The UK Government has launched the Warm Homes Loan Scheme, offering households access to government-backed, zero- and low-interest finance to help cover the upfront cost of installing low-carbon energy technologies. Announced under the Warm Homes Plan, the scheme aims to make home decarbonisation more accessible by allowing homeowners to spread the cost of improvements over time.
The scheme is available to eligible homeowners across England, Scotland, Wales and Northern Ireland. Supported technologies include solar photovoltaic (PV) panels, battery storage, air-source and ground-source heat pumps, heat network connections and other eligible renewable energy systems.
Loan limits vary by technology, reaching £15,000 for solar PV or battery storage, £20,000 for an air-to-water heat pump and £35,000 for a ground-source heat pump. The initial offer involves ten participating lenders, with some products offering interest-free finance and repayment terms of up to 30 years.
The Government estimates that installing a heat pump, solar panels and a battery could save a household up to £550 a year on energy bills, with a further £300 in potential annual savings when combined with a time-of-use electricity tariff. Actual savings will depend on the property, system design, energy use and finance costs.
The scheme can also be combined with eligible grant support, including the Boiler Upgrade Scheme, helping to reduce the upfront cost of installing low-carbon heating. Most eligible installations under the loan scheme must be undertaken by installers certified by the Microgeneration Certification Scheme (MCS), with an exception for heat network connections.
Implications for building services professionals
The scheme represents another step towards the Government’s ambition to improve the energy performance of UK homes, reduce household energy bills and accelerate the transition to low-carbon heating. For the building services sector, increased access to finance could support demand for heat pumps, renewable electricity generation, battery storage and integrated domestic energy systems.
However, access to finance is only one part of successful home decarbonisation. Achieving the expected energy and carbon savings will depend on appropriate system design, installation, commissioning and operation, alongside consideration of building fabric, ventilation and occupant comfort.
CIBSE members can explore the Institution’s Domestic Heat Pump Design and Installation Guide, developed in collaboration with the Heat Pump Association UK, and its heat pump resources and technical guidance.
The Warm Homes Loan Scheme forms part of a broader policy programme to upgrade homes, support low-income households and expand the market for clean heating and energy efficiency. CIBSE’s response to the wider Warm Homes Plan highlights the importance of a whole-home, performance-based approach to retrofit, supported by robust technical standards, appropriate skills and effective consumer protection.
Further information