Solar Panels for Schools: Costs, Grants & Funding
Solar is a compelling investment for schools — but the key question is how to fund it. This guide covers every 2026 funding route (Great British Energy, Salix, PPAs), the costs, the savings, and the curriculum value.
The short answer
Solar panels are one of the best investments a school can make — and thanks to strong funding, they often cost the school little or nothing upfront. Schools are the most grant-supported sector for solar in the UK. The 2026 headline is Great British Energy, which has allocated £80m to fit solar on ~200 schools via capital grants (100+ already done). Beyond that, Salix Finance offers interest-free loans repaid from the energy savings, and Power Purchase Agreements (PPAs) install panels at zero upfront cost.
The financial case is strong: a typical school saves £3,000–£5,000 a year (much more for larger or boarding schools), because schools buy grid electricity at 22–30p/kWh but generate their own at an effective 6–9p — every self-consumed unit costs a third of the grid price. Add the STEM curriculum value (a real “living laboratory” for pupils) and it’s easy to see why so many schools are going solar. The biggest factor in what funding you can access is your school type — covered in full below. (Note: the old PSDS scheme is now closed to new applications.)
What this guide covers
For governors, business managers and school leaders, solar offers a rare combination: significant long-term savings, resilience against volatile energy prices, a strong sustainability statement, and genuine educational value — often with little or no upfront cost. The main thing to understand is the funding landscape, so let’s focus there.
Why solar makes sense for schools
Schools are almost ideally suited to solar. Their electricity use is concentrated in daytime hours — exactly when solar generates — so they can self-consume a high proportion of what they produce (rather than exporting it cheaply), which is where the best savings come from. They typically have large, unshaded flat or low-pitch roofs with plenty of space for a meaningful array. Their energy bills are substantial and rising, so the savings are material. And uniquely, solar offers educational value — a real-world STEM resource for pupils. Combined with the strong funding available, this makes solar one of the most sensible capital (or no-capital) decisions a school can make. Community buildings — village halls, churches, leisure centres, community centres — share many of the same advantages and funding routes.
The funding routes: how schools pay for solar
The 2026 funding landscape — often little or no upfront cost
This is the crux for most schools. The main routes in 2026:
1. Great British Energy (GBE) — the headline. The government’s clean-energy body has committed £80m to install solar on ~200 schools via capital grants (state schools; 100+ already fitted). This is the closest thing to genuinely free solar.
2. Salix Finance — interest-free loans (£20,000–£400,000) repaid from the energy savings over 5–8 years, after which all savings flow to the school. No net cashflow impact — the most-used route for state schools.
3. Power Purchase Agreement (PPA) — a third party installs and owns the panels at zero upfront cost; the school buys the power at a discounted rate. Ideal for independent schools, but the school doesn’t own the system and shares the benefit.
4. Condition Improvement Fund (CIF) — for eligible academies and sixth-form colleges.
5. Community energy & local authority funds — Mayoral Combined Authorities (Greater Manchester, West Midlands, West Yorkshire and others) run their own decarbonisation rounds.
Important: the Public Sector Decarbonisation Scheme (PSDS) is now closed to new applications (Phase 4 closed Nov 2024) — many older guides still push it, so don’t waste time on it unless your school already holds an award. Schools often combine routes (e.g. Salix for the portion a grant doesn’t cover).
School type: the biggest eligibility factor
| School type | Main funding routes |
|---|---|
| State-maintained & academies | GBE, Salix, PPA, community, CIF |
| Independent / private | PPA, reserves, low-cost bonds |
| Faith / voluntary-aided | Check each scheme (varies) |
| Schools in Wales | Welsh Government routes (not PSDS/CIF) |
The single biggest factor in what funding your school can access is its type and governance. State-maintained schools and academies have the widest options — Great British Energy, Salix Finance, PPAs and community schemes. Independent schools sit outside the public-sector schemes (Salix, CIF), so they typically fund via a PPA, their own reserves, or low-cost bonds — though the January 2025 VAT-on-fees change has sharpened many private schools’ appetite for the energy savings. Faith and voluntary-aided schools should check eligibility scheme-by-scheme, as governance affects it. And schools in Wales decarbonise through Welsh Government routes (the Welsh Government Energy Service and local-authority borrowing) rather than the England-only schemes. Working out which schemes apply before starting an application saves a lot of wasted effort — a good commercial installer will do this for you. (Our general solar grants guide covers the domestic side, and for other commercial sectors see our solar for farms guide.)
What solar costs for a school
School solar is priced per kW, and larger systems cost less per kW: below 100kW (primaries, small secondaries) ~£900–£1,200/kW; 100–500kW (secondaries, colleges) ~£750–£950/kW; above 500kW (large/independent, campuses) ~£700–£850/kW. A typical school array is 30–150kW, so a 55kW primary-school system lands around £50,000–£66,000, while a large secondary runs into the low hundreds of thousands. But — and this is the key point for a school budget — these headline costs are very often not paid upfront: a GBE grant covers it for eligible state schools, a Salix loan is repaid entirely from savings, and a PPA involves no capital at all. So the real financial impact on the school is frequently minimal or cost-neutral. 0% VAT applies until March 2027. (For general cost context, see our solar panel cost guide, though school/commercial pricing differs from domestic.)
The savings — and the number for trustees
A typical school saves £3,000–£5,000 a year, with larger schools and boarding/special schools (year-round or extended-hours use) saving considerably more. Here’s the number that convinces a governing body: schools buy grid electricity at 22–30p/kWh, but solar generates on-site at an effective 6–9p/kWh over its 25-year life — so every unit a school self-consumes costs about a third of the grid price. Because schools use most electricity in daylight hours, self-consumption is high, maximising the saving. Over the 25-year system life (panels carry a 25-year performance warranty — see our best panels guide), cumulative savings run to six figures for many schools, and surplus exported to the grid earns extra via the Smart Export Guarantee. Set that against a funding route costing little or nothing upfront, and the case is compelling. The comparison that matters to trustees isn’t cost-per-kW — it’s solar’s 6–9p against the grid’s 22–30p.
The curriculum & sustainability value
Beyond the money, solar offers something no other building upgrade does: educational value. A school solar array with live monitoring becomes a “living laboratory” — pupils can see real-time generation data, supporting KS2 and KS3 science and technology teaching on energy, electricity and climate. This curriculum link is frequently what wins governing-body support for a project, turning solar from a pure facilities decision into an educational one. There’s also the sustainability statement: with the Department for Education targeting net zero and many councils aiming for 2030, solar demonstrates leadership to parents, pupils and the community. For many schools, these softer benefits — visible commitment to sustainability and a genuine teaching resource — are as persuasive as the financial savings.
How to get started
The sensible first step is a feasibility assessment from a commercial solar installer experienced with the education sector. They’ll assess your roofs, model your generation against your actual half-hourly energy use, and — crucially — identify which funding routes your school qualifies for based on its type and location, so you don’t waste time on the wrong applications. Given that grant windows (like Great British Energy) can be competitive and time-limited, and that 0% VAT reverts to 5% in March 2027, it’s worth starting the conversation sooner rather than later. Look for an MCS-certified installer with genuine public-sector and commercial experience, ideally with references from other schools. Whether you end up with a grant-funded, Salix-financed or PPA installation, the design, install and certification process is well-established — the main work is choosing the right funding route for your school.
Frequently asked questions
How can schools fund solar panels?
Main 2026 routes: Great British Energy (£80m capital grants for ~200 state schools), Salix Finance (interest-free loans repaid from savings), Power Purchase Agreements (zero-upfront, third party owns the panels), the Condition Improvement Fund, and community/local-authority schemes. Note: PSDS is closed to new applications. School type determines what you can access.
How much do solar panels cost for a school?
£700–£1,200 per kW installed (larger = cheaper per kW); a typical 30–150kW school array. A 55kW primary system is ~£50,000–£66,000; a large secondary runs into the low hundreds of thousands. But funding (GBE grants, Salix loans, PPAs) means the upfront cost to the school is often minimal or zero. 0% VAT to March 2027.
How much can a school save with solar?
Typically £3,000–£5,000/yr (much more for large or boarding schools). Schools buy grid power at 22–30p/kWh but generate their own at an effective 6–9p — every self-consumed unit costs a third of the grid price. High daytime self-consumption maximises it. Over 25 years, savings run to six figures for many schools, plus SEG export income.
Can schools get free solar panels?
Effectively yes via several routes: Great British Energy capital grants (genuinely free for eligible state schools), a PPA (zero upfront, but a third party owns the panels and shares the benefit), or an interest-free Salix loan (repaid from savings, no net cost). Best long-term value is usually a grant or Salix loan where the school owns the system, rather than a PPA.
Does school type affect funding?
Yes — it’s the biggest factor. State-maintained schools and academies have the widest options (GBE, Salix, PPA, community, CIF). Independent schools use PPAs, reserves or bonds. Faith/voluntary-aided schools should check each scheme. Schools in Wales use Welsh Government routes, not the England-only schemes. Confirm eligibility before applying.
What’s the educational value of school solar?
A solar array with live monitoring is a “living laboratory” — pupils see real-time generation data, supporting KS2/KS3 science teaching on energy and climate. This curriculum link often wins governing-body support, and the visible sustainability statement matters to parents, pupils and the community — softer benefits that are frequently as persuasive as the savings.
The bottom line for schools
Solar panels are one of the smartest investments a UK school can make — and rarely has the funding been better. A typical school saves £3,000–£5,000 a year (often much more), by generating power at an effective 6–9p against a grid price of 22–30p, and thanks to Great British Energy grants, interest-free Salix loans and Power Purchase Agreements, most schools can install solar with little or no upfront cost. Add the STEM curriculum value and the sustainability statement, and it’s a decision that pays off financially, educationally and reputationally.
The one thing to get right is the funding route, which depends heavily on your school’s type — so the best first step is a feasibility assessment from a commercial installer experienced with schools, who’ll model your savings and identify exactly which schemes you qualify for. With grant windows competitive and 0% VAT ending in March 2027, it’s worth starting soon. If you’re a governor, business manager or school leader exploring solar, we can connect you with MCS-certified commercial installers for free, no-obligation advice and quotes tailored to your school.
Important
Going Solar UK is an introduction service, not an installer. This guide gives general 2026 information on solar for schools and community buildings for research: costs, savings, funding schemes and eligibility vary by school type, location, roof, energy use and installer, and funding programmes change frequently (Great British Energy, Salix and other schemes have their own windows and criteria; PSDS is closed to new applications) – the figures here are estimates, not guarantees. Always confirm current funding eligibility with the relevant scheme and obtain professional feasibility assessments and itemised quotes from MCS-certified commercial installers before proceeding.
We may receive a commission when we introduce you to an installer, at no cost to you. Any contract for work is directly between you and the installer.