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Home battery cost: what it really costs in 2026
Storage with or without solar.
£3,500 – £7,700
A 5kWh home battery starts around £3,500 installed. 10kWh runs about £5,950 and 13kWh+ systems £7,700.
Price by spec
| Option | What it means | Typical price |
|---|---|---|
| 5kWh | Evening coverage for small homes | £3,500 |
| 10kWh | The typical family fit | £5,950 |
| 13kWh+ | High usage or off-peak arbitrage | £7,700+ |
What actually happens
- Usage reviewed — battery sized to your actual evenings
- Wall or floor position agreed (garage, utility)
- Battery and inverter mounted
- Wired to the consumer unit; CT clamp on the meter tail
- Configured: solar charging or cheap-rate overnight
- Commissioned, app set up, DNO notified
Popular choices
Charging on cheap overnight tariffsPairing with existing solarBackup circuits for outages
Regulations to know
- Installation is notifiable electrical work; the DNO must be notified (G98/G99)
- Batteries charged from the grid and discharged at peak need a smart tariff to make the maths work — no regulation, just arithmetic
Tips from the trade
- Without solar, a battery only pays back on a genuinely cheap overnight tariff — run the numbers first
- Size to your evening usage, not the biggest box you can afford
Plan this project properly
Get a region-adjusted estimate, track budget against real quotes, and find local tradespeople -- free to browse on Qome.
Start planning on QomePrices on this page are approximate, region-adjusted guide figures built from cross-checked UK cost data. They exist to inform you, not to bind anyone. Actual prices are whatever you and your tradesperson agree, and a difference between a Qome guide figure and a real quote is not a fault in either.