⚡ Key Takeaways
- ECO4 provides fully funded solar panels for households on qualifying benefits
- The Warm Homes Plan extends solar funding for low-income households in 2026
- 0% VAT on all residential solar installations — available to everyone until March 2027
- Free systems are typically worth £5,000–£8,000 (4kW system)
- Even without benefits, 0% VAT saves £700–£1,400 on any solar purchase
What is the UK Solar Panel Scheme 2026?
There isn't one single "solar panel scheme" in the UK — there are actually three overlapping programmes that can help you get solar panels for free or at a significant discount in 2026. Here's what's available:
ECO4 Solar Strand
The Energy Company Obligation (ECO4) is a government-mandated programme that requires large energy suppliers to fund energy efficiency improvements in low-income households. Solar PV panels are one of the qualifying measures. If you're eligible, ECO4 covers the full cost of supply, installation, inverter, and wiring — you pay nothing. ECO4 has been extended to 31 December 2026.
Warm Homes Plan Solar
The Warm Homes Plan is the government's broader strategy for upgrading Britain's housing stock. It builds on ECO4 and the Great British Insulation Scheme, with solar PV included as a key measure for reducing fuel bills in low-income homes. Funding is delivered through local authorities and energy companies, targeting households most at risk of fuel poverty.
0% VAT on All Solar Panels
Since April 2022, every residential solar panel installation in the UK carries 0% VAT instead of the standard 20%. This isn't means-tested — everyone qualifies, regardless of income. On a typical 4kW system costing £6,000–£7,000, the VAT saving is worth £700–£1,400. This zero rate is confirmed until at least 31 March 2027.
Who Qualifies for Free Solar Panels?
To receive solar panels completely free through ECO4, you need to meet two requirements:
1. Receive a qualifying benefit
- Universal Credit
- Employment and Support Allowance (ESA) — income-related
- Jobseeker's Allowance (JSA) — income-based
- Personal Independence Payment (PIP)
- Pension Credit
- Child Benefit (household income below £20,000)
- Income Support
- Housing Benefit
- Child Tax Credit
- Working Tax Credit
2. Your home must have an EPC rating of D or below
Your property needs an Energy Performance Certificate (EPC) rating of D, E, F, or G. If you don't know your EPC rating, you can check it for free on the government's EPC register. Most older UK homes (pre-2000) will typically have a D rating or lower.
Property requirements
- Owner-occupied: You own and live in the property
- Private tenants: Eligible with written landlord permission
- Social housing: The housing association or council can apply on your behalf
- Suitable roof: ideally south, south-east, or south-west facing with minimal shading
Don't receive benefits? Some local councils offer solar funding through the LA Flex pathway for households in fuel poverty, even without qualifying benefits. Contact your council's energy or housing team to check.
What Do You Get?
The value of what you receive depends on which scheme you qualify for. Here's a clear comparison:
| Scheme | What You Get | Value | Who Qualifies |
|---|---|---|---|
| ECO4 (Free Solar) | Full 4kW solar system, inverter, installation — all free | £5,000–£8,000 | On qualifying benefits + EPC D or below |
| 0% VAT (Everyone) | VAT saving on any solar purchase | £700–£1,400 saved | All UK homeowners — no means test |
| SEG Payments | Ongoing income from surplus electricity | £60–£300/year | Anyone with solar + smart meter |
A typical free ECO4 system includes 10–12 solar panels (approximately 4kW capacity), a string inverter, all mounting hardware, and professional installation by MCS-certified engineers. The panels belong to you permanently and come with a 25-year performance warranty.
If you're not on benefits, you'll pay for your solar panels but benefit from 0% VAT — saving between £700 and £1,400 compared to the old 20% rate. Once installed, everyone can earn through the Smart Export Guarantee by selling surplus electricity back to the grid.
How to Apply
The application process is straightforward and typically takes 4–8 weeks from start to installation:
Step 1: Check your eligibility
Use our free eligibility checker to confirm whether you qualify for free solar through ECO4. You'll need your postcode, benefit details, and approximate household income. The check takes under 2 minutes.
Check Your Eligibility Free →Step 2: Get a free home survey
If you're eligible, a qualified surveyor visits your home (free of charge) to assess your roof's suitability. They check orientation, pitch angle, shading, and structural condition. South-facing roofs are ideal, but east and west-facing roofs also work well with slightly reduced output (around 15–20% less).
Step 3: Installation arranged
Once approved, a TrustMark-registered and MCS-certified installer is assigned. Installation typically takes 1–2 days with minimal disruption. The panels connect to your existing electrical system, and you'll receive all documentation needed to register for the Smart Export Guarantee.
0% VAT on Solar Panels Explained
Since April 2022, all residential solar panel installations in the UK are zero-rated for VAT. Previously, solar panels attracted the standard 20% VAT rate, which added £1,000–£2,000 to the cost of a typical system.
Here's what the 0% VAT saving looks like in practice:
| System Size | Cost (at 0% VAT) | VAT You Save |
|---|---|---|
| 3kW (8 panels) | £5,000–£6,000 | £700–£1,000 |
| 4kW (10–12 panels) | £6,000–£7,500 | £1,000–£1,250 |
| 6kW (15–18 panels) | £8,000–£10,000 | £1,300–£1,700 |
The 0% rate also applies to battery storage systems, heat pumps, and insulation materials installed alongside solar panels. There are no income requirements — this is a universal benefit for all UK homeowners.
The zero rate is currently legislated until 31 March 2027, after which the reduced 5% rate will apply. If you're considering solar, installing before this deadline maximises your savings.