0% VAT on installations until 31 March 2027

How much does a home battery actually cost in 2026?

Real UK pricing for GivEnergy, Tesla, BYD, Sungrow and AlphaESS. No purchase grant exists here, so what you see is what you pay - with 0% VAT already included. Up to 3 quotes from local installers. 100% free.

See battery costs and tariff savings for your area

£4,500-£5,500
GivEnergy 9.5kWh installed
£9,500-£10,500
Tesla Powerwall 3 (13.5kWh)
0% VAT
Until 31 March 2027
12 years
GivEnergy warranty (longest here)

There is no battery purchase grant in the UK

No government scheme pays for your battery. What genuinely helps: 0% VAT on residential battery installations until 31 March 2027 (then 5%), typically worth £1,000-3,000 versus the standard 20% rate, and the tariff maths. Exported solar earns around 12p/kWh on a typical SEG flat rate while grid power costs around 25p/kWh (Ofgem cap average, changes quarterly), so a stored kWh you use at home is worth roughly double one exported. Households on EV or time-of-use tariffs can also charge the battery cheaply overnight and run the house off it at peak times.

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1

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2

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3

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