So here’s a thought experiment:
There are about 16,000 square miles of highway in the United States. I know that because I looked it up.
To fully power the United States with solar energy, it would take about 22,000 square miles of solar collectors. I know that because I looked it up.
If we cover all of those highways with solar collectors, they could provide more than two thirds of our nation’s electrical power needs.
Like I said, just a thought.