneath, as it is denuded of light and heat. There are things that grow in the water which the water companies subsequently have to filter out to make it tap-ready for us and our constituents. The water companies have to use fewer filtrants where the surface has been covered by floating solar. We have covered the evaporative effect, so I think I have made the case for floating solar.

[Mr Francois]

My hon. Friend makes a strong point about being able to use floating solar to obviate the need for development on green-belt land in other parts of the country. Is he aware that a development has been proposed by Bloor Homes at Dollymans Farm in my constituency for up to 1,300 houses, which is a major issue in the ongoing by-election in Wickford Park? Does he agree that to prevent the housing at Dollymans Farm, people should vote for the excellent Conservative candidate, Lewis Hooper, before the polls close tonight?

[Lincoln Jopp]

We have gone from Cooper to Hooper! I am delighted to follow my right hon. and gallant Friend’s endorsement, and wish everyone there the opportunity to get to the polls today to exercise their democratic right.