Coal-Fired Plants in Colorado
Arapahoe
Location: CO
Operator: Xcel Energy
Configuration: 3 X 45 MW, 1 X 110 MW
Operation: 1950-1955 (ret)
Fuel: bituminous coal, gas
Boiler supplier: B&W
T/G supplier: GE, Westinghouse
Quick facts: Unit-1 went online on 7 Oct 1950, followed by Units 2&3 in Mar and Nov 1951 and by Unit-4 in Aug 1955. The plant closed on 31 Dec 2013.

Photograph courtesy of Colorado Geological Survey
Posted 8 Nov 2014

Cherokee
Location: CO
Operator: Xcel Energy
Configuration: 1 X 107 MW, 1 X 152 MW, 1 X 106 MW, 1 X 350 MW
Operation: 1957-1968
Fuel: bituminous coal, subbituminous coal, gas
Boiler supplier: B&W, CE
T/G supplier: GE, Westinghouse
Quick facts: Cherokee was upgraded as part of the Denver Metro Emissions Reduction Program (MERP).

Photograph by C Bergesen
Posted 29 Jun 2003

Comanche 1&2
Location: CO
Operator: Xcel Energy
Configuration: 2 X 350 MW
Operation: 1973-1975
Fuel: subbituminous coal
Boiler supplier: B&W, CE
T/G supplier: Westinghouse
EPC: Stearns-Roger
Quick facts: The power station is ¼mi from Evraz Steel Mill in Pueblo, the single largest commercial account for Xcel Energy in Colorado and the only direct electric customer in the immediate area. All other electricity that Comanche generates is sold to the grid.

Photograph courtesy of Power
Posted 25 Feb 2006

Comanche-3
Location: CO
Operator: Xcel Energy
Configuration: 820 MW
Operation: 2010
Fuel: subbituminous coal
Boiler supplier: Alstom
T/G supplier: MHI, Melco
EPC: Shaw, Alstom, UTEC
Quick facts: This is the largest generating unit in Colorado and is jointly-owned with two coops, Intermountain Rural Electric Assoc (24%) and Holy Cross Energy (8%). All permits for Comanche-3 were received in Sep 2005 and the plant was synchronized on 6 Jul 2010. The new, air-cooled supercritical unit burns PRB coal as do the two existing sets at the site. Coal burn for the expanded plant will be about 5.5mn tpy. The project cost including new transmission was $1.4bn. Up to 2,400 construction workers were on the job. The stack is 500ft tall.

Photograph courtesy of Alstom
Posted 24 Oct 2010

Craig
Location: CO
Operator: Tri-State G&T Association
Configuration: 2 X 428 MW, 1 X 408 MW
Operation: 1979-1984
Fuel: subbituminous coal
Boiler supplier: B&W
T/G supplier: GE
EPC: Stearns-Roger, Stanley
Quick facts: Units 1&2, known as the Yampa Project, are owned by Tri-State and four other regional utilities. Tri-State is the sole owner of Unit-3. In early 2002, a $105mn, multiyear environmental retrofit was started on Units 1&2 to address opacity concerns and particulate emissions.

Photograph courtesy of Tri-State G&T Association
Posted 16 Feb 2005

Hayden
Location: CO
Operator: Xcel Energy
Configuration: 1 X 190 MW, 1 X 257 MW
Operation: 1965-1976
Fuel: bituminous coal
Boiler supplier: RS, CE
T/G supplier: Westinghouse
EPC: Stanley, Stearns-Roger
Quick facts: Hayden has three owners, with operational responsibilities held by Xcel Energy. Ownership is as follows: Unit 1 – Xcel Energy (75%), PacifiCorp (24.5%), Unit 2 – Salt River Project. (50%), Xcel (37.4%) and PacifiCorp (12.6%). Hayden was acquired by Public Service Co of Colorado and the other owners in 1992 from Colorado-Ute Electric Association. Coal supply is from Peabody Coal's Twentymile mine.

Photograph courtesy of wwww.pennenergy.com
Posted 27 Apr 2014

Lamar Rebuild
Location: CO
Operator: Arkansas River Power Authority
Configuration: 1 X 25 MW, 1 X 18 MW
Operation: 1972-2008
Fuel: subbituminous coal
Boiler supplier: B&W
T/G supplier: GE, ABB
Quick facts: Stearns Roger, ForeRunner Corp
Quick facts: In Oct 2005, ARPA decided on a repowering job at the Lamar Power & Light Lamar station to makeup for the expiration of various wholesale power contracts with regional public power authorities. The $120mn job involved adding a B&W CFB boiler to supply a shutdown 25-MW gas and oil-fired steam set plus plus a new 18-MW T/G. Also new is the 227ft stack and an SPX air-cooled condenser shown in front of the boiler house and turbine hall.

Photograph courtesy of Power
Posted 13 Aug 2008

Martin Drake
Location: CO
Operator: Colorado Springs Utilities
Configuration: 1 X 59 MW, 1 X 88 MW, 1 X 147 MW
Operation: 1962-1974
Fuel: subbituminous coal
Boiler supplier: B&W, Riley Stoker
T/G supplier: GE, Westinghouse

Photograph by C Bergesen
Posted 4 Jul 2004

Nucla
Location: CO
Operator: Tri-State G&T Association
Configuration: 3 X 12 MW, 1 X 64 MW
Operation: 1959-1987
Fuel: bituminous coal
Boiler supplier: Springfield, Pyropower
T/G supplier: Delaval, WH
EPC: Stearns-Roger
Quick facts: In 1987, Nucla was retrofit with one of the first large-scale ACFB boilers in the USA.

Photograph courtesy of Tri-State G&T Association
Posted 16 Feb 2005

Pawnee
Location: CO
Operator: Xcel Energy
Configuration: 1 X 500 MW
Operation: 1981
Fuel: coal
Boiler supplier: FW
T/G supplier: GE
EPC: Stearns-Roger, Ebasco
Quick facts: Pawnee was built with an elaborate coal-blending system to enable it to meet applicable emission regulations.

Photograph by C Bergesen
Posted 5 Jun 2003

Rawhide
Location: CO
Operator: Platte River Power Authority
Configuration: 1 X 274 MW
Operation: 1984
Fuel: subbituminous coal
Boiler supplier: CE
T/G supplier: WH
EPC: Black & Veatch
Quick facts: After over 4yrs of construction, Rawhide went commercial on 31 Mar 1984. The plant supplies electricity to the cities of Estes Park, Fort Collins, Longmont, and Loveland, municipalities that formed PRPA in 1973. The plant has some of the lowest SO2 emissions of any U.S. power plant. Hamilton Reservoir was built to supply cooling water and is recharged by treated wastewater from Fort Collins. The stack is 505ft tall. Rawhide is thought to be the only power plant in the USA with a bison herd, a group of about 50 animals descended from the herd at Custer State Park in South Dakota.

Photograph courtesy of Power
Posted 1 Nov 2008

Ray D Nixon
Location: CO
Operator: Colorado Springs Utilities
Configuration: 1 X 230 MW
Operation: 1980
Fuel: bituminous coal
Boiler supplier: B&W
T/G supplier: GE
EPC: Lutz Daily & Brain

Photograph by C Bergesen
Posted 4 Jul 2004

 
Valmont-5
Location: CO
Operator: Xcel Energy
Configuration: 1 X 186 MW
Operation: 1964
Fuel: coal, natural gas
Boiler supplier: CE
T/G supplier: AC
Quick facts: Construction on Valmont began in 1921 and the first unit went into service in 1924. After Unit-4 was commissioned in 1942, Valmont became the largest power station west of the Missouri River. The four oldest units were retired in 1986. The 900ac site is an important regional wildlife refuge.

Photograph by C Bergesen
Posted 7 Jun 2003

WH Clark
Location: CO
Operator: Black Hills Energy
Configuration: 1 X 16.5, 1 X 22 MWMW
Operation: 1955-1959 (ret)
Fuel: subbituminous coal, natural gas
Boiler supplier: B&W
T/G supplier: GE
Quick facts: This power plant is in Cañon City. It was closed on 31 Dec 2012. It is named after W N Clark, long-time president and general manager of Southern Colorado Power Co.

Photograph by Tracy Harmon courtesy of www.chieftain.com
Posted 12 Jan 2013

Abbreviations

Data: industcards, Platts UDI World Electric Power Plants Data Base

Updated 08-Nov-2014

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