How Much for Solar Panels? UK 2026 Pricing
What would this actually cost at your home?
Installed prices vary widely by roof, access and region. Get an installed price for your property from MCS-certified installers.
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How much do solar panels cost in the UK?
Solar panels cost £5,000–£11,000 for most UK homes in 2026, depending on system size. A 4kW system (10 panels, most popular): £5,500–£8,000. A 6kW system (16 panels): £8,000–£11,000. All prices include 0% VAT, MCS certification, panels, inverter, mounting, wiring, scaffolding, and labour. Adding a 10kWh battery costs an extra £4,000–£6,000. These prices are the total installed cost — there are no hidden extras.
2026 Solar Panel Prices by System Size
Complete installed prices (0% VAT, MCS-certified):
| System | Panels | Typical Home | Price Range | Price per kWp |
|---|---|---|---|---|
| 2kW | 5 | 1-bed flat | £3,000–£4,500 | £1,500–£2,250 |
| 3kW | 8 | 2-bed house | £4,500–£6,500 | £1,500–£2,167 |
| 4kW | 10 | 3-bed house | £5,500–£8,000 | £1,375–£2,000 |
| 5kW | 13 | 4-bed house | £6,500–£9,500 | £1,300–£1,900 |
| 6kW | 16 | 5-bed house | £8,000–£11,000 | £1,333–£1,833 |
What is included in the price: - Solar panels (specified brand and model) - Inverter (string, hybrid, or micro-inverters) - Mounting system (rails, hooks, clamps) - DC and AC wiring, isolators, connectors - Scaffolding erection and removal - Labour (1–2 day installation) - DNO notification (G98 or G99) - MCS certification - Electrical Installation Certificate - System commissioning and monitoring setup
What is NOT included: - Solar battery (add £4,000–£6,000 for 10kWh) - EV charger (add £800–£1,100 for Zappi) - Bird proofing (add £300–£600 if needed) - Roof repairs (if needed before installation)
Source: MCS installer pricing survey Q1 2026.
What Affects the Price?
- System size — the biggest factor. Each additional panel adds £200–£350 to the total.
- Panel brand — budget panels (Trina, Longi): £200–£250 each. Premium (SunPower, REC): £300–£450 each.
- Inverter type — string inverter: £500–£1,000. Hybrid: £1,000–£2,000. Micro-inverters: £1,000–£2,800.
- Roof type — standard tile is cheapest. Slate adds 5–15%. Flat roof adds 10–15% (tilt frames needed).
- Scaffolding — included in most quotes. Complex access (narrow streets, party walls) may add £200–£400.
- Location — prices are broadly national. Very remote locations may have a small premium for travel.
- Installer — prices vary 15–25% between installers for the same specification. Get 3+ quotes.
Price Breakdown: Where Your Money Goes
What would this actually cost at your home?
Installed prices vary widely by roof, access and region. Get an installed price for your property from MCS-certified installers.
Get an Installed PriceTypical 4kW system cost breakdown (£6,750 average):
| Component | Cost | % of Total |
|---|---|---|
| Panels (10 × £250) | £2,500 | 37% |
| Inverter | £750 | 11% |
| Mounting system | £450 | 7% |
| Wiring & components | £300 | 4% |
| Scaffolding | £350 | 5% |
| Labour (2 days) | £1,600 | 24% |
| Overheads, certification, warranty | £800 | 12% |
| Total | £6,750 | 100% |
Key insight: Panels are only 37% of the total cost. Labour and overheads are 36%. This is why DIY rarely saves as much as people expect — and why getting multiple quotes matters (installer pricing varies more than panel pricing).
Source: MCS installer cost structure analysis.
How to Get the Best Price
- Get at least 3 quotes — prices vary 15–25% between installers for the same specification
- Install in winter — some installers offer 3–8% discounts during their quiet season (November–February)
- Choose mid-range panels — JA Solar, Trina, and Longi offer 95% of premium panel performance at 60–70% of the price
- Accept a standard string inverter if your roof is unshaded — no need for expensive micro-inverters on a simple south-facing roof
- Install a hybrid inverter (not a basic string) if you might ever want a battery — costs £200–£400 more now but saves £1,000+ later
- Ask about bulk deals if you have neighbours interested — some installers discount for multiple installations in one street
- Compare the TOTAL package, not just the headline price — the cheapest quote may have weaker panels, shorter warranties, or no Insurance-Backed Guarantee
Price History and Trend
UK solar panel price history (4kW system):
| Year | Average Cost | VAT Rate | Effective Cost |
|---|---|---|---|
| 2010 | £12,000 | 5% | £12,600 |
| 2015 | £6,500 | 5% | £6,825 |
| 2020 | £5,500 | 5% | £5,775 |
| 2022 | £6,000 | 0% | £6,000 |
| 2024 | £6,500 | 0% | £6,500 |
| 2026 | £6,750 | 0% | £6,750 |
Prices have stabilised since 2023. The dramatic 90% drop from 2010 to 2023 is over. Future drops will be incremental (1–3% per year at most) as manufacturing costs are near the floor for silicon technology.
Should you wait for cheaper? No. Every month you delay costs £50–£90 in lost savings. And if 0% VAT reverts to 5% or 20% after March 2027, prices will INCREASE by £275–£1,600.
Source: Solar Energy UK historical pricing; IRENA cost trends.
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What would this actually cost at your home?
Installed prices vary widely by roof, access and region. Get an installed price for your property from MCS-certified installers.
Get an Installed PriceFree, no obligation. Takes about 2 minutes.