Why would you need to dedicate the output to a specific goal? We already have a good target for all new renewable energy facilities - to reduce the need for fossil fuel. Just feed it back to the power grid.

Also - are you suggesting to "Make the parking lot only partly covered" just because want to give EVs the better (shaded) spots? Seems like a waste of the extra energy you could get by covering the entire lot...

I'm not sure photovoltaics would generate enough juice to recharge a vehicle during 30-60 minute shopping trip. Certainly not on the current iteration of electric vehicle charging capacity.

This is a good use of space and a potentially beneficial way to generate power for the storefront (AC and refrigeration during peak hours are real electricity hogs and would tie out with available sunlight), but idk how effective it would be at recharging vehicles. Not unless the space also has large reserve batteries that can discharge rapidly, and the solar cells were exceptionally efficient at generating wattage.

This is, incidentally, why wind plants get you more bang for your buck than solar plants. The supermassive turbines out along the Corpus Christi coastline can generate north of 3 MW/h. Meanwhile, you'd need 75,000 sqft of 200-watt 5' panels to generate an equivalent. Electric car batteries hold somewhere between 40-100 kWh of power. So getting the math to work is a bit tricky.