Commercial solar panel installers in Slough
Slough hosts the largest commercial trading estate in single ownership in Europe — the Slough Trading Estate — plus the UK's densest data-centre cluster (the M4 'data-centre alley'), all backed by the Heathrow supply chain. South-band irradiance combined with continuous heavy daytime demand makes Slough one of the most attractive commercial solar markets in the country.

Best-fit sectors in Slough
- Data centres & technology (M4 corridor)
- Warehousing & 3PL distribution (Slough Trading Estate)
- Airport supply chain & air cargo (Heathrow)
- Commercial offices & financial services
Solar yield
Slough sits in the South East irradiance band — roughly 1,000–1,080 kWh per kWp per year — the highest band of commercial solar yield in the UK.
Areas we cover near Slough
Slough Trading Estate · Langley · Burnham · Cippenham · Iver · Heathrow · Maidenhead · Windsor · Uxbridge
Postcodes: SL1, SL2, SL3, SL4, SL6
Funding for Slough businesses
Slough businesses typically combine the 100% Annual Investment Allowance with asset finance or a zero-CapEx PPA. Thames Valley Berkshire LEP and the wider Western Gateway programmes periodically support SME and commercial-property decarbonisation feasibility.See UK grants & funding guide →
Run the numbers for your Slough site
Get an indicative system size, savings and payback for a commercial site in Slough.Open the calculator →
Most relevant sectors for Slough businesses
Based on the dominant industries across Slough, these are the commercial solar specialisms most relevant locally — each links to a deeper guide.
Commercial solar in Slough — FAQs
Do you install commercial solar in Slough?
Yes — across Slough and the Thames Valley including the Slough Trading Estate, Langley, Burnham, Heathrow-adjacent estates and Maidenhead, with feasibility visits typically booked within 7–10 days.
How much does commercial solar cost in Slough?
Indicative pricing for Slough commercial sites sits at around £700–£900 per kWp installed above 100 kWp. South-band irradiance and continuous daytime load typically deliver 4–6 year payback.
Is solar a fit for Slough data centres?
Yes — data-centre rooftop solar typically offsets ancillary and cooling power rather than the IT load itself, but still delivers strong ROI given the continuous demand. Many M4-corridor data centres now combine rooftop solar with PPA-procured offsite renewables.
What size array fits on a Slough Trading Estate unit?
A typical 10,000–25,000 m² Slough Trading Estate unit can host 800 kWp–2 MWp of rooftop solar subject to roof orientation, structural capacity and the SSE grid connection at the estate substation.
Do Slough businesses need planning permission for rooftop solar?
Most commercial rooftop solar in Slough is permitted development. Listed buildings, conservation areas, the Heathrow safeguarding zone (glare assessment) and arrays above 1 MW typically need planning consent or assessment.
Which Thames Valley areas do you cover?
Slough, Maidenhead, Reading, Windsor, Uxbridge, Heathrow, High Wycombe and the wider M4/M25 commercial belt.
Slough is part of our South East commercial solar service area. See the South East regional guide →