Solar grants and funding for schools & academies
Schools, academies, and multi-academy trusts have access to the most generous capital-grant routes in UK commercial solar. PSDS Phase 4 routinely covers 75–100% of qualifying spend on bundled decarbonisation packages, the Department for Education's Condition Improvement Fund (CIF) covers solar where part of broader fabric upgrades, and Salix loans cover the residual at zero interest. Trust-portfolio applications consistently outperform single-school applications.
75–100% of qualifying capex
Funding routes for schools & academies
PSDS Phase 4 (the headline route)
Public Sector Decarbonisation Scheme Phase 4 — solar PV qualifies as part of bundled decarbonisation packages with heat pumps, fabric efficiency, and BMS upgrades. Schools and MATs eligible directly; cost-per-tonne thresholds (under £350/tonne typical) drive scoring. Application windows usually 8 weeks open with awards announced 12–16 weeks after window close. Awarded projects must commission within 18–24 months.
Salix decarbonisation loans
Zero-interest loan facility administered by Salix complementing PSDS grants. Typically funds the non-grant portion of bundled projects (e.g. 25% loan + 75% PSDS grant). Repaid through demonstrated energy savings over 8–10 years. Schools, MATs, FE colleges all eligible.
Condition Improvement Fund (CIF)
DfE-administered fund for academy and sixth-form college estate condition. Solar PV qualifies where part of broader roof or fabric improvement (often integrated with re-roofing, insulation, or window replacement). Annual application window. Trust-level applications outperform single-school applications on scale efficiency.
School Rebuilding Programme
DfE programme covering complete school rebuilds (selected sites). New buildings include solar PV as standard for projects coming through the programme — schools selected for full rebuild access solar without separate funding application.
Local authority climate funds
Many councils operate dedicated school decarbonisation programmes alongside the national routes — particularly where the council retains education function. WYCA, GMCA, WMCA, and similar combined-authority programmes support school estate within their footprint.
Innovate UK competitions (specialist)
For specific demonstration projects (battery integration, smart-grid services, agrivoltaics on school grounds), Innovate UK competitions offer 50–70% of qualifying R&D and demonstration costs. Niche but high-value where applicable.
Worked example: 1.2 MWp across 8 schools (West Yorkshire MAT)
- Total capex: £960,000 across 8 secondary schools
- Bundled application: solar PV + heat pumps on 4 sites + LED relighting + BMS upgrades
- PSDS Phase 3 award: 78% (£748,800) of qualifying capex
- Salix loan: 22% (£211,200) at zero interest, 9-year term
- Trust-level cash outlay: £0 on grant component, £211k loan repaid through energy savings
- Year-one combined electricity saving: £215,000 across 8 sites
- Carbon savings: 480 tonnes CO₂ year one, 12,000 tonnes 25-year cumulative
- CO₂ cost-per-tonne: £342 — competitive against Phase 4 soft cap of £350/tonne
Best application strategy
For MATs and individual schools considering a Phase 4 application, the strongest strategy is portfolio-level bundled applications: 5+ schools combined, solar paired with heat pumps and fabric upgrades, with detailed half-hourly demand modelling per site. Solar-only school applications rarely score competitively because schools' grid-emissions counterfactual is already partly decarbonised — bundles drive the cost-per-tonne metric below the Phase 4 soft cap.
Schools & Academies grants FAQs
When does PSDS cover 100% of school solar capex?
Can academies use AIA or FYA on school solar?
Can schools access PPA arrangements?
How do I apply for PSDS as a multi-academy trust?
What about the new School Rebuilding Programme?
Complete guide to solar grant funding for schools
Schools and academy trusts have multiple routes to grant and concessional funding for commercial solar. The key is matching the right funding stream to your school type, budget, and timeline. Grant funding can cover 60–100% of project costs, making solar achievable with minimal or zero capital from school budgets.
SALIX Education Decarbonisation Fund
SALIX Finance administers the Education Decarbonisation Fund specifically for the school estate. The fund provides grants (not loans) covering 60–80% of eligible solar and decarbonisation project costs for schools in England. Applications are made via the SALIX online portal; guidance is available on the SALIX website and DfE guidance pages.
Eligible schools
State-funded schools in England including: maintained schools (via LA), academy schools and trusts, free schools, studio schools, and university technical colleges (UTCs). Independent schools are NOT eligible.
Application requirements
DfE Unique Reference Number, current energy bills (12 months), building floor areas, EPC data, detailed project specification and costs from qualified installer. The stronger the evidence of poor building energy performance, the higher the grant award likely.
Priority building criteria
SALIX prioritises projects with: high fossil fuel dependency (gas heating replacing with solar + heat pump), poor EPC rating (D or below), high energy intensity (kWh/m² above sector average), and clear pathway to net zero.
SALIX 0% interest loans for schools
Alongside the Education Decarbonisation Fund grant, SALIX offers interest-free loans that repay from energy savings. For academy trusts and schools where capital grant only partially covers project cost, the SALIX loan covers the remainder. Repayment is typically over 5–10 years, matching the loan to the savings generated.
| School size | Typical solar project cost | SALIX grant (70%) | SALIX loan (30%) | Annual energy saving |
|---|---|---|---|---|
| Primary (250 pupils) | £22,000–35,000 | £15,400–24,500 | £6,600–10,500 | £5,500–8,500 |
| Primary (400 pupils) | £30,000–50,000 | £21,000–35,000 | £9,000–15,000 | £7,000–12,000 |
| Secondary (700 pupils) | £55,000–90,000 | £38,500–63,000 | £16,500–27,000 | £13,000–22,000 |
| Secondary (1,500 pupils) | £90,000–150,000 | £63,000–105,000 | £27,000–45,000 | £22,000–37,000 |
| MAT (10 schools) | £300,000–800,000 | £210,000–560,000 | £90,000–240,000 | £70,000–190,000 |
Diocesan and multi-academy trust programmes
Church of England and Catholic Education Council
Many dioceses have established centralised solar programmes for their school estate, procuring systems in bulk to reduce per-school costs by 15–25%. If your school is in a diocese with a programme, this may be faster than applying individually to SALIX.
MAT-wide SALIX applications
Large MATs (10+ schools) can submit consolidated SALIX applications covering the entire estate. This reduces administrative burden, allows portfolio procurement (reducing costs), and demonstrates systemic decarbonisation ambition that scores well in SALIX assessment.
Local authority solar programmes for maintained schools
Some progressive local authorities have established LA-wide solar programmes for their maintained school estate, using a blend of PSDS grant, SALIX loan, and LA capital budgets to fund installations across multiple schools simultaneously. Councils like Bristol, Leeds, and Nottinghamshire have installed 5–20MWp of school solar through coordinated programmes.
LA programme benefits for schools
Centrally negotiated contracts achieve 10–20% lower install costs than individual school procurement. LA holds the PSDS grant relationship; school only needs to cooperate with access and installation. All administration handled centrally.
PPA as an alternative where grants are not available
For schools that miss SALIX application windows, independent schools ineligible for public funding, or schools needing faster installation than grant timelines allow, a PPA provides solar with zero capital and no debt. The school pays per kWh of electricity generated at a rate 10–20% below grid tariff.
School PPA considerations
Ensure the developer handles planning permission, structural survey, and all LA consents. Academy trusts can sign PPAs directly; maintained schools need LA sign-off. Contract terms of 15–20 years should not exceed school building expected life.
Mapping your eligibility for schools & academies grants
Send your organisation type, postcode, and project profile. We map your eligibility across grants, revolving loans, regional funds, and tax incentives in five working days.
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