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Colorado’s three-member Public Utilities Commission gave its approval on Monday to a proposed $2.5 billion investment in solar, wind and natural gas power…

Xcel Energy, Colorado’s largest power provider, wants to make $500 million to install smart meters and make other upgrades to its electricity system to…

Unlike fossil fuels, wind energy is booming.Xcel Energy has announced a proposal with Denmark-based Vestas Wind Systems to build a 300 turbine project in…

A coal mine in Delta County announced Wednesday it is laying off 150 workers, over 40 percent of its workforce. The Bowie #2 mine layoffs follow the…

Xcel Energy just cranked open a new, 34-mile-long natural gas pipeline.The $110 million underground pipeline crosses under the South Platte River, nine…

The cost of solar is falling rapidly – down 60 percent since 2011. These days, solar is not only good for the environment; it's becoming more of a smart…

The Obama administration said Monday that it intends to aggressively reduce carbon-dioxide emissions, or greenhouse gas pollution, produced by power…

Boulder officials have taken a significant step toward bringing the electric grid under city management. City officials sent a notice of intent to current…

A dispute between rooftop solar advocacy groups and Xcel energy over net metering continues to heat up. Nearly 30,000 signatures were delivered to Xcel ’s…

Forget fracking. When it comes to a high-stakes and costly battle about energy on the Boulder ballot, it’s dueling questions 310 and 2E that will chart…