Energy efficiency and renewable energy grants available to Welsh households — Welsh Government schemes and UK-wide programmes.
Welsh Government
Welsh Government's flagship energy efficiency scheme providing free improvements for eligible households.
Area-based energy efficiency programme targeting communities across Wales with external wall insulation and renewables.
Interest-free loans for energy efficiency and renewable energy improvements for Welsh homeowners.
UK-wide
Free energy efficiency improvements funded by major energy companies, available across Wales.
Government grants for air source heat pumps and biomass boilers, available in Wales until March 2026.
Welsh councils can refer vulnerable households for additional grant funding (ECO Flex and the Warm Homes: Local Grant) through flexible eligibility.
Find out which schemes you might qualify for based on your circumstances.
North Wales
Enhanced support for rural communities in Gwynedd, Anglesey, Conwy, and Denbighshire with off-gas grid priorities.
All Welsh Government schemes offer full Welsh language support and bilingual documentation.
Special provisions for holiday accommodation and tourism businesses in coastal areas.
South Wales
Targeted investment in former mining communities with enhanced Nest scheme provision and Arbed programmes.
Large-scale district heating projects in Cardiff, Swansea, and Newport with government backing.
Support for businesses and communities near major industrial sites transitioning to clean energy.
Use the Welsh eligibility checker or contact Nest directly on 0808 808 2244 for Welsh schemes.
Welsh Government schemes often provide better coverage than UK-wide programmes for eligible households.
Qualified assessors will survey your property and recommend the most suitable improvements.
Certified installers complete the work at no cost to eligible households under grant schemes.
Welsh Government
Phone: 0300 123 1234
Free energy advice service
UK schemes
250 homes received free external wall insulation and solar panels through combined Nest and Arbed funding, reducing energy bills by £800/year on average.
120 social housing properties upgraded with air source heat pumps using combined ECO4 and Welsh Government funding, achieving 75% carbon reduction.
Off-grid communities received heat pumps and battery storage systems, replacing expensive oil heating with renewable alternatives saving £1,200+ annually.
Up to £15,000
Free energy efficiency measures for eligible households.
Learn more →£7,500 grant
Heat pump grants for installations in England and Wales.
Learn more →Scottish schemes
Warmer Homes Scotland, Home Energy Scotland, and Scottish-specific schemes.
Learn more →This information covers both Welsh Government schemes and UK-wide programmes available in Wales. Eligibility criteria can vary between schemes and may change. Always verify current requirements with official sources before applying. Welsh Government schemes are managed separately from UK programmes and may have different application processes.