An aerial view of the Prairie Island Nuclear Power Plant, near Red Wing, Minnesota along the Mississippi River. The two pressurized water reactors produce approximately 1,100 megawatts. (BanksPhotos via Getty Images)If Minnesota doesn’t lift its 32-year-old ban on new nuclear power reactors soon, it could blow through a self-imposed 2040 deadline to clean up its electric grid. That was one of the messages hammered home by a bipartisan group of l…