Tesla Cybertruck, PW3, V2H, VPP: The Ecosystem Explained.

[akenis]

Great article from the Aussies:

https://www.elitepowergroup.com.au/...rwall-3-powershare-vehicle-to-home-australia/

I asked the author to join us here.

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[akenis]

Here's what I sent them:


Greetings,

Just read your indepth article:

Tesla Cybertruck, PW3, V2H, VPP: The Ecosystem Explained.

https://www.elitepowergroup.com.au/...rwall-3-powershare-vehicle-to-home-australia/

I really hope everything in your article is correct, because that is the exact setup I would like! Cybertruck coming soon.

However, I have issue with 2 items. See attach. And ref Tesla info:

https://www.tesla.com/support/powershare

1. Tesla says that PowerShare will be (at some point) compatible with ANY PowerWall and ANY gen Wall Charger and no further equipment is necessary. (Charger must be on backed up circuits). Evidently software will eventually enable power line communications to the truck negating the requirement for the comm wire in UWC.

For new installations without Powerwall, Tesla is requiring Gateway 3V (different from Gateway 3). 3V has a transformer to make 110 V for the system. And also the UWC with comm cable. This equipment is included with the purchase of Foundation Series Cybertruck. Except for people that already have Powerwall and charger. Tesla is instead giving them a $700 shop certificate or supercharging voucher. And they have to wait for PowerShare to be enabled for existing setup.

In the US we have new CT owners up and running with 3V gateway and UWC.

2. You also said that the truck can do vehicle to grid and hinted that the trucks battery could be used at night or even for load shifting strategies (charge the truck up at night on off peak rates, and power home when rates are higher).

I would love it if this will be enabled. But I have not seen any evidence this will work. Most people I ask in forums say no. Tesla doesn't want you to cycle the trucks battery. They say it would only work if you disconnect from the grid. If true, that would of course disable the hope of vehicle to grid charging.

Making matters more confusing, my installer says that there is not currently a way to connect 3V to PowerWall 3. Indeed, looking at Tesla installer resources for PowerWall 3, they have instructions for Backup Switch, Gateway 2 and gateway 3. But not gateway 3V.

Your article makes in sounds like PowerWall 3 would just see the CT as an additional PowerWall 3 and offer all the benefits you mention. Very confusing to me.

So as the consumer, I am not sure how to proceed. 2 Options:

a. Proceed with currently functioning PoweShare setup (3V and UWC). I already paid for it. Hope that this will integrate as you describe with a future PowerWall 3 installation. Earn tax credits.

b. Give up the equipment I already paid for, take $700 credit, and install a conventional PW3 setup. Then wait for this system to be PowerShare compatible.

Great article! Thanks for any in guidance you may provide.

I will forward your article to the Cyber truck owners forum along with my questions. Hope to see you there

https://www.cybertruckownersclub.co...ck-pw3-v2h-vpp-the-ecosystem-explained.17105/

or reply direct and I will forward to the group.

o

 

[akenis]

Well the electric viking seems to believe VTH (with Grid) and VTG are in the plan.



Maybe the Aussie's know something we don't?

I commented:

Any update now that CT is actually doing VTH in the US with Gateway 3V and UWC?

BTW....the special V3 gateway does not currently integrate with PowerWall (they do say coming).

They also say that no additional hardware is needed for existing systems with ANY version PowerWall AND any version WC (as long as it's on backed up loads). Again, coming.....

Through all of this I haven't seen anything saying CT can do anything other than VTH if the grid goes down. No sign of VTG or choosing when you want to power your home with CT. Unless you go out and disconnect yourself from the grid!

 

[akenis]

More Aussie stuff. They actually have functioning V2G.

 

[akenis]

More confusion with this info from Tesla:



Hello Andrew!



“We apologize for the delay. Thank you for sending your Powershare design question in for review.

It is possible to install Powerwall units downstream of a Powershare Gateway, however this is not a recommended solution as it requires contact Tesla for assistance with the commissioning due to multiple “Site-Controllers” being on the property.

If the customer is planning to get a Powerwall unit at the same time as getting a Powershare System installed, then we would recommend that the system would be installing either the Backup Gateway 2, Gateway 3, or Backup Switch as the relay device for the Powerwall units rather than installing the Powershare Gateway (Gateway 3V).

If the customer is planning on getting a Powerwall system in the future but wants to get Powershare System installed immediately, then we would recommend installing the Universal Wall Connector with the Powershare Gateway. In the future, additional Powerwall 3 units can be installed into the backup circuit and with Tesla assistance the system can be commissioned properly.”

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So I'm contemplating declining 3V gateway that I already paid for and going with a more conventional PW3 install with BG2, BG3 or backup Switch.

 

[Smart Charge America]

 

[HaulingAss]

I really hope everything in your article is correct, because that is the exact setup I would like! Cybertruck coming soon.

The article claims:

With 120 kWh of energy storage in the Cybertruck, it is almost 9 Powerwall’s in storage capacity.

However, AFAIK, the Powershare Software doesn't allow you to use the last 20% of the battery. By my calculations that leaves 98.4 kWh useable (assuming the battery was charged to 100% when the power went off). If only charging to the standard 80%, that only leaves 73.8 kWh, or about 5.7 Powerwalls (assuming 13 kWh/Powerwall), not almost 9 Powerwalls.

 

[akenis]

The article claims:



However, AFAIK, the Powershare Software doesn't allow you to use the last 20% of the battery. By my calculations that leaves 98.4 kWh useable (assuming the battery was charged to 100% when the power went off). If only charging to the standard 80%, that only leaves 73.8 kWh, or about 5.7 Powerwalls (assuming 13 kWh/Powerwall), not almost 9 Powerwalls.

You can set the lower limit I believe. Is 20% the min?

 

[HaulingAss]

You can set the lower limit I believe. Is 20% the min?

I don't have Powershare, so I don't know. But it would make sense that it wouldn't discharge below 20%.

 

[akenis]

I don't have Powershare, so I don't know. But it would make sense that it wouldn't discharge below 20%.

I believe the default is 20%. You can go lower or higher if you want.

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