CPS Energy

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CPS Energy
Municipal corporation
HeadquartersSan Antonio, Texas, USA
Key people
Paula Gold-Williams (President & CEO)
ProductsElectricity and Natural Gas
RevenueIncrease$2.5 billion USD (2016)
Number of employees
3,100 (2016)

CPS Energy (formerly "City Public Service") is the municipal electric utility serving the city of San Antonio, Texas. Acquired by the City in 1942, CPS Energy serves over 840,750 electricity customers and more than 352,585 natural gas customers in its 1,566-square-mile (4,060 km2) service area, which includes Bexar County and portions of its 7 surrounding counties.[1]


  • 1917 - San Antonio Public Service Company formed; owned by American Light and Traction
  • 1942 - City purchases SAPSCo for $34 million[2]
  • 2010 - J.K. Spruce 2 begins operation with more than $250 million of the best available emissions-control equipment
  • 2012 - Rio Nogales, a combined-cycle natural gas plant in Seguin, is acquired as part of strategic plan to increase low carbon fuels, and to proactively save half-a-billion dollars by not investing in Deely, the oldest coal-fired unit
  • 2017 - CPS Energy celebrated 75 years of being owned by the City of San Antonio.
  • 2018 - CPS Energy decommissioned J.T. Deely #1 and #2 Coal fired power plants in late December, ending 42 years of service.

Generation Sources[edit]

As of May 2015, CPS Energy had 1,059 megawatts of wind and 444 megawatts of solar power under contract.[3]

Plant Name[4][5][6][7] Type Rated Capacity Year Completed Cost Notes
Blue Wing Solar Project Solar-PV 14.4 MW 2010 Partner with Duke Energy
South Texas Project Unit 1 Nuclear 1250 MW 1987 $2.25 Billion 40% Owner with NRG Energy and City of Austin
South Texas Project Unit 2 Nuclear 1250 MW 1988 $2.25 Billion 40% Owner with NRG Energy and City of Austin
J.K. Spruce Power Plant Unit 1[8] Coal-Fired 556 MW 1992 At Calaveras Lake
J.K. Spruce Power Plant Unit 2 Coal-Fired 780 MW 2010 $1 Billion At Calaveras Lake; Design Capacity was 750MW, Analysis revealed capable of 780MW
J.T. Deely Power Plant Unit 1 Coal-Fired 486 MW 1977 At Calaveras Lake; Decommission in December 2018[9]
J.T. Deely Power Plant Unit 2 Coal-Fired 446 MW 1978 At Calaveras Lake; Decommission in December 2018[9]
O. W. Sommers Natural Gas 892 MW At Calaveras Lake
Leon Creek Power Plant Natural gas 417 MW First unit began operation in 1949
Desert Sky Wind Farm Wind 160.5 MW 2001 Owned by American Electric Power, but CPS buys all the power.
Rio Nogales[10] Natural gas 800 MW 2002 Located in Seguin, Texas. Purchased in 2012 to replace 871 MW two-unit coal-fired J.T. Deely.
Braunig Power Station[11] Natural gas 1138 MW 1966 Located at Victor Braunig Lake

Former: W.B. Tuttle power plant, 425 MW, 1954-2011, natural gas, demolished.[12][13]

Governing Structure[edit]

CPS Energy is governed by a five-member Board of Trustees. The Mayor of San Antonio serves as an ex officio member, for as long as s/he is the Mayor. Each of the other four members represents a geographical quadrant within the City, and must reside within that quadrant. They are nominated by the remaining trustees for a five-year term, with eligibility to serve one additional term. The nominations must be approved by majority vote of the San Antonio City Council.

In addition, a 15-member Citizens Advisory Committee serves as a liaison between CPS Energy and the citizens of San Antonio. Ten of the members are nominated by the ten City Council members (one from each district), while the remaining five are chosen from applicants who are interviewed by the Board. The Board approves all fifteen members, who must reside in the CPS Energy service territory and be customers of CPS Energy as well.

[14] [15]

See also[edit]


  1. ^ a b "CPS Energy - Who We Are". Archived from the original on 2008-12-04. Retrieved 2009-04-10.
  2. ^ "History of CPS Energy". Archived from the original on 2010-01-02. Retrieved 2009-04-10.
  3. ^ City buying CPS heralded brighter future, San Antonio Express-News
  4. ^ [1] Archived 2010-12-14 at the Wayback Machine, Energy Energy Generation and Delivery | Retrieved 2011-03-18
  5. ^ [2], CPS Energy to christen first solar plant | Retrieved 2011-03-18
  6. ^ [3], JK Spruce Station | Retrieved 2011-03-18
  7. ^ [4], JT Deely Stations | Retrieved 2011-03-18
  8. ^ Coal Plant Losing Money, But CPS Energy is Keeping it – For Now
  9. ^ a b Acosta, Sarah (January 3, 2019). "CPS Energy closes coal-fired Deely plant in operation since '70s to focus on cleaner energy sources". KSAT-TV. Retrieved January 4, 2019.
  10. ^ Gas-fired power plant purchased by CPS Energy, Mar 13, 2012
  11. ^ Plant that powered San Antonio’s postwar population boom makes room for future
  12. ^ CPS Energy demolishes boiler at former W.B. Tuttle natural gas power plant
  13. ^ A final farewell to CPS Energy’s W.B. Tuttle natural gas plant, Sam Taylor and Pam Maris, October 11, 2013]
  14. ^ CPS Energy website "History of CPS Energy" Archived 2010-12-14 at the Wayback Machine, Retrieved on Jan. 20, 2011.
  15. ^ CPS Energy website "2009-2010 Financial Summary" Archived 2010-12-14 at the Wayback Machine, Retrieved on Jan. 20, 2011.
  16. ^ Corporate Fact Sheet. cpsenergy.com: CPS Energy. 2016.

External links[edit]