Intermountain Power Plant

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Intermountain Power Plant
IntermountainPowerProjectByPhilKonstantin.jpg
Intermountain Power Plant
Intermountain Power Plant is located in Utah
Intermountain Power Plant
Location of the Intermountain Power Plant in Utah
Country United States
Location Delta, Utah
Coordinates 39°30′27″N 112°34′49″W / 39.50750°N 112.58028°W / 39.50750; -112.58028Coordinates: 39°30′27″N 112°34′49″W / 39.50750°N 112.58028°W / 39.50750; -112.58028
Status Operational
Construction began September 1981
Commission date June 1986
Construction cost US$4.5 billion
Owner(s) Intermountain Power Agency
Operator(s) Los Angeles Department of Water and Power
Power generation
Primary fuel Coal
Units operational 2 X 950 MW
Make and model GE
Babcock & Wilcox
Nameplate capacity 1,900

Intermountain Power Plant is a large coal-fired power plant at Delta, Utah, USA. It has an installed capacity of 1,900 MW, is owned by the Intermountain Power Agency, and is operated by the Los Angeles Department of Water and Power.[1][2][3]

The power plant consists of two units each with a generation capacity of 950 MW.[3] Generating units are equipped with General Electric tandem compound steam turbines and Babcock & Wilcox subcritical boilers.[2] The boiler houses of Intermountain Power Plant are 91.75 metres (301.0 ft) and the flue gas stack is 213.67 metres (701.0 ft) tall. The HVDC Intermountain transmission line runs between Intermountain Power Plant and Adelanto, California.[2]

Construction on the plant began in September 1981. Commercial operation of unit 1 started in June 1986, and unit 2 in May 1987. The project cost US$4.5 billion.[4][5] When built, it was the largest coal-fired power project in the United States.[4] In 2004, units 1 and 2 were uprated.[6] These works were conducted by GE and Alstom.[2] The plant was originally designed for four units; however, only two units were built.[6] The Intermountain Power Agency planned to build the third unit of 900 MW capacity. This unit was expected to go online in 2012; however, the project was cancelled after its major purchaser, the city of Los Angeles, decided to become "coal free" by 2020.[7][8]

On December 28, 2011, one of the generators failed causing the shut-down of one unit for several months.[9]

The power plant is one of the largest emitters of nitrogen oxide, a pollutant that contributes to haze, in the Western United States.[citation needed] Some[who?] have criticized the power plant for selling over 80% of its output to California while the pollution from the power plant largely affects Utah.[citation needed][10]

Conversion to natural gas[edit]

The plant is scheduled to be converted to natural gas by 2025 at a cost of $500 million.[11]

References[edit]

  1. ^ Broder, John M. (2011-06-13). "E.P.A. Delays Rule on Power Plant Emissions". The New York Times. Retrieved 2012-02-19. 
  2. ^ a b c d "Intermountain Generating Station". Power Engineering (Pennwell Corporation). 2002-08-01. Retrieved 2012-02-19. 
  3. ^ a b "About Us". Intermountain Power Agency. Retrieved 2012-02-19. 
  4. ^ a b "Biggest Coal Power Plant Planned". Miami News. 1979-12-20. Retrieved 2012-02-19. 
  5. ^ Stall, Bill (1977-08-10). "Utah Panel to Study Power Plant Impact". Los Angeles Times. (subscription required). Retrieved 2012-02-19. 
  6. ^ a b "Coal-Fired Power Plants in Utah". Industcards. Retrieved 2012-02-19. 
  7. ^ Bravender, Robin (2009-07-09). "Los Angeles' 'Coal Free' Vow Scuttles Utah Power-Plant Expansion". The New York Times. Retrieved 2012-02-19. 
  8. ^ "IPA scraps 900 MW coal-fired generating station". Power Engineering (Pennwell Corporation). 2009-09-03. Retrieved 2012-02-19. 
  9. ^ Hollenhorst,, John (2012-02-17). "'Major' breakdown cripples IPP for 6 months". Deseret News. Retrieved 2012-02-19. 
  10. ^ Judy Fahys (2012-05-24). "Power plant pollution ranks high in Utah, the West". The Salt Lake Tribune. Retrieved 2013-05-20. 
  11. ^ Kate Linthicum (April 23, 2013). "L.A. City Council votes to move away from coal-fired energy". The Los Angeles Times. Retrieved April 24, 2013.