Solar panels for UK schools — funding, savings and DfE alignment
Solar is now the default renewable investment for UK schools. Here's how to fund it — Salix, PPA, PSDS or capital — and what schools like yours typically save.
Key takeaways
- Solar PV installations allow UK schools to generate daytime power on-site, directly reducing grid reliance during high-demand term-time hours.
- Capital funding through Salix Finance or Power Purchase Agreements enables academies and local authority schools to install systems with minimal upfront cost.
- Typical UK school installations yield five to eight-year payback periods, locking in predictable electricity overheads against future grid price volatility.
Funding routes for UK schools
Salix low-interest loans
0% or below-market rate loans for public-sector energy projects, repaid from energy savings. A common route for LA-maintained schools and colleges.
Power Purchase Agreement (PPA)
£0 upfront — a third party owns the system and sells electricity back at a fixed discount to grid. Popular with MATs and standalone academies.
Public Sector Decarbonisation Scheme (PSDS)
Grant funding for heat and energy projects on the public estate. Solar often bundled with heat pumps and fabric upgrades in a single bid.
MAT capital + reserves
Larger multi-academy trusts often fund direct from reserves — 6–8 year payback and 25-year asset outperforms alternative uses of cash.
Typical school system sizes
- Primary school: 25–60 kWp, £22k–£55k, £4k–£9k/yr savings.
- Secondary school: 100–200 kWp, £90k–£180k, £15k–£35k/yr savings.
- Sixth-form/college campus: 200–500 kWp, £180k–£450k, £30k–£80k/yr savings.
- MAT-wide programme: 500 kWp – 5 MW aggregated, PPA-funded, day-one net-positive cash flow.
Related reading
FAQ
Can UK schools install solar panels?
Yes. All UK schools — maintained, academy, independent and further education — can install solar. Funding routes include Salix loans, PPAs (£0 upfront), PSDS grants, or direct capital. Landlord consent is usually straightforward for LA-maintained schools.
How much can a UK school save with solar?
A typical secondary school installs 100–200 kWp and saves £15,000–£35,000 a year on electricity, plus locking in a hedge against future price rises. Payback is 6–9 years on direct purchase and net-positive from day one on a PPA.
Do schools qualify for solar grants?
Yes. The Public Sector Decarbonisation Scheme funds solar as part of wider decarbonisation projects, and Salix provides interest-free loans repaid from savings. Grant availability changes year to year — check current rounds before designing a bid.
Is solar compatible with the DfE Sustainability & Climate Change strategy?
Yes — solar is explicitly named as a route to reduce direct emissions from the school estate. Generation and savings data feed directly into the Climate Action Plans schools are asked to produce.
What happens with solar over school holidays when consumption drops?
Summer generation is highest exactly when school occupancy is lowest, so schools typically export 30–45% of summer output. SEG rates of 15p/kWh keep the economics working, and battery storage can improve self-consumption for schools with weekend lettings.
Get an indicative saving for your school
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