The UK’s solar pipeline just got 112 MW thicker. Elgin Energy, a developer backed by the Irish infrastructure fund, has begun construction on four solar farms in England and Scotland, enough to power roughly 35,000 homes at peak output. The first panels will go live in 2026.
As reported by Renewables Now, the projects include sites in Lincolnshire, Suffolk, and two in Scotland. Construction is underway now. For UK homeowners, the question is not whether the sun shines on these fields, it is whether any of that light lands on your electricity bill.
Wholesale prices and your annual statement
Large-scale solar farms feed the grid, not individual homes. Every megawatt of solar generation displaces gas-fired power during sunny hours, which lowers wholesale electricity prices. Ofgem data shows that wholesale costs make up roughly 40% of a typical household bill. So more solar means cheaper daytime electricity, in theory.
In practice, the effect is indirect and delayed. The 112 MW from Elgin is roughly 0.3% of the UK’s peak demand. Alone, it will not move the needle on your January direct debit. But cumulatively, the UK now has over 17 GW of installed solar capacity, and the government targets 70 GW by 2035. Each new farm adds downward pressure on wholesale prices. The Energy Systems Catapult estimates that every 10 GW of new solar could reduce household bills by £10–15 a year by 2030. Not a revolution, but not nothing.
What this means for rooftop solar decisions
The catch is that large-scale solar and rooftop solar are different markets. Elgin’s farms sell power via corporate PPAs or the wholesale market. Your roof array sells power to you directly, at the retail rate of 24–27p/kWh. That gap, wholesale versus retail, is why rooftop solar remains the better deal for individual households.
A typical 4 kW system on a south-facing roof in Birmingham generates about 3,600 kWh per year. At current retail rates, that saves around £900 annually. Even after the April 2025 cut to the Smart Export Guarantee (now typically 5–6p/kWh), the payback period sits around 8–12 years, according to Energy Saving Trust figures. The EPC uplift is also real: a well-sited solar array can lift a D-rated property to a C, which matters for mortgage rates and future rental regulations.
But the timing matters. The government’s Clean Heat Market Mechanism and the upcoming zero-VAT extension on solar installations (currently confirmed until March 2027) mean now is a good moment to install. Elgin’s farms will not change that calculus, they are a grid-scale play, not a consumer one.
Who benefits, and who doesn’t
Households on time-of-use tariffs (like Octopus Flux or EDF’s GoElectric) will see a more direct benefit from large-scale solar. When the grid is awash with cheap solar at midday, these tariffs offer low rates for charging EVs or running heat pumps. A homeowner with a battery and an EV can effectively arbitrage that cheap solar, charging at 5p/kWh midday and discharging at 25p/kWh in the evening. That is where grid solar meets household savings.
For everyone else on a standard variable tariff, the benefit is zero until the wholesale price drop feeds through to the price cap, which Ofgem reviews every three months. The October 2025 cap is expected to fall slightly, partly due to renewables, but the effect is small.
Yet the biggest missed opportunity is for the 1.5 million UK households whose roofs are suitable for solar but who have not yet installed. Elgin’s 112 MW could have been 28,000 rooftop arrays of 4 kW each, generating power where it is consumed and avoiding grid losses. The government’s Solar Taskforce has acknowledged this, but planning rules and installer shortages remain bottlenecks.
What to do next
If you own a 3-bed semi with a south- or east-west facing roof, get a quote now. The zero-VAT rate runs until March 2027, but installer lead times are already stretching to 8–12 weeks in some regions. Check the Energy Saving Trust’s solar calculator for your postcode. If you are on a time-of-use tariff, pair the array with a battery, the payback drops to 6–8 years. And if you cannot install panels, consider a community solar subscription: schemes like Ripple Energy let you buy a share of a large solar farm and get credits on your bill. That is the closest most households will come to Elgin’s 112 MW.
Frequently Asked Questions
No. The power from these farms is sold on the wholesale market, not to individual households. However, every new solar farm adds downward pressure on wholesale prices, which over time can reduce the wholesale component of your bill, typically about 40% of the total. The effect is gradual and shared across all consumers.
No. Rooftop solar saves you money at the retail rate (24–27p/kWh), which is far higher than the wholesale rate these farms receive. With the zero-VAT scheme confirmed until March 2027 and payback periods of 8–12 years, installing now is financially sensible. Waiting only delays savings.
