Updated: June 2026 • Energy Solutions NW
How Much Do Solar Panels Cost?
In 2026, a typical home solar system costs around £5,000 to £8,500 fully installed, with a common 4kW system usually £5,500 to £8,000. Adding a battery raises the total. Your price depends on system size, roof type and the equipment chosen.This guide covers solar panel costs in the UK — typical prices by system size, what affects them, battery costs and VAT — for North West homes.
Cost is the first question most people ask, and the honest answer is “it depends”. But there are clear typical ranges to work from.
If you’re still weighing up the decision, our pillar guide on whether solar panels are worth it in the UK looks at the bigger picture.
How Much Do Solar Panels Cost in the UK?
As a guide, most UK homes pay somewhere between £5,000 and £8,500 for a fully installed solar system in 2026.
The most common choice is a 4kW system, which typically lands around £5,500 to £8,000. Smaller systems cost less; larger ones cost more but generate more.
These are guide figures based on current industry averages — not a quote. The only way to know your price is a survey of your roof and energy use.
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Solar Panel Cost by System Size
System size is measured in kilowatt-peak (kWp). Larger systems cost more overall, but the price per kW usually falls a little as size increases.
| System size | Typical installed cost | Often suits |
|---|---|---|
| 3 kWp | £4,000–£5,500 | 1–2 bedroom homes |
| 4 kWp | £5,500–£8,000 | 2–3 bedroom homes (most common) |
| 5 kWp | £7,000–£9,500 | 3–4 bedroom homes |
| 6 kWp | £9,000–£11,500 | Larger homes or higher usage |
As a rough rule, expect somewhere around £1,700 to £2,100 per kW installed, with smaller systems sitting at the higher end of that range.
What Affects the Cost of Solar Panels?
Several things move the price up or down:
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- System size: more panels means a higher total cost but more generation.
- Panel type: premium high-efficiency panels cost more per kW than standard ones.
- Roof type & access: height, pitch, slate vs tile, and scaffolding needs all affect labour.
- Inverter and extras: hybrid inverters (battery-ready) and bird-proofing add to the total.
- Battery storage: optional, and covered below.
Location plays a part too — labour costs vary, and across the North West they tend to sit below the most expensive southern regions.
Cost of Solar Panels With a Battery
Adding battery storage lets you use more of your own solar in the evening rather than exporting it. It also adds to the upfront cost.
As a guide, a battery adds roughly £3,000 to £5,000, taking many solar-plus-battery installs to around £9,000 to £14,000 in total.
For a full breakdown, see our solar battery cost guide, or our battery storage guide for sizing and whether it’s worth it.
Do You Pay VAT on Solar Panels?
No — there’s currently 0% VAT on solar panel and battery installations for homes in Great Britain.
Good to know: the 0% VAT rate applies until 31 March 2027, after which it is currently set to return to 5%. The prices in this guide already include the 0% rate.
Are There Grants for Solar Panels?
There’s no general government grant that pays for solar panels in England in 2026. The old Feed-in Tariff closed to new applicants in 2019 and wasn’t replaced with a direct grant.
Schemes such as ECO4 exist to help eligible lower-income households with energy efficiency, but they focus on measures like insulation rather than solar panels directly. The 0% VAT rate is the main saving most homeowners benefit from.
How Much Can You Save, and What’s the Payback?
Savings depend on your energy usage, system size and electricity tariff. Most homeowners see a 50–80% reduction in their electricity bills, based on current energy prices.
Typical payback periods are around 6–10 years, depending on how much of your generation you use at home. You can also earn from electricity you export through the Smart Export Guarantee.
Export rates vary by supplier — we explain how this works in our Smart Export Guarantee guide. We’ll also calculate an estimate for your home as part of a free quote.
Why Choose a Professional Installer?
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- Accurate pricing: a survey gives you a real figure, not a guess.
- MCS certification: required to access the Smart Export Guarantee for exported electricity.
- Proper design: the system is sized around your roof and energy use.
- Grid compliance: the install is notified and tested to current UK standards.
What Happens When You Request a Quote?
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- Submit the form: tell us about your property and energy use.
- We review: our team looks at your roof and requirements.
- Free consultation: we discuss your options with no obligation.
- Tailored quote: you receive a price designed around your specific needs.
Related Guides
Frequently Asked Questions
How much does a 4kW solar system cost in the UK?
In 2026, a 4kW system — the most common choice for a 2–3 bedroom home — typically costs around £5,500 to £8,000 fully installed, including 0% VAT.
Is there VAT on solar panels?
No. There’s currently 0% VAT on home solar and battery installations in Great Britain, in place until 31 March 2027, when it is set to return to 5%.
How long do solar panels take to pay back?
Typical payback periods are around 6–10 years, depending on your usage, system size and tariff. We provide a personalised estimate as part of your free quote.
Last updated: June 2026
Disclaimer: This article is for informational purposes only. Energy savings estimates are based on industry averages and may vary depending on your property, energy usage, system size, and electricity tariff. We recommend obtaining a personalised quote for accurate savings estimates. Energy Solutions NW is part of the Blue Rock Energy network. MCS certified. NICEIC approved.
