When the coal-fired power plant just outside the tiny town of Nucla, Colorado, closed in 2019, it had the makings of a disaster. The plant, which opened in 1959, shut down three years ahead of schedule when it ran out of coal, leaving the town shocked and facing the loss of its largest employer. The facility provided nearly half the tax revenue to the region... ....The huge Navajo Generating Station in northern Arizona, within the Navajo Nation, also shut down in 2019. Local leaders complained that plant operators closed the facility decades ahead of schedule, although the region did have...