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At Green Central, we’re passionate about helping UK homeowners harness solar energy with tailored solar panel installations.
Figuring out how many solar panels you need for your home is straightforward when you consider your energy use, your home’s location, and your roof’s setup.
This easy-to-follow guide, crafted by our expert team, uses clear calculations and data to help you size your solar panel system for maximum savings and efficiency.
Home Size | Energy Needs (with Buffer) | Panels Needed (400W) | Roof Space Needed (2 m²/panel) |
---|---|---|---|
1–2 Bedroom | 2,250 kWh | 7–8 panels | 14–16 m² |
2–3 Bedroom | 3,375 kWh | 10–12 panels | 20–24 m² |
4–5 Bedroom | 5,375 kWh | 16–18 panels | 32–36 m² |
Look at your electricity bills to find your annual energy use in kilowatt-hours (kWh). Here’s what typical UK homes use:
To be safe, we add a 25% buffer for cloudy days or inefficiencies. For example, a 2–3 bedroom home using 2,700 kWh/year needs:
2,700 × 1.25 = 3,375 kWh/year.
A standard 400W solar panel produces around 300 kWh per year in the UK. This varies by location:
We only use the best solar panels in the UK to ensure all year round free energy for everyone!
Divide your buffered energy needs by the panel’s annual output. For a 2–3 bedroom home:
3,375 ÷ 300 = ~12 panels.
In sunnier southern England, you might need only 10 panels (3,375 ÷ 350). In northern Scotland, it could be 13 panels (3,375 ÷ 265).
At Green Central, we assess your roof to ensure it’s perfect for solar:
At Green Central, we’re MCS-accredited installers with years of experience across the UK. We make going solar simple:
At Green Central, we help you determine how many solar panels you need based on your energy use, roof, and location. A typical 2–3 bedroom UK home needs 10–12 panels, while larger homes may need 16–18.
Our high-efficiency panels and expert installation ensure you get the most power and savings. Ready to go solar? Contact Green Central for a complimentary solar panel quote or use our online solar calculator to begin planning your sustainable future today!
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