I have Powerwall for 2 years now. It does work in "time shifting" mode nicely charging from solar during the day and feeding the home at evening when energy is expensive.
It failed miserably however when we lost grid power. It was pre-announced power outage and I didn't do any preventive work to protect computers and electronics as I thought I'm covered by Tesla.
Boy was I wrong. Tesla Powerwall didn't kick in at all. This was just the start of the saga. Now I'm 3 weeks into it with 10 calls to Tesla with no resolution of the problem.
I talk to low level tech support folks who are kind but don't know much and can't help. They say that they will "escalate" to next level and I'm not allowed to talk to the next level. That's fine with me if they resolve the issue. Now 3 weeks later the issue is not resolved.
The worst part is that they ask me to do "tests" by manual disconnecting the power to the house which causes a lot of harm to computers and electronics. So it takes me 1 hour to prep the house and 2-3 days after that to fix all the damage. Well it is a big estate with 10 WiFi access points and over 100 computers and controllers online according to the routing tables.
I don't mind doing it if there would be someone from Tesla knowledgeable and fixing things on the spot so that we do it all with one session.
To my great surprise they told me that everything seems fine on their end and the last test failed because the load could be too big. They don't say how big is too big. I feel I was left in the mud and I'm pretty sure Tesla Powerwall will not kick in during the next power outage.
Anyone experiencing similar kind of "technical support"? Any way to escalate the case and get it resolved ?