Can "second life" EV batteries work as grid-scale energy storage?

Re:Can "second life" EV batteries work as grid-scale energy ... by SirFredman on Friday October 24, 2025 @05:22AM (#45692616)

And the nice thing is, prices will only get lower. They also have a 32.15kWh system for €3500,- which is insane.

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Re:Can "second life" EV batteries work as grid-scale energy ... by adwn on Friday October 24, 2025 @06:12AM (#45692950)

Unfortunately, almost all three-phase [1] on-grid inverters that are on the market, especially hybrid inverters, only support batteries with much higher voltages, like 150 V or even more.

[1] Three-phase wiring in homes seems to be very rare in the US, but is extremely common in Europe.

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Re:Can "second life" EV batteries work as grid-scale energy ... by archi42 on Saturday October 25, 2025 @06:52AM (#45702802)

The trick is to get an inverter with a 48V battery interface, that's not locked down to a specific manufacturer.

But you're right, most installers do high voltage batteries.

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