Ok, so let's think this through:
A car dealer doesn't need a solar canopy to get solar power for his dealership, car charging or any other reason, right? So now perhaps you may realize that while the financial aspect is one part, it is not the primary driver. The most important part of this is how it helps the car dealer's "halo effect" and what he/we do together in order to enhance GM's position vis-a-vis renewables, the car dealer's own image and the sales/test drive process.
Now put a fair value to that and you get the picture. I cannot confirm/deny the amount yet you've all already gotten the figure and most understood that $75K is outrageous for that amount of power, no matter the marketing value.
Notwithstanding the market efforts you've seen to date by PLC and SLMU, remember that the resources that could be afforded were all a matter of what was available at low cost, in the runup to funding. As I have said before, Rome was not built in a day, and while there is no excuse for our poor IR efforts, I believe that there are steps on a monthly basis which lead to optimism not being misplaced.
We cannot deny our past, nor that of the founders. Yet what we can all hope is that there is a sincere desire to turn a corner and that there has simply not been the bandwidth available to do more of what the early investors are seeking.
Hope this helps,
Sass