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Solar panel and battery installers in Cardiff

Keiron holds the OVO partnership for South & Mid Wales, and Cardiff 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.

Free design and quote, no obligation
No home visit until you have decided to go ahead
Can offer the 20p export rate when OVO fits solar and a battery
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Keiron Wells, your OVO Solar and Battery installer for South & Mid Wales
Keiron Wells South & Mid Wales
1,024kWh per kWp a year here (PVGIS)
2.80peak sun hours a day
6,451 kWha year from 14 panels (6.3 kWp)
367,426Population: House of Commons Library settlement classification
Local numbers

What solar actually does in Cardiff

Roofs in Cardiff 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 Cardiff at 1,024 kWh per kWp a year, so a full 14 panel (6.3 kWp) roof here generates around 6,451 kWh a year.

Yield and peak sun hours are PVGIS estimates for Cardiff's own coordinates, not a regional average. Your free design refines them for your actual roof.

Also nearby

Solar installers near Cardiff

We also cover Penarth, Dinas Powis, Caerphilly, Barry, Church Village and Rogerstone.

See Keiron's full South & Mid Wales coverage →
Free, no obligation

Get your free quote from Keiron

Two minutes. We confirm your video slot within one working day.

We can only install for homeowners, as the system is fixed to the property. Do carry on if you own it, or you are about to.
We are not able to install on flats and apartments because the roof is shared. Send your details anyway and we will let you know if that changes.
1 Where is your home?
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2 About you
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3 Your property
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4 What you are after
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5 When shall we call?
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We never call after 8pm.
Free, no obligation No home visit needed Your quote on the call

By submitting, you agree we can contact you about your enquiry. We pass your details to your local OVO installer so they can prepare your design. No cost, no obligation, and you can ask us to stop at any time. See our privacy notice.

Generation figures are PVGIS v5.2 estimates retrieved August 2026 for the coordinates of Cardiff, 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.