Or dumb questions.
Reflecting and concentrating solar energy does not, and cannot "create or destroy" energy or heat. It can only redistribute the normal heating-cooling cycle.
If the mirrors weren't there, the heat exchange would still be there, albeit at a different rate. Net change, zero.
Years back, I read an article by a University of Ottawa prof about the reflective cooling effect of ultra-large solar arrays.
It ran very counter to the political correctness gobblygook about solar energy.