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The only generator-type backup power solution that Tesla is willing to support is via a transfer switch that completely isolates the Powerwalls and rooftop solar when the backup power source is active. So, that typically means adding a transfer switch before the loads panel with the Powerwall's...

So you want to connect your rooftop solar inverter AC output directly to the same circuit as the F150 AC power output? If so, don't do it. Your rooftop solar inverter is a current source (i.e. grid following) inverter that will push power back to the inverter in the F150 and likely let out the...

That should work if the transfer switch is setup such that your solar/battery system is connected to the utility input side on the transfer switch.

That's one thing I would like to certain about Pro Power OnBoard. Typically, 240/120V generators only have GFCI on the 120V outlet circuits.

Hmm ... maybe we are saying the same thing. The main purpose of the autotransformer is automatic load balancing between the 120V legs. I don't think you get that connecting directly to Pro Power OnBoard. This is the setup I have used with 240/120V generators without problems: The diagram...

Theoretically yes. However, it has not been an issue in my experience with 240V split-phase neutral bonded generators. It's probably because the the loads on the 120V legs are never perfectly balanced anyway and the autotransformer has very high rating for neutral imbalance rating.

That's one of the things I was wondering about with Pro Power OnBoard. Is there actually significant circulating current to cause problems (e.g. GFCI tripping)?

Yes, that's a diagram for the Victron autotransformer. You can get a UL compliant Growatt 11.4kW autotransfomer with built-in ATS for ~$500.

No. I mean autotransformer or perhaps more accurately neutral forming autotransformer. Specifically, only connecting the L1 and L2 from a 240V power source (e.g. generator) and connect L1, L2 and neutral without ground bonding from the autotransformer to loads.

Has anyone used Pro Power OnBoard with an autotransformer to work around the bonded neutral issue? I see reports of success with neutral transfer switches but I have used autotransformer with bonded neutral generators in the past and wondered if the same can be done with Pro Power OnBoard...

I am interested in F150 Lightning and see that it uses CCS connector for DC power output. However, I am not able to find any info on the protocol used to control the DC power output. There is a CCS standard in the works for controlling DC power output and I would like to know if F150 Lightning...