The ECO4 scheme (energy company obligation scheme) is a government led grant scheme funded by some of the biggest energy companies in the UK, designed to reduce carbon emissions and tackle fuel poverty,

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The scheme is currently available in Wales until March 2026. The aim is to help vulnerable homeowners and private tenants improve the fuel efficiency of their property and reduce their energy bills.

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Eligible properties will receive 100% free grant funding where a member of the household has a long term health condition or receives certain benefits or has a low household income.

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The scheme is 100% funded, and covers the cost of energy saving measures such as solar panels, a new heating system including an air source heat pump and wall and loft insulation.

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There are no hidden costs or catches, the scheme is 100% free, and the homeowner owns all of the equipment after installation.