The only time I want any power coming from the Powerwalls is 4-9pm (unless there is a power outage).Have you tried “Self Powered”? This is what our system behaves like.
As generation kicks in in the morning, it starts feeding the house (with batteries supplying remainder). Once solar can take over fully, any remainder goes to batteries. Eventually batteries charge to full, and solar feeds house and grid.
As the sun starts going down, solar + batteries are used, eventually switching to battery only. There’s no time-based control (peak etc) but it’s not necessary if you have enough battery to get you at least through the peak period.