Green Homes Wales Scheme: Interest-Free Solar Panel Funding in Wales

If you're considering solar panels in Wales, the Green Homes Wales scheme could help make your installation far more affordable.

The programme supports homeowners looking to improve their property’s energy efficiency by offering interest-free loans for renewable energy and home upgrades. This means technologies like solar panels, battery storage and heat pumps can be installed without paying the full cost upfront.

For many Welsh households, it provides a practical way to reduce energy bills while switching to clean energy.

What Is the Green Homes Wales Scheme?

The Green Homes Wales scheme is backed by the Welsh Government and delivered through the Development Bank of Wales. Its goal is to help homeowners improve the energy performance of their homes and reduce carbon emissions.

Through the scheme, homeowners may be able to access:

• Interest-free loans from £1,000 to £25,000

• Repayment terms up to 10 years

• A 6-month repayment holiday before repayments begin

This allows households to install renewable technologies now and spread the cost over manageable repayments.

What Home Improvements Are Supported?

The scheme supports a range of low-carbon technologies and energy-efficiency improvements, including:

Heating

• Air Source Heat Pump

• Ground /Water Source Heat Pump

• High heat retention storage heaters

• Biomass boiler or biomass stove

  
  

Generation

• Solar Thermal

• Solar PV

• Solar PV with solar diverter or Solar PVT

• Solar PV with battery storage

  
  

Fabric

• Solid Wall Insulation

• Flat roof or room in roof insulation (from 0mm)

• Loft insulation (virgin loft)

• Loft insulation (top-up)

• Cavity Wall Insulation

• High performance glazing

• Draught proofing

• Floor insulation

  
  

Controls

• Heating controls and smart home energy management systems

Some scheme exclusions include listed properties and battery storage only systems.

For listed buildings, some financial help may be available via Cadw https://cadw.gov.wales/advice-support/historic-assets/listed-buildings/historic-buildings-grant

Combining solar panels with energy efficiency improvements can significantly reduce a home’s energy consumption.

Why Solar Panels Are a Popular Upgrade

Solar panels are one of the most effective ways to reduce electricity bills while lowering your carbon footprint.

With the help of the Green Homes Wales interest-free loan, homeowners can install solar panels and benefit from:

• Lower electricity bills

• Protection against rising energy prices

• Renewable electricity generated at home

• Potential income through the Smart Export Guarantee

For many properties, solar panels provide one of the fastest returns among energy-saving upgrades.

Who Can Apply?

To qualify for the Green Homes Wales scheme, homeowners typically need to:

• Own a property located in Wales

• Live in the property as their main residence

• Apply for improvements to an existing home

Applications are subject to affordability checks as the scheme provides interest-free finance rather than grants.

How the Process Works

The programme follows a structured retrofit process to ensure upgrades are suitable for your home.

The typical steps include:

1. Initial enquiry and eligibility check

2. Independent energy advice

3. Home assessment by a Retrofit Coordinator

4. Recommendations for improvements

5. Quotes from qualified installers

6. Application for the interest-free loan

7. Installation of the upgrades

   
   

This approach ensures improvements meet recognised retrofit standards for energy efficiency.

Installing Solar Panels Through Green Homes Wales

For homeowners looking to install solar panels in Wales, the scheme can make the project far more accessible.

Solar systems funded through the programme may include:

• Roof-mounted solar PV systems

• Solar battery storage

• Combined energy-efficiency upgrades

These systems allow households to generate their own electricity and reduce reliance on grid power.

How We Can Help

As experienced solar installers working across Wales, we help homeowners take advantage of schemes like Green Homes Wales.

Our team can help you:

• Assess whether your property is suitable for solar

• Design the right solar and battery system

• Provide quotes required for scheme applications

• Install a high-quality solar system for your home

  
  

Start Saving with Solar

The Green Homes Wales scheme offers homeowners a practical way to invest in renewable energy without large upfront costs.

With interest-free loans and expert guidance, installing solar panels has never been more achievable.

If you're interested in solar panels through the Green Homes Wales scheme, contact our team today for a free solar consultation.