UK grants and funding for commercial solar panels
Several government and local authority schemes can help UK businesses reduce the upfront cost of commercial solar. Eligibility varies by business type, size and location.
Annual Investment Allowance (AIA)
Available to all UK businesses. Deduct the full cost of commercial solar panels from your taxable profits in the year of installation, up to £1 million. This is not a grant but provides significant tax relief. A £100,000 system saves £25,000 in corporation tax (at 25%).
Rural England Prosperity Fund (REPF) and REAP
The Rural Asset Prosperity Fund provides capital grants for rural businesses and communities. Grants typically cover 25–50% of project costs, with individual awards ranging from £5,000 to £50,000. Eligibility is restricted to businesses in designated rural areas. Applications are made through your local authority.
Salix Finance
Interest-free loans for public sector organisations: schools, NHS trusts, local authorities, universities. Salix covers the full cost of energy efficiency and renewable energy projects, repaid from the energy savings achieved. Typical loan terms are 5–8 years, with no capital outlay required.
UK Shared Prosperity Fund (UKSPF)
Some local authorities allocate UKSPF money to business decarbonisation and energy efficiency. Availability is patchy and varies by council. Contact your local authority or Local Enterprise Partnership (LEP) to check.
Enhanced Capital Allowances (ECAs)
Alongside the AIA, businesses can claim 100% first-year allowances on qualifying energy-saving equipment listed on the Energy Technology List (ETL). Solar panels and associated equipment typically qualify.
Smart Export Guarantee (SEG)
Not a grant, but an ongoing revenue stream. Energy suppliers with 150,000+ customers must offer a tariff for exported solar electricity. Rates typically range from 5–15p/kWh depending on your supplier exported. To qualify, your installation must be MCS-accredited — another reason to use MCS-certified installers.
How nu.energy helps with grants
Our MCS-accredited installers are familiar with the funding landscape and can advise on which schemes you may be eligible for. Getting your quotes through nu.energy is free and carries no obligation.