Colorado Springs Utilities has committed to closing the coal-fired portions of the Martin Drake Power Plant by 2023 -12 years earlier than originally planned - and investing significantly more in renewable energy. The Ray Nixon plant, south of the city, will be converted to non-carbon resources by 2030. The goal is for the utility to achieve 80 percent carbon reduction by 2030, as called for under new state rules made last year, and set a course for 90 percent renewable energy generation by 2050