North Valmy Station

From Global Energy Monitor

North Valmy Station is a 567.0-megawatt (MW) coal-fired power station operated by NV Energy near Valmy, Nevada.


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Plant Data

  • Owner: Idaho Power 50%[1], NV Energy 50%[2]
  • Parent Company: Berkshire Hathaway (NV Energy),
  • Plant Nameplate Capacity: 567.0 MW (Megawatts)
  • Units and In-Service Dates: Unit 1: 277.2 MW (1981), Unit 2: 289.8 MW (1985)
  • Location: Interstate 80 Exit 212, Valmy, NV 89438
  • GPS Coordinates: 40.881128, -117.152320
  • Technology: Subcritical
  • Coal type: Sub Bituminous
  • Coal Consumption:
  • Coal Source: Black Butte/Leucite Hills Mine (Black Butte Coal), Skyline Complex Mine 3 (Wolvering Fuells LLC), West Elk Mine (Arch Coal) [3]
  • Number of Employees:
  • Unit Retirements: Unit 1 is scheduled for retirement in 2021, and Unit 2 in 2025.[4]

Peak Energy Demand Production

As of 2017 the coal plant operates primarily to meet peak energy demand in the summer but remains idle through much of the year.[5][6]

Unit Retirements

In 2018 it was reported that Unit 1 is planned for retirement in 2021, and unit 2 in 2025.[7][8][4]

EIA 860m database has both units scheduled for retirement in 2025.[9]

Emissions Data

  • 2006 CO2 Emissions: 3,839,339 tons
  • 2006 SO2 Emissions: 7,161 tons
  • 2006 SO2 Emissions per MWh:
  • 2006 NOx Emissions: 7,515 tons
  • 2005 Mercury Emissions: 11 lb.

Death and disease attributable to fine particle pollution from North Valmy Station

In 2010, Abt Associates issued a study commissioned by the Clean Air Task Force, a nonprofit research and advocacy organization, quantifying the deaths and other health effects attributable to fine particle pollution from coal-fired power plants.[10] Fine particle pollution consists of a complex mixture of soot, heavy metals, sulfur dioxide, and nitrogen oxides. Among these particles, the most dangerous are those less than 2.5 microns in diameter, which are so tiny that they can evade the lung's natural defenses, enter the bloodstream, and be transported to vital organs. Impacts are especially severe among the elderly, children, and those with respiratory disease. The study found that over 13,000 deaths and tens of thousands of cases of chronic bronchitis, acute bronchitis, asthma, congestive heart failure, acute myocardial infarction, dysrhythmia, ischemic heart disease, chronic lung disease, and pneumonia each year are attributable to fine particle pollution from U.S. coal plant emissions. These deaths and illnesses are major examples of coal's external costs, i.e. uncompensated harms inflicted upon the public at large. Low-income and minority populations are disproportionately impacted as well, due to the tendency of companies to avoid locating power plants upwind of affluent communities. To monetize the health impact of fine particle pollution from each coal plant, Abt assigned a value of $7,300,000 to each 2010 mortality, based on a range of government and private studies. Valuations of illnesses ranged from $52 for an asthma episode to $440,000 for a case of chronic bronchitis.[11]

Table 1: Death and disease attributable to fine particle pollution from North Valmy Station

Type of Impact Annual Incidence Valuation
Deaths 10 $74,000,000
Heart attacks 15 $1,700,000
Asthma attacks 180 $10,000
Hospital admissions 7 $170,000
Chronic bronchitis 7 $2,900,000
Asthma ER visits 9 $3,000

Source: "Find Your Risk from Power Plant Pollution," Clean Air Task Force interactive table, accessed February 2011

Articles and Resources


  1. "Thermal", accessed June 17, 2020
  2. "Pacificorp 10-k 2019" accessed June 17,2020
  3. "EIA 923 March 2020" EIA 923 2020.
  4. 4.0 4.1 Solis, Jeniffer (22 December 2018). "NV Energy to close coal plant, adds solar". Nevada Current. Archived from the original on 30 July 2019.
  5. "Idaho Power intends to pursue closure of Valmy Unit 1 in 2019 and Unit 2 in 2025," Sierra Club, May 4, 2017
  6. "Navajo Generating Station and Air Visibility Regulations: Alternatives and Impacts" (PDF). HDR Engineering, Inc. March 2012. Retrieved November 19, 2012.
  7. "Clean Energy Advocates Celebrate Approval of NV Energy’s Plans to Retire North Valmy Coal Unit Early," Sierra Club, Dec 21, 2018
  8. "2019 Integrated Resource Plan (IRP) Reference Sheet," Idaho Power, Sep 15, 2018
  9. "Preliminary Monthly Electric Generator Inventory", 860m March 2020
  10. "The Toll from Coal: An Updated Assessment of Death and Disease from America's Dirtiest Energy Source," Clean Air Task Force, September 2010.
  11. "Technical Support Document for the Powerplant Impact Estimator Software Tool," Prepared for the Clean Air Task Force by Abt Associates, July 2010

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