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Solar panel and battery installers in Penarth
Keiron holds the OVO partnership for South Wales, and Penarth sits in their CF 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 Penarth
PVGIS puts Penarth at 1,055 kWh per kWp a year, which is 2.89 peak sun hours a day. A 14 panel (6.3 kWp) system here generates around 6,647 kWh a year, and on a typical system with battery roughly 55% of that is exported, worth about £735 a year at OVO's 20p export rate. Keiron's team sizes it to how you actually use energy, on a free 45 minute video call.
Yield and peak sun hours are PVGIS estimates for Penarth'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 Penarth 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 →What size battery does your home actually need?
Size it to your evenings, not your roof. One number off your bill gives the answer.
Read the guide →AC versus DC coupled batteries, explained simply
One suits a retrofit, one suits a fresh install. The plain English difference.
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 Penarth
We also cover Dinas Powis, Barry, Cardiff, Caerphilly, Church Village and Rogerstone.
See Keiron's full South Wales coverage →Independent solar guidance for Penarth from Clearline Home Energy
Generation figures are PVGIS v5.2 estimates retrieved August 2026 for the coordinates of Penarth, 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. Export income assumes roughly 55% of generation is exported on a typical system with battery.