7kW Solar System UK
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Get Free QuotesHow much does a 7kW solar system cost?
A 7kW solar system is an increasingly popular mid-to-large residential installation. Specs: 17-18 panels (at 400W each). Roof space: 30-32m². Cost: £7,500-£10,000 at 0% VAT. Annual generation: 6,300-7,350 kWh. Annual savings: £750-£1,200 (depending on self-consumption). Payback: 7-11 years. 25-year profit: £15,000-£25,000. Ideal for: 3-4 bed homes with above-average consumption, EV owners wanting solar charging, homes planning a heat pump. Battery recommendation: 10kWh (£4,000-£5,500) boosts self-consumption from 35-45% to 70-85%.
Frequently Asked Questions
Related: Home Heating Systems
Solar panels are most powerful when combined with an efficient heating system. Heat pumps use solar-generated electricity to heat your home at 300-400% efficiency — making them the ideal partner for solar.
Learn more about how air source heat pumps work alongside solar panels.
Heat pumps use electricity at 300-400% efficiency, making them ideal partners for solar.
Heat pump installation typically takes 2-3 days and is best planned alongside solar.
From our sister site Home Heat Pump Guide
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