The Solihull charity Landau has installed 116 solar panels across its buildings, a 50 kW array that will save roughly £12,000 a year in energy costs. That is the kind of number that makes a finance director nod. But for a UK homeowner reading this, the real figure is not the charity’s total saving, it is the per-panel output and what that means for a 3-bed semi.
As reported by The Solihull Observer, the project was funded by a grant from the Greater Birmingham and Solihull Local Enterprise Partnership. That is the first lesson for homeowners: grants exist, and they are not just for charities. The Energy Company Obligation (ECO4) scheme can cover part or all of a solar installation for low-income households. The Boiler Upgrade Scheme now includes solar thermal. And the Smart Export Guarantee (SEG) pays you for every kWh you send back to the grid, currently 5–15p per kWh depending on your supplier.
What it costs a typical 3-bed semi
A standard 3.5 kW solar PV system, roughly 10 panels, costs between £5,000 and £7,000 installed in the UK. That is about 9% of the Solihull charity’s 116-panel system, but the logic scales. A typical household using 3,500 kWh of electricity per year can shave 30–50% off its annual bill, depending on orientation and shading. At current electricity prices of roughly 27p per kWh, that is a saving of £280–£470 a year. The catch: without a battery, you export about 50–60% of what you generate. A battery adds £2,000–£4,000 but lifts self-consumption to 70–80%, cutting payback from 12–15 years to 8–12 years.
EPC impact, the hidden value
Solar panels alone do not guarantee an EPC jump. But paired with loft insulation (the cheapest fix, at £300–£500) and cavity wall insulation (£1,500–£2,500), a system can lift a D-rated home to a C or even a B. That matters because from 2025, landlords cannot let properties with an EPC below C. For homeowners, a higher EPC adds 2–5% to property value, according to Nationwide research. The Solihull charity’s installation will likely improve its buildings’ energy performance certificates by at least one band, reducing operating costs for years.
Grants and timing, act now
But the window for cheap solar is narrowing. VAT on solar panels dropped to 0% in 2022 but is due to revert to 5% in 2027. The ECO4 scheme runs until March 2026, and the Boiler Upgrade Scheme has capped funding at £7,500 per heat pump, solar thermal is not included in the current phase. The government’s Solar Taskforce is pushing for 70 GW of solar by 2035, but household installations need to accelerate. The Solihull charity’s project was grant-funded; homeowners should check the Energy Saving Trust’s postcode checker for local schemes, and apply for ECO4 through their energy supplier before the queue fills.
What this misses: the charity’s panels are on flat roofs, which require heavier mounting frames and cost 15–20% more than pitched-roof installations. Most UK homes have pitched roofs, making solar cheaper per panel. The charity also had a dedicated project manager, most homeowners do not. But local installers like those registered with MCS (Microgeneration Certification Scheme) can handle the paperwork. The key is to get three quotes, check MCS certification, and ask for a generation estimate in kWh, not just a price.
For UK homeowners, the Solihull story is not about a charity, it is about the maths. 116 panels at a school or office block is a statement. 10 panels on a semi-detached in Solihull is a bill reduction. The technology works. The grants exist. The payback is under 12 years for most. The only question is whether you act before the VAT holiday ends and the grant queues close.
Frequently Asked Questions
A typical 3-bed semi uses 3,500 kWh of electricity per year. To cover 30–50% of that, you need 8–12 panels (a 3–4 kW system). The Solihull charity's 116 panels are for commercial-scale buildings, not a home.
Yes. The ECO4 scheme covers solar panels for low-income households in certain EPC bands. Check eligibility through your energy supplier or the Energy Saving Trust. The Smart Export Guarantee also pays you for excess electricity, effectively acting as a subsidy.
