The UK battery storage market has matured rapidly. Four manufacturers now dominate the residential sector: GivEnergy, Tesla, Sungrow, and BYD. Each has distinct strengths depending on your inverter compatibility, budget, and how you intend to use the battery — solar self-consumption, time-of-use arbitrage, or backup power.
GivEnergy AIO (All-in-One)
GivEnergy's AIO series integrates a hybrid inverter and battery into a single wall-mounted unit, making it a popular choice among UK installers for its clean installation and strong local support network.
Available capacities: 2.6 kWh, 5.2 kWh, 9.5 kWh (AIO 9.5)
Key specifications (AIO 9.5):
- Usable capacity: 9.5 kWh
- Peak discharge: 3.6 kW (single phase)
- Cycle life: 6,000 cycles to 80% capacity
- Warranty: 10 years
- Chemistry: LFP (lithium iron phosphate)
- Approximate installed cost: £6,500–£8,000
GivEnergy's cloud platform integrates directly with Octopus Energy, enabling automatic scheduling of cheap-rate charging. The UK-based support team is a genuine differentiator for installers.
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Tesla Powerwall 3
The Powerwall 3 launched in the UK in 2025 and represents Tesla's most capable residential unit to date. Its key advantage is a built-in solar inverter, meaning it can replace a standalone inverter and battery combination.
Key specifications:
- Usable capacity: 13.5 kWh
- Peak power output: 11.5 kW (continuous)
- Solar input: up to 20 kW DC (6 MPPT inputs)
- Cycle life: Not publicly stated; warranty covers 70% capacity at 10 years
- Warranty: 10 years / unlimited cycles
- Approximate installed cost: £10,500–£13,000
The Powerwall 3 is best suited to new-build solar installations or full system replacements where the integrated inverter simplifies wiring. Retrofit onto an existing third-party inverter setup is not straightforward.
Sungrow SBR (High Voltage)
Sungrow's SBR series is a modular high-voltage battery designed to pair with Sungrow's SH hybrid inverters — one of the most widely installed inverter brands in the UK through 2024–2026.
Modular capacity: 3.2 kWh per module; expandable from 9.6 kWh to 25.6 kWh
Key specifications (SBR096, 9.6 kWh):
- Peak discharge: 5 kW (paired with SH5.0RS)
- Cycle life: 6,000 cycles to 80%
- Warranty: 10 years
- Chemistry: LFP
- Approximate installed cost: £5,800–£7,500 (excluding inverter)
Modularity is the Sungrow SBR's standout feature — you can add capacity in 3.2 kWh increments as your needs grow, rather than replacing the whole unit.
BYD Battery-Box Premium HVS
BYD is the world's largest battery manufacturer and brings scale-driven cost advantages to the UK market. The HVS range is inverter-agnostic, pairing with SolarEdge, Fronius, Victron, and Sungrow inverters.
Available capacities: 5.1 kWh to 22.1 kWh (in 2.56 kWh increments)
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Key specifications (HVS 10.2):
- Usable capacity: 10.2 kWh
- Peak discharge: 5.12 kW
- Cycle life: 6,000 cycles to 80%
- Warranty: 10 years
- Chemistry: LFP
- Approximate installed cost: £6,200–£8,000 (excluding inverter)
Head-to-Head Comparison
| Feature | GivEnergy AIO 9.5 | Tesla Powerwall 3 | Sungrow SBR096 | BYD HVS 10.2 |
|---|---|---|---|---|
| Capacity (usable) | 9.5 kWh | 13.5 kWh | 9.6 kWh | 10.2 kWh |
| Built-in inverter | Yes | Yes | No | No |
| Modular expansion | No | Yes (stack) | Yes | Yes |
| Chemistry | LFP | NMC | LFP | LFP |
| Warranty | 10 years | 10 years | 10 years | 10 years |
| Approx. installed cost | £7,000 | £12,000 | £6,500 | £7,000 |
| Inverter compatibility | GivEnergy only | Tesla/third-party DC | Sungrow SH | Multi-brand |
