Mark Jaffe

Ruling is based on statute used just 3 times in 21 years allowing regulators to override local land use decisions on electric infrastructure projects

Some utilities have joined a regional wholesale power market, a first for the state, and La Plata Electric quits Tri-State

So-called large-load customers could make up most of the new demand for electricity in Xcel’s Colorado service area in 5 years

A renewable energy building boom is changing the landscape — and the economic fortunes — on Colorado’s Eastern Plains

Xcel Energy has until April 15 to present a plan for dealing with the projected electricity shortfall during the hottest days of summer

Some environmental groups say the penalty doesn’t reflect the damage Chevron caused in largest well blowout in a decade

It's a tall order for Colorado utilities regulators: slow electric bill hikes while cutting pollution and promoting economic development

Coal-burning plants in Pueblo and Hayden were to phase out by 2030. Now the company has proposed running all the units for 4 more years.

Colorado drivers will also see price increases in a few weeks with the annual switch to less-polluting summer gas mix.

Christopher Wheeldon’s interpretation of “A Midsummer Night’s Dream” returns to the Ellie Caulkins Opera House for 7 performances