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Solar panel payback in Wrexham
How fast does a 4 kWp domestic solar system pay back in Wrexham, what does it save in year 1, and what's the 25-year net benefit? This page uses the same assumptions as our full solar calculator — only the local irradiance (PVGIS annual yield for the LL11 outcode) changes.
What makes Wrexham different
North Wales's hillier terrain means orientation and shading matter more than in flat South Wales — do a shading survey first.
The figures above use a 4 kWp south-facing system, no battery, 3,500 kWh/yr household use, 27p/kWh import tariff, 15p/kWh SEG export and 4%/yr electricity inflation — the same defaults as the full UK solar calculator. Yield here (900 kWh/kWp) is drawn from PVGIS satellite data for the LL11 outcode. If you want to model a battery, a larger system, east/west panels or a different tariff, open the main solar calculator — it accepts your exact postcode and full custom inputs.
Model it for your exact postcode
The numbers above assume the outcode LL11. For your postcode — which adjusts irradiance slightly — use the calculator below.
Other cities in Wales
Solar yield varies more within a region than most people expect — coast vs inland, altitude, and overcast patterns all shift the numbers by a few percent.
Compare other cities
Pick any UK city to see its solar payback side-by-side with Wrexham.
Getting accurate quotes in Wrexham
The calculator gives a tight estimate, but three local factors decide your real payback: roof orientation (south ≥ east/west by 15–20%), shading from chimneys, trees and neighbours, and installer pricing — which varies wildly even within a single city. Get at least three MCS-certified quotes before committing.
If you're also looking at batteries, check which UK Smart Export Guarantee tariff will pay you the most — it changes the whole payback equation. And if you're considering a heat pump alongside solar, start with the heat pump vs gas boiler calculator and the £7,500 BUS grant check.