Adding a battery to a new solar installation adds £4,200 to £8,000 to the cost but can roughly double annual savings on a smart tariff. The right answer depends on your evening consumption pattern, your roof, and whether you have an EV.
renewables
Do I need a battery with my solar in 2026?
When adding a battery to a solar install makes sense, and when it does not. Payback periods, smart tariffs, and export rates explained.
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