It looks like as-is the canopy will cover maybe 10 spots? I wonder if that's just the first of many? Ideally, they could solar shade most of that entire lot back there which is relatively huge, probably over 100 spots?. It would be a welcome addition to ALL users, not just Tesla people as a shaded spot is gold in the AZ summer. I'm guessing to actually offset 100% of the electric for a 20 stall SC you would need to cover quite a large area. But does the added construction/solar panel cost pencil for Tesla?
What an absolutely awesome idea to cover THE ENTIRE LOT with solar panels as a corporate good will gesture even though the generated power would be used for the supercharger station. The gesture of good will would be noticed by all and would set an excellent example.
... as you said..... especially here in Phoenix metro during the hot, hot summer months.
Please forward your idea to Tesla! What a great way to partner with the owners of Tesla supercharger sites!