Solar panel savings estimator
Set a system size and your roof details to see an indicative estimate of annual generation, bill savings, export income and payback, then get free quotes.
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4 kW
System size · ≈ 8–9 panels · Average 3-bed home
2 kW10 kW
3,800 kWh
Annual generation
£737
Est. annual saving
£5,000–£6,200
Indicative cost
~7.6 yrs
Payback
Indicative estimate only, based on a typical UK installation (≈950 kWh per kWp, ~40% self-consumption, 0% VAT). Your actual generation, savings and payback depend on your roof, location, usage, tariff and export rate. A professional survey is required before any quote.