I've had my solar panel plus Powerwall system operating for about 10 days now, and enjoy monitoring the system using Power Flow in the Tesla app. Today I saw something odd (see photo): it appeared that I was drawing power from the Powerwalls and sending power to the grid at the same time (around 4pm in the chart). I haven't seen this before.
Why would this happen? I would expect energy to go back to the grid only when solar is producing more than the home is using, in which case the Powerwalls should either be charging or doing nothing. I also downloaded the data to see if it was just a UI issue, but the data shows the same thing.
At the moment, I have the Powerwall reserve set to 0% because I'm trying to determine if the Powerwalls can get me through the night without using the grid. I don't have any time-based settings.
Why would this happen? I would expect energy to go back to the grid only when solar is producing more than the home is using, in which case the Powerwalls should either be charging or doing nothing. I also downloaded the data to see if it was just a UI issue, but the data shows the same thing.
At the moment, I have the Powerwall reserve set to 0% because I'm trying to determine if the Powerwalls can get me through the night without using the grid. I don't have any time-based settings.