Currently without PTO, hasnt been submitted by Tesla, my system solar is generating and providing power to my home during the day and feeding the grid. The Powerwalls are in Standby and are not charging or discharging. The numbers from the Powerwall API do not appear to be very accurate but my smart meter is showing that I'm putting power on the grid vs using power.There is definitely a comm wire(s) between a Powerwall+ and Backup Gateway 2, I remember my Powerwall install crew showing me it inside the inverter/controller (above the PW+).
I disconnected my home from my utility service and closed my disconnect which as I understand it effectively turns on my Backup Gateway 2 which will let the solar and Powerwalls operate. I saw in my Tesla app that my grid was down (outage) and it showed I was in Backup mode. I saw the state of charge of my Powerwalls Which it appears to just show the total SOC; I think the installers explained that part to me. Everything powered in my home was working including AC, which was nice to see. It was the middle of the day with plenty of sunshine. After several minutes, I saw solar production in the app very briefly and then it went away. My Backup Gateway 2 was not broadcasting its SSID. I tried connecting to its SSID anyway and could not connect. All breakers in the gateway were closed/on as they had been since my install day. After 15 minutes of not seeing any real solar production, I opened the PV/ESS disconnect and closed my utility disconnect.
I don’t know why the gateway isn’t broadcasting its SSID. Maybe once it is setup with a Powerwall(+) it cannot be directly interfaced with? It was definitely connected to my network at one point while the installers were doing the initial commissioning, but again they ran into issues and after talking with their tech support they connected the PW+’s inverter/controller to my home network instead.
I also don’t know why I wasn’t having any solar production. I thought I read that the inverter does a test every X minutes to see if solar is able to produce, and then it will turn it on.
Tesla Powerwall API Readings (Last 24 hours)
SmartMeter Readings (Last 24 hours)