Solar Panel Grants and Incentives in Wales: What’s Available in 2025?

Solar power isn’t just an investment in your home—it’s an investment in your future. And with the right financial support, making the switch is more affordable than ever.

In 2025, several grants and incentives are available to help homeowners across Wales cut the upfront cost of installing solar panels and start saving on energy bills sooner. Here’s everything you need to know.

1. Eco Grant Scheme

The Eco Grant Scheme remains one of the most popular options for households looking to install solar panels or improve home energy efficiency.

Available to eligible homeowners and low-income households.
Helps cover the cost of solar panels, battery storage, and home insulation.
Supports the Welsh Government’s drive toward net zero emissions.

Electrical Innovation can assist you in checking your eligibility and guide you through the application process.

2. Smart Export Guarantee (SEG)

Even after installation, you can continue to save—or even earn money—with the Smart Export Guarantee.

Get paid for any excess solar energy you export back to the National Grid.
Rates vary between energy providers, so shopping around is key.
Helps shorten your payback period and increases the long-term return on your investment.

We’ll help you register your system and choose the best export tariff available.

3. Local Authority Green Energy Loans and Support

Some Welsh councils offer interest-free loans or additional grants for renewable energy installations.

Check with your local council to see what’s available in your area.
These schemes often complement national grants to further reduce upfront costs.

4. VAT Savings on Solar Installations

The UK Government has continued its zero-rated VAT on the installation of energy-saving materials, including solar panels and battery storage systems.