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Powervault

Powervault 4

British-made 8kWh battery with retrofit-friendly AC coupling.

From £5,800 installed

8.0
Great
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How it scores

Usable Capacity(25%)
7.5/10
Round-Trip Efficiency(25%)
8.0/10
Inverter Compatibility(20%)
8.5/10
Warranty & Cycle Life(20%)
8.5/10
Value for Money(10%)
7.5/10

Scores based on published manufacturer specifications and weighted criteria — not lab testing. Methodology.

Specifications

Weight kg
95
Usable kWh
8
Warranty years
10
Ac or dc coupled
AC
Inverter built in
Yes
Round trip eff %
95
Depth of discharge %
100

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