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AC Coupling on the backup side
Posted: Tue Feb 24, 2026 9:56 pm
by nathan
Hi I am installing a KH10 with 23kwhr of EQbatteries. My question is can i put the existing 5kw Sungrow inverter on the backup side of the inverter to supply solar to the battery during a blackout?
Re: AC Coupling on the backup side
Posted: Tue Feb 24, 2026 10:00 pm
by Will
Hello,
Not recommended, if you do that, you'll find the EPS will trip with overload if you solar generates more than your house load while off grid as it can't be clipped.
If you want solar generation during a powercut you should dc couple it.
Re: AC Coupling on the backup side
Posted: Wed Feb 25, 2026 1:04 am
by nathan
Thanks for your reply
Re: AC Coupling on the backup side
Posted: Wed Feb 25, 2026 1:04 am
by nathan
So it cant frequency shift ?