give it a try, disconnect from the grid at 1pm on a clear day. how much solar (DC/AC) do you have and number of powerwalls? what is your base load?This isn't absolutely required. It took some back and forth with Tesla but I was able to get a system where the PV generation could exceed what the Powerwalls could absorb. I made it clear that I understood the edge of case being unable to charge.
No, don't spread misinformation.The SolarEdge inverters in this case may even support modulating their production via frequency shifting so less likely to be an issue.