Correct me if I'm wrong: I believe AIOs can accept AC coupled power through the load ‘output’ port. That leaves the Grid and Gen inputs free for their roles as labelled.
The AC coupled inverters connect via a breaker in the critical loads panel. William Miller Miller Solar.com 805-438-5600 www.millersolar.com On Sat, Aug 9, 2025 at 9:50 AM david quattro via RE-wrenches < [email protected]> wrote: > True. if you want to do grid, gen, and AC Couple then you need a transfer > switch or contactor. > Likewise I haven’t touched a Powerwall, nor an Enphase battery. > > > > On Sat, Aug 9, 2025 at 9:36 AM jay via RE-wrenches < > [email protected]> wrote: > >> One big issue with the AIO’s is that you can’t do grid, generator and ac >> coupling to the best of my understanding >> >> I do like the idea of just removing the old GT inverter and stuffing that >> into the AIO, elegant >> >> yes its my understanding that Tesla won’t accept generator. While many >> are pissed off at eg4, I won’t touch tesla. >> >> and FYI you can buy the same inverter at Fortress. >> >> thanks everyone. >> >> jay >> >> >> >> On Aug 9, 2025, at 10:28 AM, Tyrone Houck via RE-wrenches < >> [email protected]> wrote: >> >> Midnite AIO and Sol-Ark both work great for AC coupling in my experience. >> If anyone is new to "All In One" inverters I recommend having tech support >> walk you through commissioning, check firmware, etc. the first time. >> >> >> >> >> On Sat, Aug 9, 2025, 8:47 AM William Miller via RE-wrenches < >> [email protected]> wrote: >> >>> Two options: >>> >>> 1. AC couple existing inverter to a battery capable inverter. >>> >>> 2. Replace existing inverter. >>> >>> I favor option 2. >>> >>> Option 1 is only preferred if gaining access to the existing inverter >>> for replacement is difficult. An example would be a micro-inverter system. >>> >>> New AIO inverters allow true high voltage PV input so the existing >>> stringing will probably not need to be modified. >>> >>> I’m new to this so type of upgrade so I welcome any corrections to these >>> opinions. I did replace a Sunny Boy in my shop with a Soul Ark and it’s >>> working great! >>> >>> William Miller >>> Miller Solar.com >>> 805-438-5600 >>> www.millersolar.com >>> >>> >>> On Sat, Aug 9, 2025 at 8:26 AM Jay via RE-wrenches < >>> [email protected]> wrote: >>> >>>> Is there a consensus as to what equipment to use for adding battery >>>> backup to normal GT inverter? >>>> >>>> >>>> >>>> I’ve had a few people ask and I actually haven’t done it. >>>> >>>> Thx >>>> Jay >>>> >>>> >>>> _______________________________________________ >>>> List sponsored by Redwood Alliance >>>> >>>> Pay optional member dues here: http://re-wrenches.org >>>> >>>> List Address: [email protected] >>>> >>>> Change listserver email address & settings: >>>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >>>> >>>> There are two list archives for searching. 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