Tri-State Generation and Transmission Association this week said it will close the coal-fired Nucla Station as soon as its on-site fuel supply is spent, likely in early 2020. The massive power company also plans to retire a coal-fired electric generation unit at Craig Station by the end of 2025. (William Woody, Special to The Colorado Sun)

Tri-State, under pressure from its member co-ops to change or fall behind, is shifting to renewable energy

Giant power provider on the verge of deal with departing utility says it will shutter coal-fired plant in Nucla two years early as it retools carbon-emissions goals.

Energy Primary category in which blog post is published
Environment Primary category in which blog post is published

Wildlife roam where U.S. once made nuclear and chemical arms, like at Colorado’s Rocky Mountain Arsenal and Rocky Flats

An astonishing array of animals and habitats flourished on six obsolete weapons complexes — mostly for nuclear or chemical arms — because the sites banned the public and other intrusions for decades

Energy Primary category in which blog post is published

Fearing Tri-State could duck clean-energy goals, Colorado utilities commission files unprecedented protest

For the first time in at least 25 years, state regulators move to stop a migration, saying the interstate power provider has too much unfinished business here