Store your solar. Use it on your terms.
A home battery lifts self-consumption from around 40% to over 70% — and unlocks cheap off-peak charging on tariffs like Octopus Go. More of every kilowatt you generate offsets the 28p you'd otherwise pay the grid.
Energy you keep is worth almost twice as much.
Without storage, solar you don't use immediately exports at the SEG rate — around 15p/kWh. With storage, that same energy offsets imports at about 28p/kWh, almost doubling its value.
40% → 70%+ on a typical 4-person household.
On Octopus Go or Agile, charge at 7p overnight and run the house through the day.
Whole-home or essential-circuit backup on supported units.
What a battery costs.
| Size | Best for | Typical |
|---|---|---|
| 5 kWh | Smaller homes, 2-person households | £3,500 – £4,500 |
| 9–10 kWh | Most 3–4-bed households | £4,500 – £6,000 |
| 13–15 kWh | EV owners, 5+ bed homes | £6,500 – £8,500 |
| Retrofit labour | Existing solar install | £800 – £1,200 |
0% VAT on batteries fitted to existing solar installations from 2024.
Retrofit or new install.
Added to a new solar install
Cleanest path. One hybrid inverter handles solar and battery, one scaffold, one day of electrical work.
Retrofit to an existing system
We assess your current inverter. If AC-coupled-ready, we add a battery and gateway. Otherwise we propose a hybrid swap.
Right-sized, not oversold.
We size batteries against your actual usage profile and tariff — so the system pays back, not the salesperson.
Speak to an engineer