How much does a home battery cost in the UK in 2026?
A fully installed home battery in the UK typically costs between £3,500 and £6,000 for 5–20 kWh, depending on the brand, size and inverter.
Free savings calculatorLive tariff prices for your postcode, saving and monthly finance for every battery.Calculate →Typical installed prices
5–6 kWh: around £3,600–£3,800 installed.
10–12 kWh: around £4,300–£4,500.
14–20 kWh: around £4,650–£5,800.
These are our fixed online prices, including the battery, inverter and full MCS-certified installation.
Price per kWh
Bigger batteries cost less per kWh of storage. On our site, prices range from about £290 to £760 per kWh. See the Compare page for every system, sorted by price per kWh.
What should be included
A proper quote includes the hardware, MCS-certified installation, mounting and cabling, an energy meter, grid (DNO) notification, commissioning, app setup and handover. Watch out for 'battery only' prices that leave fitting out.
VAT
Home batteries in Great Britain are currently zero-rated for VAT when installed, which is already reflected in installed prices.
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