Submitted by peterjs on Fri, 2019-03-08 07:41
I have a single Powerwall installed at my house and its been working great for the last year plus with my SolarCity solar panels.
I recently had a 2nd set of non-Tesla solar panels added to the roof of my house to increase the amount of solar energy that I was generating. To make things simple from an installation and troubleshooting standpoint, I had the power for these additional panels wired into my main power panel.
Since I use the Tesla Powerwall iPhone application to monitor my energy use as well as determine how charged my Powerwall is at any one time, I am confused now on what the Tesla Powerwall application's Power Flow diagram means given that I have another source of power coming into the main power panel from the 2nd set of non-Tesla solar panels. I think that what the application shows for how charged the Tesla Powerwall is and how much solar energy has come in from the Solar City solar panels is indeed correct but I wonder if the power coming from the 2d solar panels into the main power panel would should up in the Power Flow diagram as coming from the grid? Any ideas would be welcome.
Also, with the additional power to the main power panel from the 2nd set of solar panels, I wonder whether or not the Powerwall would correctly detect a loss of power from the grid on a hot day that all the solar panels are generating power but there is a power outage in the grid. Does the Tesla Powerwall determine a power outage from the lack of any power at the main power panel or can it detect the fact that the PG+E power at the grid is no longer there while the 2nd set of solar panels is still providing power to the main power panel?
Thanks ... Peter