Eligibility checker
Find out which commercial solar grants your business qualifies for.
Four steps, about four minutes. We reply by email with a written shortlist of grants you are credibly eligible for, indicative project sizing, and ballpark capex with payback after support.
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Covers every UK funding route
Covers every UK funding route: the AIA, 50% special-rate FYA, SEG, PPAs and devolved schemes, and tells you which have closed (IETF closed July 2025).
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Independent assessment
We don't sell solar panels. The honest answer might be "AIA + a PPA", not a grant — and we'll say so.
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No commitment
Free scoping. Fees only if you ask us to write the application.
Explore this guide cluster
Commercial solar grants & funding
Every active 2026 route to fund commercial solar — grants, tax allowances and loans — with the eligibility and application detail behind each.
Pillar guideCommercial solar grants & incentivesThe master guide to what is open and closed in 2026.- Commercial solar panel grantsGrant routes for rooftop and ground-mount PV.
- Solar grants for businessesFunding by business type and size.
- UK government solar grantsCentral and devolved government schemes.
- Annual Investment Allowance on solar25% effective tax saving, no application; full expensing does not apply.
- Annual Investment AllowanceAIA on solar capital expenditure.
- Solar tax reliefEvery capital allowance that applies to PV.
- Salix funding (public sector)Interest-free loans for schools and the NHS.
- Salix Finance loansHow the Salix loan mechanism works.
- Local Growth FundMayoral and combined-authority funding.
- Rural England Prosperity FundCapital grants for rural enterprises.
- IETF (closed July 2025)IETF (closed July 2025) status and the routes that replaced it.
- How to apply for a solar grantThe step-by-step application process.