Solar Farms

John Hayes Excerpts

Thursday 15th May 2025 Commons Chamber

[Dr Caroline Johnson (Sleaford and North Hykeham) (Con) [R]]

I beg to move,

That this House has considered solar farms.

I must first inform the House that my husband is a farmer and agricultural contractor.

I am very grateful to the Backbench Business Committee for allowing me time for a debate on large-scale solar farms. There are some things that Members across the House can agree on: we all want cheap and reliable energy, we all want food security and affordable food prices, and we want to live sustainably and to protect our natural surroundings. Whether or not we agree on how we should achieve those goals, I think we can at least agree that these are desirable aims, so why is the issue seemingly so controversial? It is controversial because it is doubtful that large-scale solar farms on prime agricultural land can achieve any of those aims.

First, how good are solar panels? In principle, solar energy is green, but the reality is murkier. The journey of a solar panel, from raw materials to installation, is far from carbon neutral. The production process demands substantial energy, often sourced from fossil fuels. It requires the mining of silver and zinc. It requires energy to produce the intense heat needed to melt quartz for polysilicon, and the transportation of components and finished panels across vast distances by diesel-powered trucks, trains and ships. What happens when the panels reach the end of their lifespan? Recycling should be the obvious answer, yet they are notoriously difficult to recycle. A constituent of mine who dedicated their master’s research to this issue found that most solar panels, once they finish their lifecycle, cannot currently be effectively recycled.

Solar energy is not morally clean either. Most solar panels sold in the UK—an astonishing 97%—contain materials sourced from places where there are concerns about forced labour. Baroness May of Maidenhead, the former Prime Minister, did so much to champion the cause of combating modern slavery during her tenure, and we must not be complicit in human rights abuses in business supply chains. The Government’s decision to U-turn yesterday on the Lords message on the Great British Energy Bill is welcome, but it is shameful that it came only after so much pressure.

Even if the challenges with production, transportation and recycling could be resolved, there are concerns about whether solar energy is the right option for the UK’s energy production at all. Solar energy is most effective in sunny places, where there is high demand for energy when it is sunny. But in the UK the highest energy demand occurs when it is cold and dark. That means energy must be stored, leading to the need for large battery storage systems, which bring their own problems—we would require another debate just to discuss those. In fact, the UK is ranked as second to last on a list of 240 countries in terms of its suitability for photovoltaic electricity production.

[Sir John Hayes (South Holland and The Deepings) (Con)]

There is a further point about suitability. My hon. Friend, as a Lincolnshire MP, will know that our county produces a hugely disproportionate amount of the nation’s food. Compromising food production puts food security at risk, because the solar farms, which are industrial developments, use up land that could otherwise feed the nation.

[Dr Johnson]

My right hon. Friend is of course right, as usual, and I will address that point in more detail later in my speech.

Even if we could resolve all those production, recycling and transportation issues, and so accept that solar is viable for the UK, ground-mounted solar projects are not the right approach. Panels installed so far are relatively inefficient. Despite a currently installed capacity of 17.8 GW, the total output last year was less than 10% of that.

Our current approach is also centred around technology that is outdated. If Members can cast their minds back to 1984, when the first Apple Mac computers were put on the market, and then look today at the present advances in technology, they will see that technology has evolved at a rapid pace. Solar panels planned for fields today are already being superseded by cleaner, more efficient technology that does not need farmland. Researchers in Japan are developing next-generation panels made from iodine. They are flexible and 20 times thinner than existing panels. They would make it realistic to build solar installations on urban infrastructure such as stadiums, airports and office buildings.

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[Alex Mayer (Dunstable and Leighton Buzzard) (Lab)]

Thank you for calling me so early on, Madam Deputy Speaker, at the sunrise of the debate.

I believe there is not only a climate and biodiversity emergency, but real insecurity in our energy market. That is why I absolutely back the Government’s plan to triple our solar capacity and reach the clean power target by 2030. We need to look at the whole gamut of renewable energy out there, including tidal—although perhaps not so much in Bedfordshire—wind and solar power. I am very lucky that my constituency is home to the joint tallest wind turbine in the country, an honour I share with my right hon. Friend the Member for Bristol North West (Darren Jones). When I visited, I suggested that we put a Union flag on top of the one in my constituency so that it would be the tallest, but there was no agreement to that—never mind.

My constituency is also home to a solar farm in Eggington, as the Minister knows, because he visited it with me. It produces enough power for 2,000 homes every year. What is interesting is that as well as producing that clean, green power, it retains an agricultural use; as the Minister may remember, there are also sheep grazing between the solar panels, nibbling at the grass.

[Sir John Hayes]

Just to be clear, this is not about what, but where. Of course it is important that we have a diverse energy mix, but the hon. Lady must know that if we put solar panels on the best-quality agricultural land, we will have to import more food and extend supply chains, and so damage the environment.

[Alex Mayer]

I think we need a mix, but we cannot rule out using solar panels on large chunks of land.

When the Minister came along to visit our solar farm in Eggington, he not only met the sheep, but saw that some of the land around the panels has been transformed into wildflower meadows. In my constituency, AW Group —the people with the turbine—is branching out into solar. In the next couple of months, it will build another solar array and again put in wildflower meadows. Those meadows are so important for biodiversity in our country, as our pollinators and other insects face real problems. I learned on my visit that solar farms can also be useful to some of our ground-nesting birds, which find shelter and sanctuary underneath the solar panels.

In essence, I just wanted to say that I really welcome what the Government are doing. I welcome what they did yesterday; the new rules make it easier for some of the smaller amounts of power generated from solar panels to be linked to our grid. I urge the Minister to go full steam ahead on this, and to make sure that our solar industry has a really bright future in this time of biodiversity and climate emergency.

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[Steve Barclay]

Indeed, the Government are creating an incentive to do the exact opposite of own manifesto pledge, which is why I started with that point.

Let me come on to the second place where we can see Labour’s approach—in the Cabinet. Of course, we cannot witness the Cabinet in action at first hand, but it is very clear—certainly to someone who has had the good fortune to sit in Cabinet—how marginalised the Department for Environment, Food and Rural Affairs has become. We see the Prime Minister announce things such as the compulsory purchase of farmland in order to support infrastructure schemes; we see the former Labour leader, the Secretary of State for Energy Security and Net Zero, make a whole raft of decisions in his first few weeks of office on massive solar farms, overriding DEFRA; we see the Deputy Prime Minister riding roughshod over the DEFRA Secretary of State on housing schemes; and we see the Chancellor phoning officials at DEFRA the night before to say that the sustainable farming incentive had been reduced so quickly that the Government have now had to concede in a legal case that their approach was wrong and allow a further 3,000 farm applications to proceed—and that is without any clear commitments in this area.

When I warned at the election about Labour’s farm tax, the now DEFRA Secretary of State said that it was complete nonsense. Well, we have seen the Government introduce that tax and watched while the Treasury rode roughshod over the Department. We have a Department that is completely sidelined in the Government and failing to speak up not just for food security and farming, but for the very commitments that were made in the Labour manifesto.

We see a theme running across a whole range of policy announcements that shows the instinct, the values and the priorities of this Government, who always believe that top-down knows best. They do not believe in localism. The implication for solar farms can be seen in how the delivery of the policy is happening on the ground. We are seeing clusters in the east of England, as my right hon. Friend the Member for South Holland and The Deepings (Sir John Hayes) would point out, in areas of the best food production. We are seeing a gaming of the system, where the developers bring in consultants to grade the land in ways that sit at odds with historic knowledge of the value of that land.

[Sir John Hayes]

I am delighted to endorse everything that my right hon. Friend and neighbour has said about national economic resilience. The point about grading land is critical. To be fair to the Government, they have said that land at grades 1, 2 and 3a at least should be protected, but the problem is that the solar developers deliberately attempt to distort those distinctions by regrading land using organisations that are part of their own corporations.

[Steve Barclay]

My right hon. Friend is completely right; the issue is hiding in plain sight. When I was in the Government and sought to strengthen the protections for farmland, changes to the guidance were made, including bringing forward independent certification for agricultural land classification in soil surveys. We know at a constituency level that malpractice is going on and is not being challenged. The point is that that is not by accident. This is not an error of delivery. This is by design, and we can see that design in the raft of decisions made by the Energy Secretary in his very first weeks in office. Indeed, close to our constituencies, just near to Cambridge, there was an important announcement on a mega farm, which was made by the new Secretary of State against official advice. This matters because it is related to wider trust in our politics. A clear commitment was given to rural communities by Labour in its manifesto that is being broken.

I will close, conscious that many colleagues want to participate in this debate, with this comment for Labour Back Benchers. It may be that Nos. 10 and 11 have simply decided that, with their majority, they can afford to sacrifice a number of their rural MPs who had not been expected to win the election, and it may by that they decided that those MPs were not essential, but it is baffling that there is so much silence. These MPs are voting for measures that are having such a harmful effect in rural constituencies, and those measures are so short term that they are putting our food security, which does indeed matter to our national security, at risk.

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[Dr Johnson]

rose—

[Sir John Hayes]

rose—

[Tony Vaughan]

I will not take any further interventions at this stage. [Interruption.] Members will hear what I come on to say.

We have a decommissioned nuclear power station in Folkestone and Hythe, and I strongly believe that it should be brought back for energy generation. The site has the right location, with proximity to the grid, and a local skills base for these technologies, such as advanced modular reactors. I am grateful to Lord Hunt, the Minister responsible for nuclear energy, for his continued engagement on this issue, but I urge the Government to move faster to create the conditions for advanced modular reactors and other new technologies to become a reality.

On solar, Folkestone and Hythe must play our part in delivering the Government’s clean energy mission, but it should not come at the expense of the fundamental character and beauty of the rural community. People visit Romney Marsh for its tranquillity and beautiful landscapes. We must take our fair share of solar developments to support the Government’s clean energy mission, but covering a large area of Romney Marsh with multiple developments will affect the character of the area. One of the projects would occupy 2.3 square miles of countryside, and there are four more in the pipeline. It is entirely consistent to support the Government’s mission and accept our fair share while saying that there need to be principled limitations and a reasonable amount of development. That is the right position to take.

Solar farms need to be evenly spread across the country. The clean energy mission is a national endeavour, and we cannot have one community in Romney Marsh facing it on their own. [Interruption.] If any hon. Members want to intervene and make legitimate points, they are free to do so.

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[Sir Edward Leigh (Gainsborough) (Con)]

I agree with the hon. and learned Member for Folkestone and Hythe (Tony Vaughan); let us all play our fair share—and I will support him on Romney Marsh if he supports me on Gainsborough. That is a fair deal.

The distribution of solar farms across the country is, as has been made clear, highly uneven. Of the 650 parliamentary constituencies, 310 have more than 0.1% of land taken up by solar development, while 151 have more than 0.6% and 96 have more than 1%. The five most affected constituencies are Newark, with 8.85% of land taken up by solar farms, Sleaford and North Hykeham with 6.95%, Newport East with 5.12%, my own beloved Gainsborough with 5.08%, and Selby with 4.22%. I say to the hon. and learned Member for Folkestone and Hythe that this is a debate not about solar farms or green energy but the sheer concentration of solar farms in some parts of England.

[Sir John Hayes]

That concentration is ironically on some of the best land for growing. That is the problem. There seems to be a correlation between the most productive farmland and the concentration of solar applications.

[Sir Edward Leigh]

My hon. Friend is absolutely right.