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Coal

Costs to decide when TEP plant gets off coal

Costs to decide when TEP plant gets off coal

Environmentalists continue to push for a coal-free plant in Tucson.

July 24, 2014 12:00 amLoading…
Mine Tales: State's history of coal mining goes back at least 700 years

Mine Tales: State's history of coal mining goes back at least 700 years

People have mined coal in Arizona for at least 700 years, but today the only active mine in the state is the Kayenta Mine at the Black Mesa field on the Colorado Plateau in Northeastern Arizona.

May 12, 2014 12:00 am Photos

Photos

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TEP to shed part of coal-fired plant, use more natural gas

TEP to shed part of coal-fired plant, use more natural gas

Tucson Electric Power says it's diversifying its energy portfolio by getting less power from a coal-fired plant in eastern Arizona while moving to expand its purchases of power generated by natural gas.

September 05, 2013 10:12 amLoading…

Groups want new standards for coal plant discharges

Report says many coal-fired plants allowed to discharge unlimited amount of toxic pollutants 

July 23, 2013 10:21 am Related Loading…

Business Briefs

Arizona

February 01, 2013 12:00 amLoading…
Prairie State coal-fired power plant

Prairie State coal-fired power plant

A view of Illinois' Prairie State power plant, which is the largest coal-fired plant built in the United States in the last 30 years.  (Tim Vizer/Belleville News-Democrat/MCT)

January 18, 2013 9:39 amLoading…

EPA imposes new emission limits on Ariz. power plants

FLAGSTAFF - The U.S. Environmental Protection Agency has prescribed new pollution limits on three coal-fired Arizona power plants, aiming to protect the environment and air quality for wilderness areas and landmarks such as the Grand Canyon.

November 17, 2012 12:00 amLoading…

Enviros: Put TEP plant under haze rule

Environmental groups want federal regulators to place a partly coal-fired power plant in Tucson under regional regulations designed to curb regional haze.

October 14, 2012 12:00 amLoading…

Sierra Club joins call for TEP to stop burning coal locally

The Sierra Club has joined an effort to get Tucson Electric Power Co. to quit burning coal at a Tucson-area power plant.

September 14, 2012 11:29 amLoading…

Climate-change group presses Tucson Electric on coal

A local environmental group pressed its demand that Tucson Electric Power Co. stop burning coal at a local power plant today, with a lunchtime demonstration and leafleting at the downtown headquarters of TEP parent UNS Energy Corp.

August 09, 2012 2:05 pmLoading…

4 Corners plant gets 2 options to cut smog

FLAGSTAFF - The U.S. Environmental Protection Agency has issued its final rule aimed at cleaning up the largest single source of haze-causing pollutants in the country.

August 09, 2012 12:00 amLoading…

EPA sets final rules for Four Corners power plant

FLAGSTAFF — The U.S. Environmental Protection Agency has issued its final rule aimed at cleaning up the largest single source of haze-causing pollutants in the country.

August 08, 2012 1:05 pmLoading…

Protesters urge Tucson Electric Power to stop burning coal

With natural gas prices at their lowest levels in years, Tucson Electric Power Co. hasn’t been burning coal at its south-side power plant lately.

May 03, 2012 9:00 pmLoading…

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