I think it’s unreasonable to say it’s fossil fuel propaganda. I like having shade and coverage in a car parking lot.
It’s not that the solar covering is just for solar power, but it’s a convenient pitch to combine the use cases where sure, solar covering parking is more expensive than solar straight on the ground, and sure, a plain covering is cheaper than a solar covering, but right now the lots are uncovered bits of asphalt that could be better.







Because it can be a pretty steep hit to power output/efficiency compared to angling them to face the sun.
Cost per watt is significantly higher this way compared to what you generally see. It allows more sharing of sun between other uses and solar, but it comes at the expense of not letting the solar get as much sun for the same panel cost.