Floating Solar Panels

Debate between John Cooper and Miatta Fahnbulleh

Thursday 26th June 2025 Commons Chamber

[Miatta Fahnbulleh]

I thank the hon. Gentleman for his intervention. There are many schemes and huge opportunities, and the Government are working with industry to think about what the potential is across the country. New proposals are coming forward, and we are trying to engage with them.

Although we see that there is huge potential, it is also important to put that in the context of some of the challenges we face as we try to grow floating solar. We are trying to do our part to work with industry, so we want to ensure that we deal with some of the obstacles and barriers to the schemes that are coming forward—for example, planning or investment certainty. Floating solar projects can apply to the Government’s flagship contracts for difference scheme, and they do.

I know that one of the arguments in favour of floating solar, which the hon. and gallant Gentleman put forward, and which was reiterated by other hon. Members, is that it will reduce the amount of land that we need to use. Arguments have been made about agricultural land and constraining the amount of ground-mounted solar panels on them. I gently say, however, that if we look at the statistics, we see that only 0.1% of land in the UK is covered by ground-mounted solar at the moment—a minuscule amount. Even with the expansion that we are actively trying to encourage, we are still talking about a fraction of UK land that will only ever be used for ground-mounted solar, so it is important to put that in context.

[John Cooper]

The Minister is right to point to the figures now, but this is a growing problem. One of the difficulties with the land that goes under solar panels is that it tends to be south-facing land, which is prime agricultural land. That is where the crops would normally go, so this is a growing problem.

[Miatta Fahnbulleh]

I recognise that point, but even with the expansion, we are still talking about only a fraction of land. Inevitably, regional and local government will make a judgment about the land that we protect. Everyone recognises that we must have prime agricultural land, because we need it, so we are making decisions, and local government will also be making decisions in that context.

[Miatta Fahnbulleh]

I am always in the market for less pain. Let me say a little bit about some of the constraints. Eligible bids have been submitted to our contracts for difference schemes, but unfortunately none has yet been successful. That is because the cost of floating solar is about 10% to 15% higher than those of ground-mounted projects, and the reason for that is the cost of the floating structures on which the panel sits. And we hear from the sector that these can account for nearly half of the cost of the project. Moreover, floating solar requires expensive underwater cables, which costs more than land-based systems. Therefore, although we are very keen to encourage this technology and to encourage the sector to grow, there is more that needs to be done in order to make them cost effective. From a Government perspective, it is critical that every scheme and every project that we support is cost-effective, so that, in the end, taxpayers are not footing the bill for technology that is too expensive.

[John Cooper]

I thank the Minister for allowing me to intervene again. She is making a powerful argument for looking again at the CfD scheme, which is notoriously complicated and very difficult. I think we need a two-pronged approach—we need some changes to CfD, but obviously technology associated with solar is moving on all the time, so perhaps the two could come together.

[Miatta Fahnbulleh]

We will always keep this area under review. We recognise the potential of the technology, and we will continue to work with industry to bring down costs. As the hon. Member says, there are reservoirs and waterways where there are potential problems, but there is also the potential for it to be painless. If we can help to unlock the technology, there will absolutely be appetite from the Government for this. We are trying to invest in research and development in this area, and we are putting in Government support and investment to unlock that.

Finally, the hon. and gallant Gentleman mentioned the solar taskforce. We are working at pace to deliver the taskforce’s recommendations. The taskforce has effectively brought together industry and Government to discuss the actions needed to scale up solar deployment, in line with our 2030 clean power mission. It has identified the need for a road map to address the specific barriers to floating solar and other innovative technologies, and a sub-group has been convened to focus on this specific topic.