No, they haven't, and I've been trying to get them to do something to resolve it since late last autumn. At least I made progress by getting them to agree to send a technician to my house last week to witness the problem firsthand. The technician encouraged me to wait about a week and then try following up on the issue, so I'll be doing that.Has Tesla given you any time frame for resolving this issue ?
I've heard various conflicting theories from customer support. I don't think anyone is being malicious, but my opinion is that many of the support reps themselves are in the dark about what the software is actually doing.I just spoke with Tesla customer support. They advised that in a grid outage, the PV/inverter won't come back online until the Powerwall capacity drops below 80%. They advised it was an approximate 15 minute polling interval from the Gateway. In my test this weekend, the battery never dropped below 95%. For my next test I will simulate a longer grid outage during the day and let the battery drop below the 80% threshold and see if the PV comes back on-line. Makes sense. Hopefully it actually works that way.
In my past calls, Powerwall support reps threw out various thresholds like 90%, 80%, and 70%, hence my efforts to keep the charge lower before starting off-grid tests. All that should matter is whether the Powerwalls can accept the output of our solar array. With two Powerwalls and a maximum AC rating of 6.7 kW on our solar, this should not be an issue even above 90% charge.
You can configure the backup reserve percentage, but there is no way to explicitly configure the maximum charge. This is a feature that I requested from Tesla several months ago. With release 1.34.2, the buggiest I've seen in a while, our Powerwalls end up spending more time at "100%" than I'd prefer.My limited understanding is that you can configure what % the Powerwall charges and this can be done through the Tesla app.
Sounds like a good plan. Hopefully, by the time you actually need to sign an installation contract, Tesla will have resolved the issue that some of us are experiencing of not being able to charge from solar during outages.Perhaps then I'll just make a deposit and wait until they contact me and are ready to get into specifics.
Don't get me wrong - I think the Powerwall is a great product. I just hope that Tesla starts putting more effort into Powerwall software validation!