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AnswerHow much does a solar battery cost?
A home solar battery costs roughly £3,000–£6,000 installed depending on capacity (5–10 kWh). It stores daytime solar for evening use and can add backup power.
In more detail
Batteries improve how much of your own solar you use (self-consumption), which is where most savings come from once export rates are low. Payback is typically 8–12 years.
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2026 figures, based on Energy Saving Trust, Ofgem & gov.uk data · always confirm with a professional survey.