The day after the filing announcing the Colorado debt, Minnesota-based parent company Xcel submitted another SEC filing ...

The legislation signals a shifting view of nuclear energy amid rapid climate change and growing energy demand.

President Donald Trump has called for the expansion of U.S. coal production, claiming that an increase of "clean" coal produced in the U.S. will soon take place.

As communities across Colorado struggle with the challenges of transitioning from coal-fired power plants to cleaner energy ...

SunTrain wants to use the existing freight rail system to transport clean energy from wind farms and solar arrays to the grid ...

Meanwhile, Colorado’s existing coal plants — slated for closure by 2031 — currently provide stable, 24/7 power. Replacing them with weather-dependent renewables risks repeating Germany’s mistakes, ...

Xcel Energy says it will be increasing the clearance between trees and power lines from 6 feet to 10 feet, but the decision doesn't sit well with some.