How Many Panels for Average Home?
Independently written
How many solar panels does a UK home need?
An average UK home needs 10 solar panels (4kW system) to match its annual electricity consumption of ~3,700 kWh. The calculation: average consumption (3,700 kWh) ÷ annual yield per kWp (~1,000 kWh) = 3.7 kWp needed. At 400W per panel: 3,700 ÷ 400 = 9.25 panels → round to 10. This is why 4kW (10 panels) is the UK's most popular residential system — it directly matches the average home.
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