Solar panels in Slough
£3,873 to £12,188 installed, 1,448 hours of sun a year, and 1,834 installations already in the council area.
What a system costs in Slough
3kWp
£3,873–£5,181
Saves up to £373 a year. Pays back in about 12 years.
4kWp (most common)
£6,180–£7,814
Saves up to £580 a year. Pays back in about 12 years.
6kWp
£9,025–£12,188
Saves up to £853 a year. Pays back in about 12 years.
Source: Home Energy Quotes Cost Index, costs modelled June 2026, savings at the October to December 2026 price cap. Prices are estimates and include installation and VAT. Actual costs may vary.
Slough in numbers
Published statistics for the Slough council area, not our estimates.
At the end of 2025 there were 1,834 solar PV installations in the Slough council area, about 35 for every 1,000 households, with 8.8 MW of capacity between them. The count covers every size of installation, on homes and businesses. 39% of homes with an EPC in the Slough council area are rated D to G, and the median energy score is 71, which is band C.
| Slough council area | Figure | Source |
|---|---|---|
| Solar PV installations (all sizes) | 1,834 (35 per 1,000 households) | DESNZ, end of 2025 |
| Homes with an EPC rated D to G | 39% | ONS, EPCs lodged to March 2025 |
| Median EPC energy score | 71 (band C) | ONS, EPCs lodged to March 2025 |
| Households on mains gas heating only | 72.4% | Census 2021, ONS |
| Warm Homes: Local Grant, 2025 to 2028 | £1,500,000 allocated to Slough | DESNZ, list updated July 2026 |
| Electricity network operator | SSEN Distribution (Southern England) | NESO licence area boundaries |
Slough 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 Slough council area, which covers Slough, not Home Energy Quotes estimates. Sources checked 6 October 2026.
Is Slough a good place for solar panels?
Slough receives an average of 1448 hours of sunshine per year — close to 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).
Slough has a population of 166,855, and the area falls within the South East region. We recommend getting at least 3 quotes to compare prices.
Find Installers in Slough
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 Slough
- Qualifications — check the installer holds relevant qualifications and certifications for solar panels before signing any contract
- Local references — ask for completed jobs in Slough or Berkshire
- 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 Slough
How much do solar panels cost in Slough?
How many solar panel installations are there in Slough?
Is there a grant for solar panels in Slough?
Solar panels in Slough 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 Slough?
Do I need planning permission in Slough?
How do I find a good installer in Slough?
Get quotes for your roof in Slough
Up to three approved installers who cover Slough may contact you. Free, no obligation.
Slough 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.