Solar panels for schools, FAQs
Answers to the questions school leaders ask most, checked against primary sources. Last updated for 2026.
These are the questions headteachers, school business managers and Multi-Academy Trust estates teams ask most — not generic solar FAQs, but the specific things that decide whether a school project goes ahead. They cover the money (how much it costs, what funding is actually open in 2026), the safeguarding (what checks installers need, when the work happens), the practical (what happens during the summer holidays, single-phase supplies, listed buildings), and the educational (can it be used in lessons). If your question isn't here, send it through the form on this page.
How much do solar panels for a school cost in the UK?
There is no official price list for school-sized arrays. The DESNZ cost statistics for 2025/26 put the median installed cost of a 10–50 kW system at £1,262 per kW, including VAT where applicable, and DESNZ publishes no band above 50 kW. Using a planning range of £1,000–£1,260 per kW, a 50 kW primary array comes to roughly £50,000–£63,000 and a 100 kW secondary array roughly £100,000–£126,000 — often less once real quotes arrive. See the school solar cost guide for worked examples.
Can we get free solar panels for our school?
Only if your school is selected. By July 2026, 245 schools and colleges had government-funded solar, and 150 more in Yorkshire and the Humber, the East Midlands and the South East are piloting installs at no upfront cost. Government chooses those schools; there is no application. Otherwise the no-capital route is a power purchase agreement, where you pay for the electricity rather than the panels. There is no Salix loan for English schools, and PSDS closed to new applications in November 2024.
What is Salix Finance, and does it lend to schools?
Salix administers public-sector decarbonisation funding on behalf of government. In England its current schemes are grants — PSDS projects still being delivered, and housing schemes — and it runs no loan scheme for schools. In Scotland it runs zero-interest public-sector loans, including the Scotland Recycling Fund, which lists schools among eligible applicants through their local authority or governing body. In Wales it runs the Wales Funding Programme, which lends to public bodies at a fixed rate. See Salix funding for schools.
How long does a school solar installation take?
Most installs are scheduled for school holidays. The physical install typically takes 2–6 weeks for a primary (30–80 kW) and 4–10 weeks for a secondary (100–300 kW). The G99 grid application is usually the longest item, so it should start straight after the structural survey; from first enquiry to commissioning commonly takes six to nine months.
What safeguarding checks should solar installers have?
Safeguarding comes first on any school site. Under Keeping Children Safe in Education the school must satisfy itself that contractor staff have had the appropriate checks, so ask the installer to confirm in writing that every operative will hold an enhanced DBS check (with a children’s barred list check where they will be in regulated activity), how they will be supervised, and how they will follow your sign-in and escorting procedures. KCSIE 2026 is explicit that a contractor on whom no checks have been obtained should never work unsupervised or engage in regulated activity.
Can solar panels be used as a teaching resource?
Yes. Many school installs include a live-generation display for the lobby or main hall, and monitoring data can feed KS2 and KS3 Geography, Science and Design & Technology — real-time generation, lifetime kWh and CO2 saved. Ask for it in the specification: it is cheap to include at install and awkward to add later.
What about generation during school holidays?
The summer holiday is the highest-generation period of the year, when a term-time school uses least. Surplus can earn export income under the Smart Export Guarantee at a rate each supplier sets — it only has to be above zero. A small battery (50–150 kWh) can shift some holiday and weekend generation into term-time use; whether it pays depends on your own meter data.
Can we install solar on a listed school building?
Often yes, with consent. In England rooftop panels on a listed building, or within its curtilage, are not permitted development, so you need planning permission as well as Listed Building Consent. Engage the conservation officer early; panels can sometimes be limited to less-visible roof slopes or rear elevations. See our guide to solar on listed and Victorian school buildings.
Will solar panels affect our school's Ofsted inspection?
Not directly. Inspections focus on education, so a solar array is unlikely to feature unless it is used in lessons.
What funding is available for academies vs maintained schools?
In England neither has an open grant or loan scheme for solar as of October 2026: PSDS closed in November 2024 and there is no Salix loan. Maintained schools draw on local authority capital and devolved formula capital. Stand-alone academies, trusts with fewer than five schools or fewer than 3,000 pupils, qualifying voluntary aided schools and sixth-form colleges can bid into the Condition Improvement Fund, which funds condition work rather than solar on its own; larger trusts and local authorities receive School Condition Allocation. Independent schools use reserves, bonds or a PPA.
How does this fit with the DfE Sustainability and Climate Change Strategy?
Solar PV is a practical contribution to the DfE Sustainability and Climate Change Strategy, and the monitoring data gives clear, auditable evidence of progress for governors and trust boards.
What happens during the install, will it disrupt teaching?
The noisy and disruptive phases — roof access, scaffold erection, panel transport — should be scheduled for school holidays. Final commissioning and grid connection are usually 1–2 day events, best timed for an INSET day or a Friday-evening switchover.
Can a Multi-Academy Trust roll this out across all our schools?
Yes, and the economics are often stronger at trust scale: one feasibility study across the estate, a single portfolio business case, phased delivery aligned with school-holiday windows, and central monitoring across all sites. See solar for multi-academy trusts.
What about schools with single-phase electrical supply?
They are common in older primary schools. G98 covers up to 16 A per phase (3.68 kW per phase); anything larger needs a G99 application. A 60–100 amp single-phase supply also caps practical PV well below what a large roof could hold, so a three-phase upgrade may be needed for a larger system — the feasibility study should check the supply first.
Is there anything specific to Church of England or Catholic schools?
Voluntary aided (VA) and voluntary controlled (VC) schools have a diocesan board involved in capital decisions. The diocese typically needs to approve material works to the building. Some dioceses have their own 'route to net zero' programmes (the Church of England target net zero by 2030) which align well with school solar projects.
Do we need planning permission?
Usually not, in England. Most rooftop school solar is permitted development under Class J of Part 14 of the GPDO 2015 — the non-domestic class; Class A covers houses. It does not apply to listed buildings or scheduled monuments, and arrays over 50 kW need a prior-approval application on design and glare. In a conservation area rooftop panels remain permitted development; only wall-mounted panels fronting a highway lose it. Scotland and Wales have their own rules — see planning permission for school solar panels.