Commercial solar panel installers in Cardiff
Cardiff is the commercial capital of Wales, with a strong mix of city-centre offices, Cardiff Bay's media and tech estate, and a deep South Wales industrial belt along the M4. Welsh-specific funding via Business Wales and the Development Bank of Wales, combined with solid South Wales irradiance, makes Cardiff one of the most attractive commercial solar markets in the UK.
Best-fit sectors in Cardiff
- Distribution & logistics (M4 corridor)
- Advanced manufacturing & engineering
- Commercial offices, media & tech (Cardiff Bay)
- Public sector, healthcare & university estates
Solar yield
Cardiff sits in the Wales irradiance band — roughly 950–1,000 kWh per kWp per year — strong UK commercial solar yield, especially on large flat or shallow-pitch roofs.
Areas we cover near Cardiff
Cardiff Bay · Penarth · Barry · Caerphilly · Newport · Bridgend · Pontypridd · Llantrisant · Treforest
Postcodes: CF10, CF11, CF14, CF23, CF24, CF3, CF5, CF63, CF72, CF83
Funding for Cardiff businesses
Cardiff businesses can layer the UK-wide 100% Annual Investment Allowance with Welsh-specific support — Business Wales advisory services, Development Bank of Wales finance and periodic Welsh Government decarbonisation grants — often producing stronger funding outcomes than in England.See UK grants & funding guide →
Run the numbers for your Cardiff site
Get an indicative system size, savings and payback for a commercial site in Cardiff.Open the calculator →
Most relevant sectors for Cardiff businesses
Based on the dominant industries across Cardiff, these are the commercial solar specialisms most relevant locally — each links to a deeper guide.
Warehouses & Logistics in Cardiff
Large flat roofs, high daytime demand — the strongest commercial solar fit.
See the warehouses & logistics guide →Factories & Manufacturing in Cardiff
Heavy daytime load and process heat — fast payback on industrial roofs.
See the factories & manufacturing guide →Commercial Landlords in Cardiff
MEES/EPC uplift, green-lease premiums and tenant resale of power.
See the commercial landlords guide →Commercial solar in Cardiff — FAQs
Do you install commercial solar in Cardiff?
Yes — across Cardiff, Newport, Bridgend, Barry, Pontypridd and the wider South Wales M4 commercial belt.
What Welsh-specific funding can Cardiff businesses use?
Cardiff businesses can access Business Wales advisory support, Development Bank of Wales asset finance and periodic Welsh Government decarbonisation grants, combined with UK-wide AIA tax relief.
Is South Wales good for commercial solar yield?
Yes — South Wales receives around 950–1,000 kWh per kWp per year, close to Midlands yields and well above the Scottish average.
Do you cover Cardiff Bay offices and Treforest industrial?
Yes — both Cardiff Bay's offices/media estate and the Treforest, Nantgarw and Llantrisant industrial estates are within our standard Wales service area.
Cardiff is part of our Wales commercial solar service area. See the Wales regional guide →