I'm wondering if the some of the oddness I see on TBC is related to daily saving time as well. I have my peak period set to be 2 pm to 6 pm. I've noticed that my Powerwalls are charged in the morning but then around 1 pm, it starts sending everything to the grid and the house starts getting powered by the Powerwalls, even if the Powerwalls aren't fully charged. Shouldn't it continue charging the Powerwalls up until the start of my peak period?