As far as I know, tesla does not do large scale SGIP and has not for quite some time (unless its equity and resiliency). Tesla didnt offer large scale SGIP in 2020 when I got my 2 powerwalls. They didnt offer SGIP at all, really, again unless its equity and resiliency which people use with the same name, but its really a different program at least to me.
Yeah, @Vines is the best lol. I didn't even know large-scale was a thing until he posted about it on TMC. I was like 1 email away from cancelling my solar+ess install since I couldn't afford 3x Powerwalls, and PG&E would not approve 2x Powerwalls. But then he posted about the large-scale thing; and wowowweeeee