Solar Farms

Caroline Johnson 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.

[Rachel Gilmour (Tiverton and Minehead) (LD)]

Does the hon. Lady agree that solar energy generation is a key stepping stone on our pathway towards a green economy and to reaching net zero, for those of us in this House who still believe in it? However, where possible, we should not take up agricultural land. I am very pleased to say that my office is supporting Farmer Dibble in my constituency, who is seeking to prevent solar panels being put over some 200 acres of his farm. We should instead shine a little sunlight on the idea of putting solar panels on the roofs of all new buildings, as suggested by my hon. Friend the Member for Cheltenham (Max Wilkinson).

[Dr Johnson]

I agree wholeheartedly that we should not use our best agricultural farmland for solar panels. The previous Government took steps to establish a £50 million fund to incentivise rooftop installations on farm buildings. That is the right measure to maximise the efficient use of land. This Government’s approach, by contrast, is to concentrate ground-mounted solar on prime agricultural land. That is folly in the highest degree. There are 600,000 acres of unused south-facing industrial rooftops across this country. We should use those before we even consider industrialising our countryside; industrialising it comes with consequences. I will come back to farming in a moment, but first we should consider the impact on the wider community. Access to green space and exercise are good for wellbeing. Imagine for a moment walking your dog not alongside a hedgerow, but between two 3.5 metre-high metal fences with CCTV cameras on them. How many of us would prefer to run past miles of 4 metre-high solar panels than rolling British countryside?

I listen carefully to my constituents and have conducted surveys in the affected areas. I have received over 2,000 handwritten responses to my solar farm survey, many of which contain pages of heartfelt comments from people who are deeply worried about the disproportionate number of applications for massive solar projects in our area.

[Sir Gavin Williamson (Stone, Great Wyrley and Penkridge) (Con)]

The beautiful village of Stowe-by-Chartley in my constituency will be almost ringed by solar panels. Does my hon. Friend think that the Planning Inspectorate needs to consider, when making decisions, the cumulative impact of multiple developments on communities?

[Dr Johnson]

My right hon. Friend is right. I will come on to the cumulative effect later in my speech. He will recall that the previous Government brought in measures to ensure that happened, but it does not seem to be happening.

In my survey, 91% of respondents were concerned about the enormous scale of proposals, and 73% were concerned about the use of productive farmland. The scale of the proposed developments is really difficult to describe. I brought to the former Prime Minister, my right hon. Friend the Member for Richmond and Northallerton (Rishi Sunak), maps, with overlays, of areas with which he was familiar. He saw the problem, and to his credit, he took the action that I have described. If the Minister is prepared to meet me, I would like to provide him with similar maps, so that he can see for himself the scale of these potential developments.

The developments go on for miles. As my right hon. Friend the Member for Stone, Great Wyrley and Penkridge (Sir Gavin Williamson) said, they encircle villages, preventing natural growth and home-building over time. They even encircle individual homes. One isolated rural home in my constituency may soon find itself surrounded by solar panels on all sides, like the hole in the centre of a miserable glass doughnut.

Such is the wonderful nature of my constituents that the prime concern that they have expressed to me was not for themselves, their views or their wellbeing, but for the security of the country—specifically, food security. Let us be very clear that using our best farmland for solar puts us at risk, in a volatile world, of being unable to feed our citizens. The best and most versatile land is defined as land in bands 1, 2, and 3a, although land in 3b is a valuable and entirely useable resource for farmers. In Lincolnshire, 99.1% of solar installation area covers land in the best and most versatile land category.

[Robbie Moore (Keighley and Ilkley) (Con)]

My hon. Friend is making an excellent speech. One issue not normally considered is the reinstatement provisions after a solar farm has been implemented. A vast quantity of our prime agricultural land is being taken out of production, generally for a term of 20 to 25 years. Should not consideration be given to the state of the organic matter, the soil and the potential yield of that land after the term of 25 years or longer has ended, and the negative impact on our food production?

[Dr Johnson]

My hon. Friend is right, but I do not believe that the land will ever be returned to farmland, and many of my constituents feel the same.

It is worth noting that 99.1% of solar installations cover the best and most versatile land, but tests procured by the developers appear to suggest that soil is of poorer quality than maps from the Department for Environment, Food and Rural Affairs and local knowledge would have predicted. Will the Minister ensure that where soil testing is done, the results are independently verified?

As my right hon. Friend the Member for South Holland and The Deepings (Sir John Hayes) said, Lincolnshire is the nation’s breadbasket, and produces 30% of the UK’s vegetables. The land in the county is also more productive than the UK average; the wheat harvest there, over the difficult past five years, was 25% above the UK average, and it is much more productive than global averages. This is the land that we can least afford to lose.

[Bradley Thomas (Bromsgrove) (Con)]

Does my hon. Friend agree that we face a perfect storm of conditions? There is not just a widespread societal push towards net zero, but, with changes to agricultural property relief, a real risk that solar will become the new cash crop, at the expense of valuable food production, which is as essential as energy security.

[Dr Johnson]

My hon. Friend is right. As a farmer’s wife, I understand that farmers are being put under a lot of pressure by the various changes that this Government have made to taxation on cab pick-ups, inheritance tax, national insurance and much more.

Displacing our farmland leaves us reliant on imports, which use more land, may have been produced to poorer standards, and require us to factor in transport emissions. The previous Government took action by publishing planning guidance that made it clear that the best and most versatile land should not be developed where alternatives are available—and those alternatives are available. I am pleased to have signed my name to new clause 47 to the Planning and Infrastructure Bill, which seeks to prohibit solar development on higher-quality land, and I urge the Government to support it. Let us not forget the tenant farmers, who are often on multi-generational tenancies. They suddenly find their whole family without home or livelihood.

A 2023 report for the Welsh Government on the impact of solar panels on agricultural land found that solar sites risk causing soil compaction and structural damage, which in some cases may be permanent. This means that agriculture will suffer, even after the somewhat hypothetical end of these solar schemes.

I also ask the Government to give due consideration to the three RAF bases local to my constituency: RAF Waddington, RAF Cranwell and RAF Digby. Glint and glare from reflective panels will cause problems for pilots flying over these areas. Our newest pilots undergo basic training at Cranwell, and RAF Waddington is home to the Red Arrows. It is a huge joy for me and many of my constituents to watch our nation’s iconic display team practise the loop-the-loop and roll into turns at high speeds, but the miles and miles of aligned panels creating glint and glare could lead to disaster.

[Sarah Russell (Congleton) (Lab)]

Does the hon. Lady accept that pilots already seem to manage to fly throughout our nation and many others, despite there being widespread solar panels in, for instance, Spain, where there is more sunshine? It seems unlikely that they will be unable to manage in her constituency.

--- Later in debate ---

[Dr Johnson]

I thank the hon. Lady for her intervention. I wonder if the average jumbo jet flying into Heathrow does a loop-the-loop on its way in.

RAF Digby is the headquarters of the joint cyber and electromagnetic activities group. Any interference with that part of the defence estate could cause significant harm. My constituency of Sleaford and North Hykeham faces an acute burden from the most high-impact solar schemes. Colleagues will know that projects with a capacity of more than 50 MW are classed as nationally significant infrastructure projects. Four of these large-scale schemes are proposed for my constituency, at Springwell, Fosse Green, Leoda and Beacon Fen. Their combined size is 9,340 acres. For context, that land could support grazing for more than 74,000 sheep, produce 23.5 million loaves of bread and more than 700 million Weetabix. A fifth project, just outside my constituency—proposed by a Labour donor—was recently approved by the Secretary of State. What assurance can Ministers give my constituents that the Department is assessing cumulative impacts appropriately?

We often hear that no more than 1% of land will be used for solar panels. However, as we have seen in my constituency, the application for one giant solar farm leads to a proposal for a new substation to accommodate it, which in turn leads to a deluge of further giant solar project and battery storage applications. The cumulative effect will be to destroy the area.

With nearly 7% of land in my constituency proposed to be turned over to solar farms, 9% of the land in the neighbouring constituency, represented by my right hon. Friend the Member for Newark (Robert Jenrick), and 5% of the land in the constituency of my right hon. Friend the Member for Gainsborough (Sir Edward Leigh), we can clearly see the clustering of applications on our best farmland. My hon. Friend the Member for Rutland and Stamford (Alicia Kearns) has the Mallard Pass solar farm in her constituency. I congratulate her on the birth of her child recently, which prevented her from being here; I know that this subject is a big concern for her. Indeed, it is a concern for many of us, including my right hon. Friends the Members for Newark, for Melton and Syston (Edward Argar), and for Louth and Horncastle (Victoria Atkins). As members of the shadow Cabinet, protocol prevents them from speaking in the debate, but I know that they would have wished to, and will keep campaigning.

The national policy statement says that installations should, where possible, use

“suitable previously developed land, brownfield land, contaminated land and industrial land.”

Where farmland must be used, it notes that

“poorer quality land should be preferred to higher quality land avoiding the use of ‘Best and Most Versatile’ agricultural land where possible.”

Sadly, the evidence so far suggests that the Energy Secretary is so ideologically wedded to solar projects that he has not appreciated the damage that giant solar projects are causing to agricultural land. This debate will hopefully demonstrate that covering our best farmland with massive solar projects would be irreversibly damaging to the nation. I urge the Minister to listen to me, my fellow MPs and fellow citizens before it is too late.

[Several hon. Members rose—]

--- Later in debate ---

[Tony Vaughan]

As I will come on to say, there is an issue about each area taking its fair share of developments. It is absolutely key that we support the Government’s clean energy mission and take our fair share, but we need to make sure that it is a fair share.

[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.

[Dr Johnson]

I think the hon. Member is making part of the point that I was trying to make in my speech. Some 7% of my constituency is the subject of solar panel applications. Does he agree that that is an obscene amount of solar panels to put on our best quality farmland?

[Tony Vaughan]

As I said, the whole country needs to play its part in supporting the clean energy mission, but there needs to be a fair-share principle. If all the areas of the country with similar features to my constituency played their part, there would be less of an impact in particular areas. It is an entirely fair balance to strike. The Conservatives seem to be wedded to the idea that net zero is something we should not aim for, but they have absolutely no answer as to how we solve the climate crisis.

--- Later in debate ---

[Terry Jermy]

I encourage the right hon. Member to let me get to the end of my speech, as I may answer his question. I will then be happy to have a conversation with him.

The fact is that renewable energy projects are not evenly distributed across the country. In Norfolk, our terrain is flat and quite sandy, so it is relatively easy to get things into the ground. With the likelihood of increased pylon capacity, we are attractive to solar projects and we are getting more than our fair share of applications for solar farms, which places increased burdens on certain communities.

One of my particular concerns about the influx of applications is the impact on food security. All too often, agricultural land has become the default option for solar farms because it can be cheaper than alternatives when deployed at scale, not because that is the right social and environmental option. Solar farms are not being sited on just any old agricultural land, either; they are being sited disproportionately on better-quality farmland rather than on poorer-quality land.

There is three times more grade 5 agricultural land in the UK than grade 1 land, with grade 5 being the lowest quality land, as mentioned earlier, and grade 1 being the best, yet solar installations occupy 20 times more grade 1 land than grade 5 land. That cannot be desirable, or indeed acceptable. I firmly believe that grade 2 agricultural land and above should be protected and prioritised for food production. The national planning policy framework considers grade 1, 2 and 3a land as the “best and most versatile” land, and prioritises its protection. Yet that prioritisation is clearly not influenced in the proposals.

[Dr Johnson]

Will the hon. Member give way?

[Terry Jermy]

I will not as I have limited time—apologies.

Take the Droves solar farm application in my constituency. If approved, 20% of the application site would cover grade 2 land, and about a third of the land to be used would be “best and most versatile”. We are already seeing longer and hotter summers in Norfolk, and that adds to the challenges for farmers. Irrigation is needed more frequently, adding to the cost, and more land is becoming unviable for food production. As I have said before, I am fully behind a pro-green economy and ensuring that renewable energy is not something for the future but for now.

I have huge sympathy with the Minister and the team, because our energy security is in an appalling state after 14 years of Conservative Government. We have lived through soaring energy bills and fuel poverty, and we need cheap, clean energy, but that cannot come at any cost. There are alternatives, so let us recognise that and celebrate the fact that the UK is a world leader in offshore wind, with far more capacity than any other country.

--- Later in debate ---

[Michael Shanks]

As I think I said the last time we had this exchange, I always welcome the hon. Gentleman’s numerous written parliamentary questions to me—it is a treat to see them every morning, and he does raise important points. I am not going to put a figure on it right now, but we have clearly said that it is important to find the right balance when it comes to best-use agricultural land. I will come back to that issue.

The hon. Gentleman did not let me get to my point. I just spoke about this not being a competition between energy security and food security; those were the words of the shadow Energy Secretary, the hon. Member for West Aberdeenshire and Kincardine (Andrew Bowie), not that many months ago, before the Conservatives went down the hole of denying that the climate crisis is a real thing and that our energy security and food security can co-exist. That was their policy when the hon. Member for Sleaford and North Hykeham last brought this debate to the House, which I think was nine months ago.

[Dr Johnson]

The Minister says that this is not a competition between energy security and farming security. It should not be; the reason it is becoming one is that his Government are allowing our best and most versatile farmland, used for growing crops, to be taken over by solar farms.

[Michael Shanks]

I thank the hon. Lady for her point, but it was not me saying that this is not a competition—it was her own shadow Energy Secretary just a few months ago. I do not accept her point, either; I will come to that very briefly, but in a bit more detail, in a second.

Let us not forget that this is also about tackling the climate crisis. The Conservatives might be willing to ignore that crisis, but the truth is that time and again they forget that climate change will have a devastating impact on agriculture and on land across this country. We have to do something about that, and this is part of it. Solar will be part of our energy security in the future, although it will not make up the entirety of our clean power system.

--- Later in debate ---

[Dr Johnson]

Thank you, Madam Deputy Speaker. I hope the Minister has listened carefully to what has been said, and has understood that this is not about nimbys—it is not about “not in my back yard” and it is not even about the aesthetics of solar farms. It is about the overwhelming scale of the proposals and the fact that solar farms will take up a huge amount of good-quality farmland. If one had a sensible strategy and wanted to use ground-mounted solar, one would put it in places where there is not good food-producing land; one would not put it on the best food-producing land, but that is what this Government are seeking to do.

Question put and agreed to.

Resolved,

That this House has considered solar farms.

--- Later in debate ---

[Madam Deputy Speaker (Caroline Nokes)]

I thank the hon. Member for his point. He will know that it is not a point of order, but a point of debate that perhaps would have been better dealt with in the debate itself by means of an intervention. However, if the hon. Member for Sleaford and North Hykeham (Dr Johnson) wishes to respond, she may.

[Dr Johnson]

Further to that point of order, Madam Deputy Speaker. My point was that under a Labour Government and Secretary of State, a Labour donor has been given permission to build a great big solar farm just outside my constituency. That is the point I was making: the Labour—

[Madam Deputy Speaker]

Order. We are not going to have a continuation of the debate via points of order.