Edition: June 2026 · CC-BY 4.0 · citable
The UK Solar Price Index
Benchmark — June 2026
A typical UK 4kW home system is £7,000 installed (£6,000–£8,000). Home batteries run £400–£700 per kWh. Commercial rooftop sits at £900–£1,200 per kWp.
The free, dated, citable benchmark of UK solar pricing — downloadable below, no email, no licence fee, no installer pays to influence a figure.
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Residential systems — installed price by size
Typical installed UK prices for panels-only systems (inverter, mounting, scaffolding, labour and MCS certification included; 0% VAT applied; battery excluded):
| System | Low | Typical | High |
|---|---|---|---|
| 3kW | £5,000 | £5,500 | £6,500 |
| 4kW | £6,000 | £7,000 | £8,000 |
| 5kW | £7,500 | £8,500 | £9,800 |
| 6kW | £9,000 | £10,000 | £11,500 |
| 8kW | £11,000 | £12,500 | £14,500 |
| 10kW | £13,000 | £15,000 | £17,000 |
| System | Low | Typical | High | Per kW |
|---|---|---|---|---|
| 3kW (7 panels) | £5,000 | £5,500 | £6,500 | £1,833/kW |
| 4kW (10 panels) | £6,000 | £7,000 | £8,000 | £1,750/kW |
| 5kW (12 panels) | £7,500 | £8,500 | £9,800 | £1,700/kW |
| 6kW (14 panels) | £9,000 | £10,000 | £11,500 | £1,667/kW |
| 8kW (18 panels) | £11,000 | £12,500 | £14,500 | £1,563/kW |
| 10kW (23 panels) | £13,000 | £15,000 | £17,000 | £1,500/kW |
Home batteries — installed price by brand
| Battery | Low | High | Per kWh |
|---|---|---|---|
| GivEnergy 9.5kWh | £4,500 | £6,000 | £553/kWh |
| Fox ESS ECS 10.4kWh | £4,800 | £6,200 | £529/kWh |
| Tesla Powerwall 3 (13.5kWh) | £7,400 | £10,500 | £663/kWh |
| Sunsynk 10.65kWh | £4,900 | £6,400 | £531/kWh |
| Pylontech 10.65kWh | £4,200 | £5,600 | £460/kWh |
Methodology
The index spine is public data — DESNZ solar cost statistics, MCS installation records and Ofgem price data — cross-checked against aggregated UK installer pricing from the regional installers we track. Figures are typical installed prices, not quotes: your roof, access and kit choices move the number. Each edition is dated, the CSV is versioned, and previous editions are never silently rewritten. No installer pays to appear or to influence a figure — the same independence policy as everything else we publish.
For the full context behind these numbers see the cost of solar panels in the UK, run your own scenario in the free calculator, or dig into battery storage costs and commercial pricing.
Citing the index
Journalists, researchers and installers are welcome to reuse these figures under CC-BY 4.0: credit "The Cost of Solar — UK Solar Price Index (June 2026)" and link this page. If you need a comment on UK solar pricing for a story, the contact route is on our about page.
Frequently asked questions
What is the UK Solar Price Index?
A free, versioned benchmark of typical UK installed solar and battery prices, published by The Cost of Solar. Each edition is dated, downloadable as CSV under a CC-BY licence, and compiled from public datasets and aggregated installer pricing — with no installer paying to influence a figure.
How often is the index updated?
Editions are refreshed on a rolling monthly-to-quarterly cycle as underlying prices move. Every figure carries the edition date, and past editions are never silently rewritten.
Can I cite or republish these figures?
Yes — the index is published under a Creative Commons Attribution (CC-BY 4.0) licence. Cite "The Cost of Solar — UK Solar Price Index" with the edition date and a link to this page.
Where do the numbers come from?
The spine is public data (DESNZ solar cost statistics, MCS installation records, Ofgem price data) cross-checked against aggregated UK installer pricing. Figures are typical installed prices at 0% VAT, not quotes.