Colo. regulators open proceedings on clean-air law |

Colo. regulators open proceedings on clean-air law

DENVER – State regulators are moving quickly to put in place a new law requiring Denver-area power plants to cut pollution and greenhouse gas emissions.

The Colorado Public Utilities Commission opened proceedings Wednesday on the law, just two days after Gov. Bill Ritter signed the legislation.

Xcel Energy, Colorado’s largest utility, and Black Hills Energy must come up with plans to reduce pollutants and carbon dioxide emissions over the next seven years. The utilities must consider replacing coal-fired power plants with ones using natural gas.

The utilities commission will also take input from other parties as they consider the plans. PUC Chairman Ron Binz says regulators’ decision in the case will affect air quality and electric rates for years.

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