Wondering what everyone's thoughts are on solar system sizing vs # of powerwalls. My utility has peak TOU periods in the summer (6-9pm) and winter (6-9am & pm) where I do not want to use any energy except from solar + powerwalls. I am unlikely to be generating much solar during the 6-9am winter and 6-9pm winter & summer peak TOU periods, so I would be relying on the powerwalls during those times. Currently debating 10-11kW of solar with either 2 or 3 powerwalls (house is all electric heating and cooling). Is 3 powerwalls too much for only 10-11 kW of solar?
The other thought I had is my utility nets all monthly energy usage in the various TOU periods, so in theory I could grid charge the powerwalls in the off peak TOU period to net against my solar generation (which is likely generated almost all during off peak) if my solar was unable to charge 3 powerwalls.
Thoughts?
The other thought I had is my utility nets all monthly energy usage in the various TOU periods, so in theory I could grid charge the powerwalls in the off peak TOU period to net against my solar generation (which is likely generated almost all during off peak) if my solar was unable to charge 3 powerwalls.
Thoughts?