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Solar panel and battery installers in Swansea
Keiron holds the OVO partnership for South Wales, and Swansea sits in their SA postcode patch. Book a free 45 minute video design and you get your roof layout, your numbers and a written quote, with nobody setting foot in your home.
What solar actually does in Swansea
Roofs in Swansea come in every shape: terraces, semis and detached streets, often on the same road. That variety is what the remote design process is built for. Keiron's team looks at your actual roof on satellite and aerial imagery, live on a free 45 minute video call, and sizes the system to it. PVGIS puts Swansea at 1,023 kWh per kWp a year, so a full 14 panel (6.3 kWp) roof here generates around 6,445 kWh a year.
Yield and peak sun hours are PVGIS estimates for Swansea's own coordinates, not a regional average. Your free design refines them for your actual roof.
Get your free quote from Keiron
Two minutes. We confirm your video slot within one working day.
Worth reading before your Swansea design call
Straight answers from the OVO Solar and Battery team, sourced and dated.
How solar panels work, and why they work here
Panels run on daylight, not heat. What happens between your roof and your meter.
Read the guide →Single phase or three phase, and what it changes
One fuse or three. The check takes a minute and it sets your system size limit.
Read the guide →Adding a battery to solar you already have
Your panels stay untouched. The grid application is the part that catches people out.
Read the guide →What a gateway does, and when whole home backup is worth it
A full battery is no use in a power cut without a gateway. Here is what one does.
Read the guide →Why your tariff moves payback more than your kit does
Same install, three export rates, seven years of difference in payback.
Read the guide →The 20p export rate, and how it compares to standard SEG
4p or 20p for the same exported units. The conditions on each, in plain terms.
Read the guide →Solar installers near Swansea
We also cover Gowerton, Gorseinon, Clydach, Baglan, Neath and Port Talbot.
See Keiron's full South Wales coverage →Independent solar guidance for Swansea from Clearline Home Energy
Generation figures are PVGIS v5.2 estimates retrieved August 2026 for the coordinates of Swansea, assuming a south-facing roof at a 35 degree pitch with no significant shading, the same assumptions as the regional figures on this site. Population is the House of Commons Library settlement classification figure. Your free design accounts for your actual orientation, pitch and shading.