Thanks for going through that! We used aerocompact, with 18” ground screws/anchors (a lot of them), and their engineering plans for our anticipated wind load didn’t even require all possible ground screw spots to be filled, so it seems like piles might not be strictly necessary?
With panels getting so much cheaper, is tracking necessary still? Maybe if land is at a premium, but I know the aerocompact commercial deployments don’t support tracking.