About a dozen miles south of Colorado Springs, a smokestack rises from a cluster of boxy beige buildings, flanked by a giant mound of coal and a web of metal power lines. Built in 1980, the Ray D.

A group known as the Arkansas Advanced Energy Association is forecasting that the state will begin to face an energy shortage in 2026 and by 2035 the shortage could become critical, risking 2-3 times ...