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Discussion: Powerwall 3 [Speculation / Discussion etc]
- Thread starter n.one.one
- Start date
All valid possibilities but unlikely any major technical issue that Tesla hasn't solved before in PW2. It's even possible the PW3 has the technical capability in HW design but intentionally crippled in firmware. Ultimately, it's more likely a business decision rather than insurmountable technical hurdles to not support third-party inverters in PW3.
It is possible that it might not have inputs for current monitors to attach to external inverter feeds, so it would have no way of knowing how much external PV was producing.
SteveO332
Member
Same here, no mention if/when PW3 would be available but they also bumped my assessment from 10/25 to 10/2. Appears some spots might be opening up for folks putting their project on hold? (speculation)
Jeremy3292
Active Member
Yeah I was 10/30 and then kept checking for reschedule dates and 10/9 popped up, a whole 3 weeks earlier than before.
My plan is if they can get it installed by 12/31, I’ll take PW+/2. Otherwise I’ll just put it on hold and wait for PW3. I mean if they can’t get me installed by 12/31 then we are in 2024 already and release is imminent…
See the quoted Tesla doc:
Discussion: Powerwall 3 [Speculation / Discussion etc]
Now I'm really torn...might have to go with Powerwall+/2 over waiting for Powerwall 3. I have a feeling installs aren't really gunna happen until at least April 2024 and even then probably going to be a limited supply. So realistically could be almost a year from today. If I can get my order...teslamotorsclub.com
It makes little sense technically to me as well but business motivation often trumps all else.
Interesting, Are they still going to produce Powerwall 2's? If not it definitely signals a move into a completely vertical environment - you can't have Powerwalls with Enphase or Solaredge systems, and no retrofit markets will work. I guess if you had Sunnyboy or Fronius string inverters you could rewire them into a Powerwall 3 and toss the old inverters, but that makes the economics even worse.
Powerwall pricing didn't seem to change either, so still a losing economic proposition, but will be interesting to see how the other solar vendors respond to this.
All this complexity makes me double down on waiting for a V2H vehicle as the core of an economic ESS system, which eliminates Tesla cars as an option, at least for now.
Jeremy3292
Active Member
PW3 hasn’t technically been released yet; pricing is unknown.
Yes, it appears PW2 will continued to be manufactured as a retrofit option.
I read this article today and it implied the PW3 does not integrate with the PW2. Anyone know if this, correct?
The article says: "Powerwall 3, however, doesn’t play nice with other battery solutions, including Powerwall 2, and can’t work with other solar inverters. "
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Never mind, found this in the PW3 notes on the FAQ on the Tesla site: "Powerwall 3 can be added to other Powerwall 3 batteries and cannot be added to Powerwall 2 or Powerwall+ batteries. Powerwall 3 is not compatible with other solar inverters." Sort of sucks.
The article says: "Powerwall 3, however, doesn’t play nice with other battery solutions, including Powerwall 2, and can’t work with other solar inverters. "
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Never mind, found this in the PW3 notes on the FAQ on the Tesla site: "Powerwall 3 can be added to other Powerwall 3 batteries and cannot be added to Powerwall 2 or Powerwall+ batteries. Powerwall 3 is not compatible with other solar inverters." Sort of sucks.
That is what the Tesla website says, and is discussed in this PW3 discussion thread I moved your post to.
Its best to go with what Tesla has said directly, in print on their web page:
When will Powerwall 3 be available to order? When should I talk to my Certified Installer about Powerwall 3?
Powerwall 3 will be available to customers starting 2024.
TomServo
Active Member
Will PW3s be available to non-Tesla solar folks? I recall reading this buried in some online source a few weeks ago. My plan is to add batteries to my PV system in the next 12 to 18 months. 2 PW3s would be the perfect solution but I don't have Tesla panels, Inverters, or combiner gear.
Jeremy3292
Active Member
That isn't how it works. From the looks of it the PW3 is not designed to be able to integrate with an external solar system. You could probably install a PW3, but it would act like a standalone PW with no knowledge of solar. (So, no charging from solar when the grid was down, no solar self-consumption support, etc.)
Not to mention that Tesla doesn't sell Powerwalls as just parts, nor do they support, allow?, self-installation.
If you want to integrate with external solar you need to go with a Powerwall 2 system.
Jeremy3292
Active Member
Apacheguy has already made it clear that they dont believe Teslas stated information above, so they know this already and are ignoring it. With that being said, advising others to do the same thing is out of bounds in my book.
I would probably wait if there was not some financial incentive to move forward now, and I had nothing. PW 3 is supposed to be an integrated solution, with a LFP battery, so less charging conversions back and forth.
That only works if one is ok tying their entire project to Tesla, for the foreseeable future. It sounds like it will be a somewhat closed system, in that Tesla itself is telling people that PW3 is not available for retrofit. I am not a big fan of proprietary systems, so that would also play a part in my decision making.
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