Solar panels in Southampton
£4,040 to £12,220 installed, 1,700 hours of sun a year, and 5,089 installations already in the council area.
What a system costs in Southampton
3kWp
£4,040–£5,570
Saves up to £414 a year. Pays back in about 12 years.
4kWp (most common)
£6,320–£8,380
Saves up to £652 a year. Pays back in about 11 years.
6kWp
£8,900–£12,220
Saves up to £960 a year. Pays back in about 11 years.
Source: Home Energy Quotes Cost Index, costs modelled March 2026, savings at the October to December 2026 price cap. Prices are estimates and include installation and VAT. Actual costs may vary.
Southampton in numbers
Published statistics for the Southampton council area, not our estimates.
At the end of 2025 there were 5,089 solar PV installations in the Southampton council area, about 49.8 for every 1,000 households, with 20.9 MW of capacity between them. The count covers every size of installation, on homes and businesses. 47% of homes with an EPC in the Southampton council area are rated D to G, and the median energy score is 69, which is band C.
| Southampton council area | Figure | Source |
|---|---|---|
| Solar PV installations (all sizes) | 5,089 (49.8 per 1,000 households) | DESNZ, end of 2025 |
| Homes with an EPC rated D to G | 47% | ONS, EPCs lodged to March 2025 |
| Median EPC energy score | 69 (band C) | ONS, EPCs lodged to March 2025 |
| Households on mains gas heating only | 66.2% | Census 2021, ONS |
| Warm Homes: Local Grant, 2025 to 2028 | £34,807,254 to the consortium led by Portsmouth | DESNZ, list updated July 2026 |
| Electricity network operator | SSEN Distribution (Southern England) | NESO licence area boundaries |
Southampton is served by SSEN Distribution, the electricity network operator for Southern England. Solar panels have to be registered with the network operator. Your installer normally does this: smaller systems are notified after installation, and larger ones need approval before work starts.
These are published official statistics for the Southampton council area, which covers Southampton, not Home Energy Quotes estimates. Sources checked 6 October 2026.
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.
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
Questions about solar panels in Southampton
How much do solar panels cost in Southampton?
How many solar panel installations are there in Southampton?
Is there a grant for solar panels in Southampton?
Solar panels in Southampton qualify for 0% VAT until March 2027. In Great Britain, the Smart Export Guarantee pays for surplus electricity you export to the grid, at a rate each supplier sets.
How long is the payback period in Southampton?
Do I need planning permission in Southampton?
How do I find a good installer in Southampton?
Get quotes for your roof in Southampton
Up to three approved installers who cover Southampton may contact you. Free, no obligation.
Southampton on the map
Solar Panels in nearby towns
Last reviewed: . Costs are modelled estimates from the Home Energy Quotes Cost Index — see how we calculate them. Grant rates are checked against GOV.UK.