Free Solar Panels in Wales – Can You Actually Get Them?

Yes, it is possible to get solar panels installed for free in Wales – but only if you meet specific eligibility criteria. The two schemes that fund free installations are the ECO4 scheme and the Warm Homes Nest programme. Both are designed for low-income and vulnerable households. If you do not qualify for either, there are still ways to reduce the cost significantly.

The Short Answer

Free solar panels in Wales are real, but they are not available to everyone. The funding is targeted at households most likely to be experiencing fuel poverty. You typically need to be receiving means-tested benefits or have a household income below £31,000, and your property needs a low EPC rating.

If you do qualify, the installation is genuinely free – there is no catch, no repayment, and no ongoing obligation. The funding comes from either energy suppliers (ECO4) or the Welsh Government (Nest), not from the installer.

Route 1: Free Solar Panels Through ECO4

The ECO4 scheme is a UK government programme that requires large energy suppliers to fund energy efficiency upgrades in eligible homes. It has been running since April 2022 and closes to new applicants on 31 December 2026.

ECO4 can cover 100% of the cost of solar panel installation, but there is an important condition: solar panels cannot be installed on their own. The scheme uses a “Whole House Approach,” meaning your home must also receive other energy efficiency measures such as insulation or a heating system upgrade alongside the solar panels.

Properties with electric heating systems (storage heaters, panel heaters or heat pumps) are the most likely to qualify for solar panels under ECO4.

ECO4 Eligibility

You may qualify if you meet one of these criteria:

• You receive a means-tested benefit (Universal Credit, Pension Credit, Housing Benefit, Child Tax Credits, Income Support, ESA or JSA)
• Your household income is below £31,000 (through the LA Flex route)
• You have a health condition worsened by living in a cold home
• You are in fuel debt or have been disconnected from a prepayment meter

Your property must also have an EPC rating of D or lower. Homes rated E, F or G qualify most easily. You need to be the homeowner or a private tenant with your landlord’s written consent.

Route 2: Free Solar Panels Through Warm Homes Nest

Nest is a Welsh Government scheme that has been running since 2011, spending over £251 million and helping more than 66,000 households with free energy efficiency improvements. Unlike ECO4, Nest is funded entirely by the Welsh Government rather than energy suppliers.

Nest provides free impartial energy advice to all households in Wales – you do not need to qualify for anything to get advice. If you are eligible for free home improvements, the scheme can fund solar panels, insulation, heating systems and more at no cost to you.

Nest Eligibility

To qualify for free home improvements through Nest, you must meet all three conditions:

• You own your home or rent privately with your landlord’s consent (local authority and housing association tenants are not eligible)
• You are on a low income (below 60% of the UK median) or receiving a means-tested benefit
• Your home has an EPC rating of E or less – or D or less if someone in your household has an eligible health condition

How Do the Two Free Schemes Compare?

Can Pensioners Get Free Solar Panels in Wales?

Yes, if they meet the eligibility criteria for either scheme. Pensioners receiving Pension Credit are automatically eligible for ECO4. Those on a low income who do not receive Pension Credit may still qualify through the LA Flex route or through Nest.

Pensioners are often among the most likely to qualify because they tend to live in older, less energy-efficient properties and are more vulnerable to the effects of living in a cold home. If you are a pensioner in Wales and unsure whether you qualify, calling Nest on 0808 808 2244 is the simplest first step.

What If You Do Not Qualify for Free Solar Panels?

Most households in Wales will not qualify for completely free solar panels. The schemes are deliberately targeted at those in the greatest need. But that does not mean solar is unaffordable. There are several ways to reduce the cost:

Green Homes Wales offers interest-free loans from £1,000 to £25,000 with up to 10 years to repay. Any homeowner in Wales can apply, regardless of income. Grant funding may also be available alongside the loan. Read our full guide to solar panel grants in Wales for more details.

0% VAT on solar panel installation is available to all households until March 2027. This saves approximately £1,500 on a typical system – the discount is applied automatically by your installer.

Smart Export Guarantee pays you for surplus electricity you export to the grid once your panels are installed. Combined with the savings on your electricity bills, a typical system pays for itself within 6 to 8 years.

Battery storage increases your savings further by storing surplus energy generated during the day for use in the evening, reducing how much electricity you need to buy from the grid.

Are Free Solar Panels Worth It?

If you qualify, absolutely. There is no financial downside to receiving a funded solar installation. The panels become part of your property, the electricity they generate is yours to use, and you can earn money through the Smart Export Guarantee for any surplus you export.

A typical solar PV system in Wales generates around 3,000 kWh of electricity per year – close to the average household consumption of 2,900 kWh. That translates to savings of £200 to £400 per year on your electricity bills, starting immediately.

Wales receives generous daylight hours throughout the year and most Welsh roofs have a suitable pitch for solar panels. South-facing roofs produce the best results, but south-east and south-west orientations also work well.