I got my solar / PW+ system installed and turned on in late November. My solar is about 8.6kW peak, two strings wired into two of the MPPT inputs in the PW+ inverter.
Today was the first day I had a grid outage. It happened during a storm watch event, so my battery was charged to 100%. Looking at the data from the Powerwall data logging utility I run, I notice that when the grid went out, my powerwall raised by house frequency to about 64Hz. I was under the impression the frequency rises only in a case where it needs to shut off power to microinverters. As my solar panels are wired as strings to the inverter, and the inverter can directly change power output simply by changing the I-V operating point, I was curious why the frequency would rise. Maybe this just happens by design, regardless of what kind of solar you have?
Also having a grid outage made me wonder what actually happens if the battery runs out of energy. The Tesla website says it will shutdown and try to turn on each hour between 8AM and 4PM the next day. Has anyone ever tested this to confirm? I'm curious to know.
Today was the first day I had a grid outage. It happened during a storm watch event, so my battery was charged to 100%. Looking at the data from the Powerwall data logging utility I run, I notice that when the grid went out, my powerwall raised by house frequency to about 64Hz. I was under the impression the frequency rises only in a case where it needs to shut off power to microinverters. As my solar panels are wired as strings to the inverter, and the inverter can directly change power output simply by changing the I-V operating point, I was curious why the frequency would rise. Maybe this just happens by design, regardless of what kind of solar you have?
Also having a grid outage made me wonder what actually happens if the battery runs out of energy. The Tesla website says it will shutdown and try to turn on each hour between 8AM and 4PM the next day. Has anyone ever tested this to confirm? I'm curious to know.