Powershare is Tesla-centric. Currently, Cybertruck is the only vehicle that supports it. No reason to think you couldn't run two Cybertruck in V2H mode, especially if you also have PW.
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Discussion: Powershare [V2X feature currently announced for Cybertruck]
- Thread starter GenSao
- Start date
There currently is no standard for V2x. And most companies doing it are using DC from the vehicle, while Tesla is using AC. So I wouldn't expect Powershare support from anyone else.
There is a large trial in the Netherlands that is using car-share Hyundai/Kia vehicles with special on-board chargers that allow bi-directional AC charging and grid services. This is not a scheme available to private car owners. However, it demonstrates that it is possible.
Grid tie inverters are a standard though. They just require certification and a lot of power company red tape to implement.
The Tesla Gateway only handles 200A. Unless the 400A service splits into 2 main panels, it's not initally compatible.
That said, 200A could be split off with the UWC and loads to backup via Powershare.
There are ways, just more complicated.
so a modern home built with a 400A panel would need a 200A sub panel installed near the desired vehicle location and powerwalls ?
The subpanel wouldn't need to be adjacent to them them though. Could collocate with original panel to make circuit transfer easier.
CrazyRabbit
Active Member
Or just upgrade one panel to a 80 circuit panel and move over desired loads (practically all)…
It is what I did.
If there is a will there is a way.
It is what I did.
If there is a will there is a way.
I guess my question is about the panel requirements. Why does a modern home built with a 400A panel NOT work with Powershare?
Is that what you are saying?
You can't put a Gateway between a 400A panel and the grid. You can put a Gateway after a 400A panel (assuming there is a 200A breaker for it) or possibly in parallel. Either way, Powershare can't feed a 400A panel.
CrazyRabbit
Active Member
You can put a 400 amp panel on a 200 amp gateway, de-rate the gain breaker if required. I have 400 amp generation panels connected to teg.
I want to see a demo of PowerShare..
CrazyRabbit
Active Member
I got 400 amp service. 99% of all 400 amp services will more then one loads panels. 400 amp panels are expensive.
It is symantics. But yes Tesla doesn’t have a 400 amp gateway, yet.
Yah, I have 400A feeding two 200A panels. My original point was just that you can't do full house backup with one Gateway/ Powershare connection.
GW on panel 1 and leave 2 as unbacked up is an option. Or two GW and sets of PW.
CrazyRabbit
Active Member
I want to see demo of PowerShare and will it void your battery warranty?
Thing I like best is I can charge the truck with my 12kw generator, then dump the charge into my powerwalls. Effectively charging powerwall with generator.
Thing I like best is I can charge the truck with my 12kw generator, then dump the charge into my powerwalls. Effectively charging powerwall with generator.
Re genset transfer: Only if they allow V2PW vs V2H. I can see technical reasons why they would keep PW in generation mode.
CrazyRabbit
Active Member
I combined my house onto a larger, more circuits, 200 amp panel and back up that panel with gateway. Do loads calculation. I got backed up panel and non backed up panel. I did have Tesla use 3/0 copper for everything since my panels will have 200 amps on them, well at least house. I will eventually have a shop sub panel off my non backed loads panel. I also have evse on non backed up panel.
CrazyRabbit
Active Member
V2H would kind of be useless without V2PW. If powerwalls are empty, then house shuts down while you go find a charge. I don’t see any technical challenges to this, really not any different then mixing with solar or generator. That’s why I want to see demo of feature with powerwall.
I wish Tesla would make generator receptacle box, connected to can bus with a contactor. Charging on solar is no longer a tax credit issue.
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