@daveh85 's post above said an advisor told him that they can stack one additional Powerwall on top of each Powerwall+: Discussion: "Powerwall +"
So one inverter box per every 2 Powerwalls.
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Discussion: "Powerwall +"
- Thread starter willow_hiller
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@daveh85 's post above said an advisor told him that they can stack one additional Powerwall on top of each Powerwall+: Discussion: "Powerwall +"
So one inverter box per every 2 Powerwalls.
I looked at @daveh85 's post and he mentioned stacking...but did he indicate they can no longer stack 3 deep?
That would make sense as 1 PW seems undersized if it is their 7.6 kW inverter under the hood. It will be interesting to see how these can be combined for larger installs.
I also wonder if Tesla is planning to sell this new module to third parties like they do the PW.
It looks to me like the Gateway 2 and 7.6kW Solar Inverter are combined into one enclosure that matches the width of the Powerwall. This makes wiring simpler and could eliminate a redundant communication module and processor.
But if you want a larger PV setup, or more PW's? I could not find anything on the spec sheet about adding more PW's. The description says powerwall, not possible powerwalls. So I assume they will still sell both setups? Fun watching things change. Still does not answer about Elon's Nov comment. Still seems to imply existing PW's with new FW with increase their power output?
I was told one PW Plus will support an additional 2 PWs. What happens beyond 3 is unclear.
I wonder with the new codes' coming in July that say PWs have to be 3 feet apart, stop this? Vines?
Don't for get the rapid shutdown requirements and other considerations of why having a separate GW2 is helpful.
For example, if your PWs are on the inside of your garage, you still need a rapid disconnect(s) near your MSP on the outside. So you can put the TEG2 outside near the MSP and have the breakers in there for rapid shutdown of the ESS.
And of course many California AHJs do not accept the on/off switch on the Powerwall2 as a disconnecting means, which means you'll need a disconnecting means near this garage-mounted PW as well.
We've got a full spec sheet!
It's interesting to compare these specs to current Powerwall 2 specs and Musk's comments re doubling of power on newer units / Powerwall+...
1) Off grid 9.6Kw is "nearly double" current 5Kw (not clear if this is Powerwall only or Powerwall plus PV in some combination)
2) On grid 7.6Kw is >"50% more" that current 5Kw (not clear if this is Powerwall only or Powerwall plus PV in some combination). This seems like less than could be supplied today from separate PV inverter (up to max output of inverter) plus Powerwall (up to 5Kw).
3) Battery only is still limited to 5Kw
4) 50 amp circuit v 30 amp circuit
I hope these specs are not what was relied on for Musk's statements and that the update helps more that just Powerwall+
Tesla (TSLA) Q1 2021 Earnings Call Transcript | The Motley Fool
Elon had a tweet linking it to temperature of 30C. The data sheet specs are over the full temperature range.
Trying to figure out the practical gain.
Is it basically that in order to have whole home back up you need more peak power to honestly sell one or two PW installations?
I mean, if one PW can discharge at 9.6 that's basically an hour of back up if your house is blazing away or, I suppose, at least is it that one powerwall could power the whole house, at least for a time?
After a few months of testing with 3 PWs I have never come anywhere close to needing the 15kwh (three times 5) output -- that's running the whole house, AC blasting, jaccuzzi on, and charging the Model 3 at the same time. I would never even do that. I suppose if I was doing it by accident.
Anyway, it would help with starting up AC units, which if you see other threads was a major pain in the ass.
Is it basically that in order to have whole home back up you need more peak power to honestly sell one or two PW installations?
I mean, if one PW can discharge at 9.6 that's basically an hour of back up if your house is blazing away or, I suppose, at least is it that one powerwall could power the whole house, at least for a time?
After a few months of testing with 3 PWs I have never come anywhere close to needing the 15kwh (three times 5) output -- that's running the whole house, AC blasting, jaccuzzi on, and charging the Model 3 at the same time. I would never even do that. I suppose if I was doing it by accident.
Anyway, it would help with starting up AC units, which if you see other threads was a major pain in the ass.
I think sometime around October 2020 will be the date where the changeover happened. If you look at the California Energy Commission's spreadsheet of registered battery systems, you can see that a third serial number was added for Powerwalls in October 2020: https://www.energy.ca.gov/sites/default/files/2020-05/Energy_Storage_System_List_Data_ADA.xlsx
Serial numbers starting with 3012170.
pdx_m3s
Active Member
I can see them adding a little more output to existing installs, but they will be limited by wire gauge and breaker size.
I believe that the call center employees are telling you this, but I also have enough experience (both with Tesla specifically, and the fact that I also at one point managed employees in a call center) to say that call center employees are usually fairly low on the totem pole of "How is this technical thing going to work".
TL ; DR, I am sure they are telling you that, but have little confidence that what you think they are telling you is what they are saying, or that they even know what they think they are telling you.
Has more data has been posted, it seems all the installs with 10 gauge wire and 30 amp breakers will be fine with a 7.5K output surge capacity
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