Solar Panels in Southampton — 2026 Guide
Based on a typical system size, average energy prices and a typical home — your figure will differ.
Is Southampton a Good Place for Solar Panels?
Southampton receives an average of 1700 hours of sunshine per year — above the UK average of 1,493 hours. Combined with South East’s energy prices tracking the UK average, solar panels installations here may offer good value (individual results will vary).
Southampton has a population of 253,000, and the area falls within the South East region. We recommend getting at least 3 quotes to compare prices.
Solar Panels Costs in Southampton (2026)
| System size | Typical cost | Could save (est.) | Payback (est.) |
|---|---|---|---|
| 3kWp | £4040–£5570 | up to £470/yr | ~11 yrs |
| 4kWp (most common) | £6320–£8380 | up to £740/yr | ~10 yrs |
| 6kWp | £8900–£12220 | up to £1090/yr | ~9 yrs |
Source: Green Reach Energy research, July 2026. Prices are estimates and include installation and VAT. Actual costs may vary.
Our installer quote-comparison service is launching soon. Register your interest and we’ll let you know when you can compare local installers.
Available Grants in Southampton
Solar panels in Southampton qualify for 0% VAT until March 2027. The Smart Export Guarantee pays 4p–15p/kWh for surplus electricity you export to the grid.
Register interest →
Find Installers in Southampton
We recommend getting at least 3 quotes from qualified installers before making a decision. Check reviews, ask for local references, and make sure warranties are clearly stated in writing.
What to check before hiring an installer in Southampton
- Qualifications — check the installer holds relevant qualifications and certifications for solar panels before signing any contract
- Local references — ask for completed jobs in Southampton or Hampshire
- Reviews — check online reviews before committing
- Warranty — product and workmanship warranties should be clearly stated in writing
- 3 quotes minimum — we recommend comparing at least three quotes to ensure you get a fair price
Frequently Asked Questions
How much do solar panels cost in Southampton?
Is there a grant for solar panels in Southampton?
Solar panels in Southampton qualify for 0% VAT until March 2027. The Smart Export Guarantee pays 4p–15p/kWh for surplus electricity you export to the grid.
How long is the payback period in Southampton?
Do I need planning permission in Southampton?
How do I find a good installer in Southampton?
Southampton on the map
