Solar System Costs & Savings
| System | Cost | Output/yr | Saving/yr | Payback |
|---|---|---|---|---|
| 3 kW (8 panels) | £5,000–£6,000 | 2,700 kWh | £400–£500 | 10–12 yrs |
| 4 kW (10 panels) | £6,500–£7,500 | 3,400 kWh | £500–£650 | 10–12 yrs |
| 5 kW (12 panels) | £7,500–£9,000 | 4,250 kWh | £600–£800 | 9–11 yrs |
| 6 kW (14 panels) | £8,500–£10,500 | 5,100 kWh | £750–£950 | 9–11 yrs |
| 4 kW + 5 kWh battery | £10,000–£12,000 | 3,400 kWh | £700–£900 | 10–13 yrs |
| 6 kW + 10 kWh battery | £13,000–£16,000 | 5,100 kWh | £1,000–£1,300 | 10–12 yrs |
All prices include 0% VAT and MCS certification. Prices as of 2026.
Frequently Asked Questions
How much does a solar power system cost in the UK?
A typical 4 kW solar system costs £6,500–£7,500 installed. With battery storage, costs range from £10,000–£16,000 depending on system size. All residential installations qualify for 0% VAT.
Is 0% finance available for solar?
Yes — Greentech Renewables offers 0% finance on solar panel installations subject to status, allowing you to spread the cost interest-free over 1–2 years.
Related Guides & Resources
Solar Panel Installation
MCS certified solar panel systems with 25-year warranties.
Battery Storage
Store solar energy for evening use and maximise savings.
Solar Panel Costs 2026
Up-to-date UK pricing for residential solar systems.
Solar Savings Guide
How much can you save with solar panels?
Government Grants
Check your eligibility for solar grants and funding.
0% Finance Options
Spread the cost with affordable monthly payments.
Instant Solar Estimate
Get a quick price estimate for your home.
Get a Free Quote
Book a free, no-obligation survey and quote.
