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diy solar

Switching between phases / Combining Grid-tied inverters

iRomeo

New Member
Joined
Oct 13, 2022
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19
Hi folks!

I have a weird situation :)

House is ~30 meters from garage. House has 1 system, garage will have 2, all of them will be grid-tied inverters ~5kwp.
House also has batteries connected and obviously that's the main system (all 1 phase). I would like, during bad weather, to somehow switch the grid inverters to the same phase of the house and use the power from at least one of them.

The inverter is a quattro and supports 2 AC IN inputs + I can add another Fronius inverter to AC OUT.

My problem is, how do I elegantly, switch between phases of the grid tied? Thought of using sort of an ATS, but I'm thinking might damage them if it's rapidly switching from one phase to another.

Thanks for any ideas :D
 
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