Xcel Energy on Saturday was continuing to fix a problem with a control valve at its Monticello nuclear power plant that was ...

The wholesale price of natural gas has gone up, which means the monthly bills of Xcel Energy-Colorado customers will likely ...

Those potential benefits have caught the attention of local leaders in Pueblo, a community bracing for the loss of Comanche ...

The Chippewa Sun solar array at the intersection of 143rd Street and 40th Avenue in the town of Hallie is now operational, ...

President Donald Trump has called for the expansion of U.S. coal production, claiming that an increase of "clean" coal ...

Many of the nation’s largest electric utilities are not on track to achieve their interim emission reduction goals or the ...

The Comanche Generating Station, a coal-fired power plant owned by Xcel Energy. Jim West/UCG/Universal ... combustion – it will always emit the largest concentration of greenhouse gases of ...