2 phase with PV and battery storage

[sbm74]

We've had to install a second single phase in order to be able to run  2x ASHP and 2x EVCP. We're also installing a 4kW PV array and are considering battery storage. We're getting a lot of conflicting advice about how this  would work in practice. Am I correct to assume that I'd need a separate inverter and battery for each phase or is there a way of being able to use one battery across both phases? 

 

Thanks for the advice as ever. Also posting this in the energy storage forum.

Edited November 9, 2023 by sbm74

[JohnMo]

Do everyone a favour and only post the same question once, not double dipping.

[sbm74]

Not trying to offend anyone, just didn't know which forum would be best given the question straddles PV and storage.