The Welsh Government launched the Green Homes Wales scheme in October 2024, offering interest-free loans of £1,000 to £25,000 for energy-saving home improvements1. The scheme is described as covering low-carbon heating systems and potentially solar installations1.
The loan range is the only figure reported for the scheme. The Welsh Government has not been reported as setting out which individual measures qualify, what repayment periods apply, or how applications are assessed. The scheme sits alongside the Welsh Government's Nest scheme, which provides free home energy improvements for eligible households, particularly those on low incomes1.
Why it matters for households
For a household in Wales, an interest-free loan of this size changes the arithmetic on work that would otherwise be paid for outright or borrowed for at commercial rates. Insulation, heating controls and low-carbon heating are the measures that reduce how much energy a home needs in the first place, which is the part of energy independence a household controls directly. Generation measures such as solar panels address the other side, the cost of the power a home draws in.
The wider UK picture is unsettled. The UK Government's Warm Homes Plan is described as including fully funded support for low-income families and low and zero-interest loans for homeowners regardless of income, to help homes across the UK install solar panels, heat pumps and other home energy efficiency improvements2. The UK Government has not said when that financial support will be available, only that it will give more detail later in the year2. The Energy Company Obligation scheme is due to close on 31 December 2026 under an announcement made in the 2025 Autumn Budget2.
For households comparing Welsh support with schemes elsewhere, the differences are material. In Scotland, homeowners can get a grant of up to £7,500 towards energy efficiency improvements such as insulation, plus an interest-free loan of up to £7,5002. In England, the Warm Homes Local Grant offers a package that may include home insulation, solar panels, a heat pump and heating controls, but only certain local authorities hold funding, and eligibility requires an Energy Performance Certificate of D or below and a household income under £36,000 a year2.
Two points of caution apply to any scheme of this kind. First, the Green Homes Wales loan is a loan, not a grant, so the money is repaid. Second, schemes attract imitation; the Energy Grant Scams and Fake Government Schemes page sets out how to check that an approach is genuine. Households looking at the wider landscape of Welsh support can compare it with Home Energy Grants in Wales and with the closed Arbed scheme, while the Interest-Free Loans and Finance Schemes for Home Energy Work page covers how loans of this type work. The relationship between funded work and a home's ability to withstand price shocks is set out in Grants, Schemes and Household Energy Independence.
What happens next
No application deadline, allocation total or closing date for Green Homes Wales has been reported. The UK Government has said it will give more detail on Warm Homes Plan financial support later in the year, without a date2. The Energy Company Obligation closes on 31 December 20262.
Sources2 cited
- Solar panel installation in Ceredigion, fuseenergy.com
- Financial support for home energy efficiency - Energy Saving Trust, energysavingtrust.org.uk