Guide
Every grant, scheme, and incentive that can reduce your UK solar installation cost
UK solar installations benefit from several government-backed schemes in 2026. The 0% VAT rate on energy-saving materials (valid until 31 March 2027) saves £1,000–£2,500 on a typical installation. The Home Energy Scotland Grant offers up to £6,000 for solar PV + battery. ECO4 targets low-income households. And the Smart Export Guarantee provides ongoing income for exported electricity. This guide covers eligibility, application processes, and how to stack multiple schemes.
Primary keyword: solar panel grants uk 2026
Solar ROI Explained
UK solar installations benefit from several government-backed schemes in 2026. The 0% VAT rate on energy-saving materials (valid until 31 March 2027) saves £1,000–£2,500 on a typical installation. The Home Energy Scotland Grant offers up to £6,000 for solar PV + battery. ECO4 targets low-income households. And the Smart Export Guarantee provides ongoing income for exported electricity. This guide covers eligibility, application processes, and how to stack multiple schemes.
Use the calculator inputs first, then compare the result against local rates, incentives, roof conditions, and utility export rules.
0% VAT
HMRC VAT Notice 708/6
0% VAT on solar panels, batteries, and heat pumps until 31 March 2027. Saves ~£1,000–£2,500. Source: gov.uk/vat-energy-saving
Scotland grant
Home Energy Scotland
Up to £6,000 grant for solar PV + battery storage. Additional £2,500 for heat pumps. Source: homeenergyscotland.org
ECO4 scheme
Ofgem ECO4
Energy Company Obligation targeting low-income and fuel-poor households. Covers solar PV and insulation. Source: ofgem.gov.uk/eco4
SEG income
Ofgem Smart Export Guarantee
Ongoing payment for exported solar electricity at 6–27p/kWh. Source: ofgem.gov.uk/seg
Formula Assumptions Data Sources FAQ Related Links
Since April 2022, the UK government has applied a 0% VAT rate to energy-saving materials including solar panels, battery storage, and heat pumps. For a typical £6,000–£8,000 solar installation, this saves £1,000–£2,500 compared to the standard 20% rate. The relief is scheduled to end on 31 March 2027—after which VAT reverts to 20%. MCS-certified installers automatically apply the 0% rate at point of sale; no separate application is needed.
Scotland offers the most generous UK solar grants. The Home Energy Scotland Grant provides up to £6,000 for solar photovoltaic (PV) systems with battery storage, plus up to £2,500 for heat pumps. The grant is means-tested in some cases, with higher amounts available for rural and island households. Applications go through Home Energy Scotland's online portal, and the installer must be MCS-certified.
The Energy Company Obligation (ECO4) requires larger energy suppliers to fund energy efficiency improvements for low-income and fuel-poor households. Solar PV is one of the eligible measures under ECO4's 'innovation' pathway. Eligibility depends on receipt of certain benefits (Universal Credit, Pension Credit, Child Benefit with income thresholds) and property EPC rating. Contact your energy supplier or a registered ECO installer to check eligibility.
Generally yes. The 0% VAT applies to all residential solar installations regardless of other funding. The Home Energy Scotland Grant can be combined with the 0% VAT rate. ECO4 cannot be combined with Home Energy Scotland (different regions). SEG is separate—it pays for exported electricity after installation regardless of how the system was funded. Always check with your installer and the scheme administrator before committing.