Top Renewable Energy Schemes in UK: Grants & Savings (2026)
The transition to renewable energy is no longer just an environmental choice—it's a financial one. Our 2026 guide explores the massive grants and schemes available to help you decarbonize your home.
As of 2026, the UK's commitment to the 'Net Zero' goal has resulted in some of the most generous renewable energy subsidies in Europe. For homeowners, this means significant upfront cost reductions for high-tech solar, heat pump, and insulation installations. Whether you're a self-funder or looking for government support, these schemes are the gateway to long-term energy independence.
1. The Boiler Upgrade Scheme (BUS): The £7,500 Opportunity
The Boiler Upgrade Scheme is currently the flagship grant for heating decarbonization.
If you are replacing an existing fossil fuel system (gas, oil, or LPG) with an Air Source Heat Pump, you can apply for a non-repayable £7,500 grant. In 2026, this has helped narrow the price gap between a new high-efficiency gas boiler and a sustainable heat pump to roughly £2,000 - £3,500.
Key UK Energy Grants & Schemes (2026)
| Scheme Name | Grant Amount | Best For | Link |
|---|---|---|---|
| Boiler Upgrade Scheme (BUS) | £7,500 | Switching from Gas to Heat Pumps | GOV.UK |
| ECO4 Scheme | Up to £20,000+ | Low-income households (Full retrofits) | Local Council / Energy Supplier |
| Smart Export Guarantee (SEG) | Per kWh rate | Solar panel owners with surplus energy | Energy Suppliers |
| Home Upgrade Grant (HUG 2) | Variable | Off-grid homes (No gas connection) | Local Authority |
2. ECO4: Solving Fuel Poverty through Deep Retrofits
The Energy Company Obligation (ECO4) is not just a grant—it's a comprehensive energy overhaul.
Targeted at households on qualifying benefits or those with low Energy Performance Certificate (EPC) ratings (D, E, F, G), ECO4 can cover the full cost of loft insulation, cavity wall insulation, and even solar panels or air source heat pumps. Many eligible households receive over £20,000 worth of upgrades at zero cost.
Zero VAT for Homeowners
Remember: Until March 2027, the UK has zero-rated VAT on the installation of energy-saving materials. This includes the equipment and the labor. This is a 20% discount applied automatically by your installer.
3. The Smart Export Guarantee (SEG): Getting Paid to Generate
If you already have solar panels (PV), the Smart Export Guarantee (SEG) is your ongoing income stream.
Suppliers like Octopus Energy, OVO, and Scottish Power compete for your surplus energy. In 2026, some "Fixed Outgoing" tariffs offer as high as 15p per kWh for electricity you send back to the grid. Combined with a home battery system, this can drastically reduce the "payback period" of your solar installation to less than 7 years.
4. HUG 2: Funding for Off-Grid Homes
The Home Upgrade Grant (Phase 2) specifically targets properties that are not connected to the mains gas grid. administered by local authorities, HUG 2 provides funding for energy-efficient heating and insulation in rural or older properties where heat pumps or electric solutions are the only viable options.
5. Next Steps: How to Apply
- Assess Your EPC: Check your current EPC rating online. This determines your eligibility for many schemes like ECO4.
- Find an MCS Installer: For BUS or SEG, your installer must be Microgeneration Certification Scheme (MCS) certified.
- Apply via Supplier: Most grants, especially ECO4, are managed directly by major energy suppliers through their "Energy Obligations" departments.
Plan your savings: Before investing, use our Solar Panel Cost Calculator to model your likely savings after a renewable upgrade.
Renewable Scheme FAQs
What is the Boiler Upgrade Scheme (BUS)?
The Boiler Upgrade Scheme (BUS) provides a £7,500 grant to UK property owners to help with the cost of installing low-carbon heating systems, specifically air source heat pumps and biomass boilers. This grant is paid directly to the MCS-certified installer, lowering your final bill.
Is there still VAT on solar panels in 2026?
No. The UK government currently maintains a 0% VAT rate on energy-saving materials, including solar panels and heat pumps, until 2027. This zero-rating can save self-funded homeowners over £1,000 on a typical installation.
What is the Smart Export Guarantee (SEG)?
SEG is a government-backed scheme that requires energy suppliers with over 150,000 customers to pay homeowners for the low-carbon electricity they export back to the grid from solar panels or wind turbines.
Solar Panel Cost Calculator
Estimate how much a solar and battery combo could reduce your monthly electricity bill based on current 2026 tariff structures.
Open Calculator Free