What Size Solar System Do I Need?
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What size solar system do I need?
Size your solar system to match your electricity consumption: 1-2 bed (2,500-3,500 kWh/year) = 2-3kW. 3 bed (3,500-4,500 kWh/year) = 4kW. 4 bed (4,500-5,500 kWh/year) = 5kW. 5+ bed (5,500+ kWh/year) = 6-8kW. With EV: add 3-4kW. With heat pump: add 3-4kW. Rule of thumb: install the LARGEST system your roof and budget allow. Extra panels cost only £200-£350 each and pay back in 3-6 years.
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