Solar Panels Grants Guide

The UK government has several ways to help homeowners reduce the cost of going solar in 2026, and the savings can be significant. Between zero VAT on installations, the Smart Export Guarantee paying you for electricity you export, and grant schemes for lower-income households, the total financial benefit over the lifetime of a system often runs into the thousands of pounds.

The most valuable support right now is the 0% VAT rate on solar panel installations, which runs until at least March 2027 and saves the average homeowner around £1,500 on a typical 4kWp system. On top of that, the Smart Export Guarantee (SEG) pays you between 10p and 28p for every unit of surplus electricity you send back to the grid. If your household qualifies under ECO4 or the Warm Homes Local Grant, you could receive a solar installation at no cost at all.

This guide covers every grant, scheme, and financial incentive available to UK homeowners in 2026, including what’s available in Scotland, Wales, and Northern Ireland. We’ve also included the latest on the government’s Warm Homes Plan, which sets out £13.2 billion of investment in home energy upgrades through to 2030.

Key Takeaways

• Solar panels in the UK attract 0% VAT until at least March 2027, saving £1,200–£2,200 on a typical installation.
• The Smart Export Guarantee (SEG) pays you for electricity you export to the grid, current rates range from 5p to 15p per kWh.
• The Boiler Upgrade Scheme (BUS) offers £7,500 towards heat pump installation, which works well alongside solar panels.
• Scotland has its own grant scheme: Home Energy Scotland loans of up to £15,000 (interest-free for renewables) plus cashback of up to £7,500.
• Wales has the Warm Homes Programme, which can fund solar and insulation for eligible households.
• ECO4 and the Warm Homes Local Grant can fund solar panels for qualifying low-income households.

Solar Panel Grants and Incentives Available in the UK (2026)

The UK government does not offer a direct solar panel grant for most homeowners, there’s no scheme that simply hands over cash to buy solar panels outright. But what exists is arguably more valuable: a combination of VAT relief, export tariffs, and complementary grants that together significantly reduce the net cost of going solar.

This guide covers every scheme available in 2026, including the differences between England, Scotland, and Wales.

The Warm Homes Plan: The Government’s Flagship Energy Policy

The Warm Homes Plan is the UK government’s overarching energy efficiency strategy, announced in 2024 and funded through to 2030. It commits £13.2 billion to upgrading homes across Great Britain, reducing energy bills, cutting carbon emissions, and eliminating fuel poverty. For homeowners and renters, it’s the most significant government commitment to home energy upgrades in a generation.

The plan isn’t a single grant you can apply for directly. Instead, it’s the funding framework that underpins multiple schemes: the Warm Homes Local Grant (administered by local councils), the Great British Insulation Scheme, the ECO4 scheme, and the Boiler Upgrade Scheme. Think of it as the parent policy that keeps these programmes funded through 2030.

For solar panel owners and prospective buyers, the Warm Homes Plan matters because it commits the government to funding household energy upgrades at scale. The Warm Homes Local Grant, which sits within this plan, provides up to £15,000 for owner-occupiers and £30,000 for private renters towards solar panels, heat pumps, insulation, and battery storage. Unlike previous short-term schemes that closed abruptly, the Warm Homes Plan has a guaranteed 2030 funding horizon, giving councils time to build out delivery programmes.

Scotland, Wales, and Northern Ireland have their own equivalents funded through Barnett consequentials: Scotland has its Home Energy Scotland programme and forthcoming Scottish Warm Homes Fund, Wales has the Warm Homes Programme, and Northern Ireland has the Affordable Warmth Scheme. The detailed schemes are covered separately below.

0% VAT on Solar Panels (England, Scotland, Wales, Northern Ireland)

Since April 2022, solar panel installations (and associated equipment including batteries) have attracted 0% VAT throughout Great Britain and Northern Ireland. This applies to both the panels themselves and the installation labour.

On a typical 4kWp solar installation costing £8,000–£11,000, the VAT saving is:

• At 20% VAT: £1,600–£2,200 would have been added to the bill
• At 0% VAT: nothing added, that saving is already built in to any quote you receive

This relief is confirmed until at least March 2027 by HMRC. It extends to battery storage installed at the same time as panels, and, following a 2024 update, also to standalone battery storage retrofitted to existing solar systems.

What this means in practice: When you get a quote from an MCS-certified installer, that quote should already reflect 0% VAT. If a quote adds 20% VAT on top, query it immediately.

Smart Export Guarantee (SEG)

The Smart Export Guarantee requires energy suppliers with 150,000 or more customers to pay solar panel owners for electricity they export to the grid. It replaced the old Feed-in Tariff (which closed to new applicants in 2019).

To qualify, you need an MCS-certified installation and a smart meter capable of recording export.

Current SEG rates from major suppliers (April 2026):

A typical 4kWp system exports around 1,000–1,500 kWh per year (the portion of generation not consumed in the home). At 10p/kWh average SEG rate, that’s £100–£150 per year in export income. At 15p/kWh (Octopus best rate), it’s £150–£225 per year.

You don’t have to stay with your existing energy supplier for SEG, you can sign up with a different supplier specifically for your export payments. Octopus Energy’s SEG rate is consistently among the highest, so it’s worth applying even if you buy your electricity elsewhere.

Boiler Upgrade Scheme (BUS), £7,500 Grant

The Boiler Upgrade Scheme provides a £7,500 voucher towards the cost of an air source heat pump (ASHP) or a £5,000 voucher for a ground source heat pump (GSHP). Solar panels are not directly funded by BUS, but the scheme is highly relevant because solar and heat pump combinations work extremely well together.

An ASHP heats your home and hot water using electricity, typically with a coefficient of performance (COP) of 3–4, meaning you get 3–4 kWh of heat for every 1 kWh of electricity consumed. When that electricity comes from your solar panels, the effective cost of heating drops dramatically.

If you’re planning solar installation, it’s worth considering the BUS at the same time. The £7,500 grant significantly reduces the cost of the heat pump, and the combined solar + heat pump system can reduce a typical home’s energy bills by 70% or more.

BUS vouchers are applied for by your MCS-certified heat pump installer, not by you directly. The scheme is open to properties in England and Wales. Scotland has separate funding (below).

ECO4 Scheme, Solar for Low-Income Households

The Energy Company Obligation (ECO4) requires large energy suppliers to fund energy efficiency improvements for low-income and vulnerable households. Solar panels are eligible under ECO4 for qualifying properties.

To qualify for ECO4 funding, you typically need to:

• Receive certain benefits (Universal Credit, Housing Benefit, Child Tax Credit, etc.)
• Live in a home with an EPC rating of D, E, F, or G
• Own or privately rent your home (or live in social housing via some routes)

ECO4 funding is allocated via energy suppliers who then commission local installers. Contact your energy supplier directly or check the government’s ECO4 eligibility tool to start the process. The level of funding varies, in some cases, solar panels may be fully funded; in others, a contribution is required.

ECO4 runs until March 2026 (with a successor scheme expected). If you think you might qualify, apply as soon as possible.

For a full breakdown of qualifying criteria, the application process, and what funding to expect, see our dedicated guide to ECO4 solar panels.

Warm Homes Local Grant

The Warm Homes Local Grant is the main government grant for residential solar panels and energy efficiency upgrades in England. It’s administered by local councils, funded through the Warm Homes Plan, and runs until 2030. Owner-occupiers can receive up to £15,000 per property. Private renters (or landlords applying on behalf of tenants) can receive up to £30,000.

To qualify, you need to meet at least one of these criteria: household income below £36,000 per year (gross); receipt of a qualifying means-tested benefit (Universal Credit, Pension Credit, Child Tax Credit, or similar); or residence in a postcode officially designated as low-income by your local authority.

Your property must have an EPC rating of D or below (E, F, or G also qualify). The council’s assessors will visit your home, recommend a package of measures, and oversee installation through approved contractors. Solar panels are eligible, often alongside insulation and a heat pump as part of a whole-home upgrade approach.

Not all councils have received their funding allocation yet. To check whether your area is accepting applications, visit gov.uk/apply-warm-homes-local-grant and enter your postcode. Some councils have waiting lists; others are yet to launch their programmes. This scheme does not need to be repaid.

Home Upgrade Grant, England

The Home Upgrade Grant (HUG2) provided funding for energy improvements to off-gas-grid homes in England. If you live in a rural property not connected to the gas network, this scheme (or its successor) may fund solar panels as part of a wider energy improvement package. Check with your local authority for the current status, the HUG2 scheme’s second phase was active through 2024–2025, with a successor expected.

Scotland: Home Energy Scotland Grants and Loans

Scotland has a more generous and accessible grant scheme for solar panels than the rest of the UK through the Home Energy Scotland programme, administered by Energy Saving Trust on behalf of the Scottish Government.

Available funding in 2026:

• Interest-free loan: Up to £15,000 for renewable energy improvements including solar panels and battery storage. No interest charged for the first six years, effectively free money if repaid within that period.
• Cashback grant: Up to £7,500 towards eligible renewable installations (amount varies based on measures installed).
• Rural uplift: Properties in rural Scotland may qualify for enhanced cashback rates.

The combination of loan and cashback means a Scottish homeowner installing a 4kWp solar system with battery storage (total cost approximately £14,000) could receive:

• Up to £7,500 cashback grant
• Up to £15,000 interest-free loan (covering the remainder)
• Net cost after cashback: approximately £6,500, repaid interest-free over up to 12 years

Apply via the Home Energy Scotland website or call their helpline. An assessor will visit to confirm eligibility and the appropriate measures.

Warmer Homes Scotland: For low-income Scottish households, the Warmer Homes Scotland scheme provides free energy efficiency improvements including renewable installations. Eligibility is means-tested. Contact Home Energy Scotland for details.

Wales: Warm Homes Programme

In Wales, the Warm Homes Programme (administered by Welsh Government) supports energy efficiency improvements for eligible households. There are two strands relevant to solar:

Nest: Free energy efficiency improvements (potentially including solar panels) for owner-occupiers and private renters on means-tested benefits or with a health condition affected by cold. Contact Warm Wales or call the Nest helpline to check eligibility.

Optimised Retrofit Programme: A larger programme targeting whole-house improvements for social landlords. Not directly applicable to most homeowners but worth checking if you live in social housing.

Wales does not currently have a direct equivalent to Scotland’s Home Energy Scotland interest-free loan for market-rate homeowners. However, the Boiler Upgrade Scheme (BUS) applies in Wales for heat pump grants, and 0% VAT applies as in England.

Northern Ireland

Northern Ireland has its own energy regulator (NIRO) and some distinct incentive structures. The Reconnect renewable energy grant scheme administered by the Northern Ireland Sustainable Energy Programme (NISEP) has provided funding for solar panels in previous years. Check with the Utility Regulator NI for current availability.

How to Apply for Solar Panel Grants in the UK

The application process varies by scheme, but these steps apply in most cases:

1. Get an MCS-certified installer to assess your property. Most grants require MCS certification. A reputable installer will know which schemes you might qualify for and can help with applications.

2. Apply for ECO4 or local authority grants. Contact your energy supplier (for ECO4) or local council (for Warm Homes Local Grant). Your installer may handle this on your behalf.

3. Apply for Home Energy Scotland (if in Scotland) via the Home Energy Scotland website before commissioning installation, funding must typically be arranged in advance.

4. Register for SEG after installation. Contact your energy supplier or chosen SEG provider with your MCS certificate.

5. Claim 0% VAT automatically, this is applied by your installer at invoice stage, no action required.

Case Study: A Family in Nottinghamshire Stacks Multiple Grants

Background

A family of five in Worksop, Nottinghamshire, lived in a detached house with an EPC rating of E. They received Universal Credit and were keen to reduce their energy bills, which had reached £2,400 per year.

Project Overview

Through their energy supplier (British Gas), the family applied for ECO4 funding. An assessment confirmed they qualified. The package arranged under ECO4 covered a 3.5kWp solar installation plus loft and cavity wall insulation, at no cost to the family.

Implementation

An MCS-certified installer arranged by the ECO4 programme completed the solar installation in one day. The family also applied for the Smart Export Guarantee with Octopus Energy after installation.

Results

Annual electricity bills fell from approximately £1,600 to around £650. The solar panels generate an estimated 3,000 kWh per year, of which the family self-consumes around 2,200 kWh and exports approximately 800 kWh, earning around £80 per year from SEG. Combined energy cost reduction (electricity + reduced gas via better insulation): approximately £1,400 per year. Total cost to the family: £0.

Expert Insights From Our Solar Panel Installers About Grants

One of our senior solar panel installers with over fifteen years of UK experience advises:

“The grants picture has improved a lot in the past two years. Scotland in particular is miles ahead of England and Wales for homeowners who don’t qualify for ECO4, that Home Energy Scotland interest-free loan is an extraordinary deal that most people don’t know about. In England, the picture for non-low-income households is largely about maximising the 0% VAT saving and getting on the best SEG tariff. But the combination of those two things, plus bill savings, still produces excellent returns.”

Frequently Asked Questions

Summing Up

The UK’s grant and incentive landscape for solar panels in 2026 is a patchwork of schemes rather than one simple grant. The most universally available benefit is 0% VAT, followed by the Smart Export Guarantee. For Scottish homeowners, the Home Energy Scotland interest-free loan makes solar installation more accessible than anywhere else in the UK. For low-income households across Great Britain, ECO4 and the Warm Homes programmes can fund solar panels at no cost.

If you’d like help navigating which schemes apply to your situation, our MCS-certified installers can assess your property and identify the grants available to you as part of a free quote.

Updated April 2026