Solar Panels
Cardiff
I live in Whitchurch, Cardiff — so the data on this site is literally Cardiff solar performance, not a national average. If you're weighing up solar panels in Cardiff, here's exactly what a real local system produces and saves.
Does solar work in Cardiff?
Cardiff gets around 1,550–1,600 hours of sunshine a year. It's not Spain, but it's more than enough — my south-facing array in CF14 has covered roughly half my electricity even through a Welsh winter. South and south-west facing roofs across Cardiff (Whitchurch, Llanishen, Cyncoed, Penarth, Radyr) are ideal.
The honest answer most installers won't give you: solar panels run on daylight, not direct sunshine. Even on an overcast Cardiff day they still produce 10–25% of peak. The real difference isn't the weather — it's pairing the panels with a battery and Octopus Agile so you store cheap overnight power and barely touch the expensive evening peak. That's how I've cut my grid import to 1,443 kWh a year.
I'm Luke — a real homeowner, not a sales company. I fitted solar + a Fox ESS battery on my own house, tracked every penny, and now I design systems and connect people across Cardiff and South Wales with The Solar House, the team who fitted mine. No pushy sales, just honest numbers.
Solar panels in Cardiff, done properly
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