Solar Panel Installation Cost UK 2026

Solar PV installation in 2026 averages £8,500 for a 4 kW system on a 3-bed UK home. Larger systems (5–6 kW) £8,000–£12,000. Batteries add £3,500–£5,500.

Quick answer

Typical UK price range: £5,500–£14,000. Typical time: 1–3 days.

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System size 3 kW (~7 panels) 4 kW (~10 panels) 5 kW (~12 panels) 6 kW (~14 panels) 8 kW (~18 panels)

Region London South East South West Midlands North of England Scotland Wales Northern Ireland

Specification level Basic / standard Mid-range Premium / high-end

Extras

5 kWh battery £3,500–£5,000 10 kWh battery £5,500–£8,500 EV charger integration £400–£800 Bird-proofing £350–£700 Generation meter £150–£300

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Estimate only. Prices reflect 2026 UK market data — get quotes from local tradespeople for accurate pricing.

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Budget Under £5,000 £5,000 – £15,000 £15,000 – £30,000 £30,000 – £60,000 £60,000+ Not sure

Timeline As soon as possible 1 – 3 months 3 – 6 months 6+ months Just researching

Project details

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Key points

• 4 kW system: £6,500–£8,800
• 5 kW system: £7,800–£10,500
• 6 kW system: £8,900–£12,000
• 5 kWh battery: £3,500–£5,000 extra

Cost breakdown

Item	Low	High
Panels (4 kW = ~10 panels)	£3,500	£5,500
Inverter	£800	£2,500
Mounting + scaffolding	£600	£1,500
Labour + commissioning	£800	£2,000
Battery (5 kWh)	£3,500	£5,000

Cost by UK region

Region	Typical cost
London	£13,162
South East	£12,187
South West	£10,725
Midlands	£9,750
North England	£8,775
Scotland	£9,262
Wales	£8,775

How to save money

• Choose MCS-certified installer for SEG payments
• Get 3 quotes — prices vary 20-30 %
• Don't over-size — sized to daytime use is usually best

How to find a trusted tradesperson

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• Checkatrade
• MyBuilder
• Bark

FAQs

What's the payback time for solar?

6–9 years for a 4 kW system with battery, based on 2026 electricity prices and SEG export tariffs.

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Disclaimer: Prices are guide ranges based on 2026 UK market data. Get quotes from local tradespeople for accurate pricing.