Solar Panel Grants and Funding in the UK: September 2025 Guide

Solar Panel Grants and Funding in the UK: September 2025 Guide

Switching to renewable energy is no longer just about protecting the planet—it’s also about reducing energy bills and making homes more sustainable. Thanks to solar panel grants and government funding in the UK, many households can now install solar panels at little or no upfront cost. At Reliant Energy Solutions, we help homeowners across the UK access these grants and install high-quality solar systems, insulation, and heating upgrades. If you want to check your eligibility today, apply for a free grant assessment with Reliant Energy Solutions now

Am I Eligible for Solar Panel Grants in the UK?

Eligibility for solar panel grants depends on a few key factors:

  • Household income – Most schemes focus on low-income or fuel-poor households. 
  • Energy Performance Certificate (EPC) rating – Homes with a rating of D or below are often prioritized. 
  • Benefits received – Universal Credit, Child Benefit, Pension Credit and other means-tested benefits may qualify you. 
  • Tenancy type – Both homeowners and private tenants (with landlord permission) can apply. 

Grants are designed to support households most in need, especially those with high energy bills, older properties, or inefficient heating systems.

What Solar Grants Are Available in September 2025?

Several funding schemes are currently active, each offering unique benefits for UK households.

ECO4 Scheme (Energy Company Obligation)

Running until March 2026, ECO4 is one of the UK’s largest energy-efficiency programs. It targets low-income households and can cover up to 100% of the cost of solar panel installations, alongside insulation and heating upgrades.

Through ECO4 LA Flex, local councils can extend eligibility to families who don’t receive benefits but still struggle with energy costs.

Where it applies: England, Scotland, Wales (not Northern Ireland).

 Local entities involved: British Gas, Octopus Energy, OVO, E.ON, Scottish Power (funding suppliers).

Solar Together (Group Buying Scheme)

Solar Together operates through participating local authorities across the UK. By joining a group of homeowners, you benefit from 30–40% lower installation costs thanks to bulk purchasing. This is a great option if you don’t meet ECO4 criteria but still want affordable solar panels.

Warm Homes Plan (Launched April 2025)

The Labor government’s £13.2 billion Warm Homes Plan is designed to tackle fuel poverty and cut carbon emissions. Eligible households can receive up to £30,000 in funding for home improvements like solar panels, heat pumps, and insulation.

Available across England.

Welsh Government Warm Homes Nest Scheme

For residents in Wales, the Nest Scheme provides free solar panels and insulation upgrades for low-income households or those with health conditions worsened by cold homes.

Covers homes with EPC rating of E or lower (or D with health conditions)

Scotland’s Home Energy Scotland Loan Scheme

While solar PV panels are no longer funded, solar thermal panels and hybrid PV/water systems are supported through interest-free loans of up to £5,000.

Available to Scottish homeowners and self-builders.

Alternative Solar Funding Options

Even if you don’t qualify for grants, there are several financial incentives available:

  • 0% VAT on solar panels (until March 2027) – saving households around £1,900 on average. 
  • Smart Export Guarantee (SEG) – earn 20–40p per kWh by selling excess solar electricity back to the grid. 
  • Solar loans and green mortgages – spread the cost of installation. 
  • Solar subscription plans – no upfront cost, fixed monthly payments. 

At Reliant Energy Solutions, we can advise on the best option for your property and budget.

How Much Can You Save with Solar Panels?

Solar panels allow households to cut bills by up to £1,000 a year on average. With additional SEG payments, savings can grow even higher.

Example savings (Sept 2025 averages):

  • 3-bedroom home with 4.5kW system – £786 annual savings. 
  • 4-bedroom home with 6kW system – £1,081 annual savings. 

This means most homes break even within 6–9 years and with grant funding, payback time is much shorter.

Find out how much you can save get a free solar panel today with Reliant Energy Solutions.

The Latest Solar Grant News (September 2025)

  • ECO4 Extension Consultation: The government is considering extending ECO4 by 6–9 months beyond March 2026 to ensure continuity before the Warm Homes Plan fully takes over. 
  • Warm Homes Obligation (planned successor to ECO4): Expected to include solar panels, batteries, and more robust consumer protections. 
  • Most new homes to have solar panels by 2027: Labor government plans require almost all new builds in England to be fitted with solar panels. 
  • £10m GB Energy funding: Local mayoral authorities have been awarded funds for installing solar panels on public buildings. 

Reliant Energy Solutions – Your Partner in Green Energy

We don’t just help households with solar panels. Our services also include:

  • Loft and cavity wall insulation – keep heat in and reduce bills. 
  • Boiler replacement and upgrades – efficient heating systems to save energy. 
  • Air source heat pumps – renewable heating for sustainable living. 
  • Smart heating controls – optimize energy usage and cut unnecessary costs. 

By combining grants, renewable technology, and expert installation, Reliant Energy Solutions helps households across the UK lower bills and improve energy efficiency.

FAQs about Solar Panel Grants UK (2025)

Can I really get free solar panels through grants?

Yes, under ECO4 and the Nest Scheme, eligible households can receive fully funded solar panel installations.

What if I don’t receive benefits—can I still apply?

Yes, through ECO4 LA Flex and Solar Together, you may still qualify based on income, health, or property conditions.

Do landlords qualify for solar panel grants?

Yes, but tenants must get landlord permission. Grants like ECO4 and the Warm Homes Plan can cover rental properties.

Will solar panels affect my property value?

Yes, homes with solar panels are more attractive to buyers and can command higher prices.

How do I apply for a grant?

You can apply through your energy supplier, local council, or directly with an approved installer like Reliant Energy Solutions.

Final Call to Action

The demand for solar panel grants is rising fast, and funding is limited. If you’re in England, Wales, or Scotland, now is the time to check if you qualify.

Apply for your free grant eligibility check with Reliant Energy Solutions today and take the first step towards lower bills and a greener home.

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