Pull the start of the Peak period earlier to avoid the grid pull. When the SOC is really high, Balanced will use PW energy during Off Peak. This is one thing that I wish had a setting to completely block. Since I'm on PG&E EV2-A I don't mind the PWs draining between 9pm and midnight because that is the Part Peak rate and the vast majority of my generation happens during Off-Peak before 3pm.
This chart is typical for my system this time of year. I would like to avoid the morning discharge, but it's not a lot of energy. It's almost like it goes into a Self-Powered like mode as soon as the solar starts generating. You can also clearly see that it is not regulating the PW discharge as tightly during the nighttime Part Peak as it does during Peak. During usage spikes the discharge does not follow closely, resulting in some grid draw.
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