DENVER -- The Colorado Court of Appeals has dismissed lawsuits against three companies in the deaths of five workers at a power plant in 2007. The ap...

DENVER -- It could be midday Thursday before electricity is restored to everyone who lost power in the Denver area after powerful winds. Xcel Energy ...

DENVER — A powerful wind storm knocked out electrical service to about 50,000 customers in the Denver area and in northern Colorado, and about 2...

In tackling Xcel's new Electric Resource Plan (ERP) for Colorado, Clean Energy Action confirmed that future expenses on fuels like coal and natural gas are being discounted, and aggressively so.

DENVER — A California specialty painting company pleaded guilty Monday to five counts of violating federal workplace safety rules that resulted ...

Our children's climate is being pushed over a cliff. This is the time to pay even more attention to Xcel's emissions, and New Era Colorado is up to the task.

A proposed powerline that had been billed as a referendum on Colorado's 'New Energy Economy' may be on the chopping block Tuesday after Xcel Energy do...

While the nation salivates -- or trembles -- at the thought of how the Occupy Wall Street movement will affect elections for years to come, an Occupy-style ballot initiative is being voted on in Boulder.

In just three weeks, citizens of Boulder, CO, will vote on whether to begin a big, formal process to unplug from Xcel Energy's system and plug into local energy self-reliance.

Scott Evans, a Denver dog owner, has filed suit against Xcel Energy and several contractors after his dog Asha was electrocuted walking through an unm...

DENVER (Reuters) - Public utility Xcel Energy Inc. (XEL.N) and a subsidiary were acquitted on Tuesday of criminal charges stemming from a fire tha...

Colorado's renewable energy prospects are looking bright. And with the opening of the largest solar research facility in the United States yesterday,...

DENVER -- A criminal trial in the deaths of five workers at a Colorado hydroelectric plant began Tuesday in the rare prosecution of a company. Xcel E...

If Xcel proposes "business as usual" with its exposure to fossil fuels and a rate hike of 33 percent in nine years, Boulder's case for municipalization becomes starkly stronger.

Boulder city staff have formally defined the parameters of Boulder's quest for a clean energy future, with or without Xcel Energy.

Xcel Energy said Wednesday that it is cutting the financial incentives it offers to customers for solar-energy installations. In addition, the util...

The Colorado Public Utilities Commission has approved construction of a $180 million, 150-mile power transmission line from the San Luis Valley to the...

DENVER — Colorado regulators are split on Xcel Energy's plan for cutting air pollution from coal-fired power plants by 2018. The Public Utiliti...

Reclusive billionaire Louis Moore Bacon is emerging from the shadows in a southern Colorado showdown over solar-power transmission lines. One side ...

Recent decisions by utilities in Colorado and Arizona serve as prime examples of how smart energy policies can benefit the region's water resources.

DENVER — Xcel Energy's plan to retire about 900 megawatts of coal-fired power generation by 2022 is off the table, as it focuses on doing it by ...

DENVER — State regulators issued written orders Wednesday that would leave no coal-burning power plants in the Denver area after 2017. The Colora...

ALBUQUERQUE, N.M. — New Mexico's largest electric utility filed a notice of appeal Tuesday to the state's new cap-and-trade program. Public Ser...

A plan by Xcel Energy to shut down coal-fired power plants can't meet Front Range clean-air goals and a 2017 deadline, state health officials said Mon...

There are energy options for municipalities like Boulder to get more direct authority over the energy supply. With or without the help of Xcel Energy.