J.T. Deely Station

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J.T. Deely Station was a coal-fired power station operated by CPS Energy, which in turn is owned by the City of San Antonio, Texas.


Pictured below are the Spruce, Deely, and Sommers plants, all of which belong to the City of San Antonio.

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Plant Data

  • Owner: CPS Energy
  • Parent Company: City of San Antonio, Texas
  • Plant Nameplate Capacity: 932 MW (Megawatts)
  • Units and In-Service Dates: 486 MW (1977), 446 MW (1978)
  • Location: 9599 Gardner Rd., San Antonio, TX 78263
  • GPS Coordinates: 29.307203, -98.320198
  • Coal Consumption:
  • Coal Source:
  • Number of Employees:
  • Unit Retirements: Both units are out of service according to EIA 860 database with retirement scheduled for December 2024[1].

Unit Retirement

In June 2011, CPS Energy announced it planned to close Deely Station in 2018.[2] The plant was retired on December 31, 2018.[3]

The coal plant was deactivated on December 31, 2018.[4]

San Antonio coal plant to be 1st in Texas to close

In June 2011 CPS Energy announced that its San Antonio based J.T. Deely Station would be shut down in 2018. The coal-fired power plant that supplied electricity in San Antonio since the 1970s. The CPS Deely plant is the first publicly-owned coal plant announced to retire in Texas.

According to the president of CPS Energy, Doyle Beneby, their plans will cut emissions of sulfur dioxides by 85%, nitrus oxide by 30%, carbon dioxides by 25%, and mercury by 58% by the time the plant closes.

"Closing Deely coal plant and transitioning to a clean energy economy will be a tremendous benefit for San Antonio," according to a joint news release released by the Sierra Club, SEED Coalition, and Public Citizen.[2]

Emissions Data

  • 2006 CO2 Emissions: 9,363,706 tons
  • 2006 SO2 Emissions:
  • 2006 SO2 Emissions per MWh:
  • 2006 NOx Emissions:
  • 2005 Mercury Emissions:

Death and disease attributable to fine particle pollution from Deely 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.[5] 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.[6]

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

Type of Impact Annual Incidence Valuation
Deaths 14 $100,000,000
Heart attacks 21 $2,300,000
Asthma attacks 280 $14,000
Hospital admissions 10 $230,000
Chronic bronchitis 9 $4,200,000
Asthma ER visits 14 $5,000

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

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