Calaveras Power Station | |
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Official name | J.T. Deely Power Plant O.W. Sommers Power Plant J.K. Spruce Power Plant |
Country | United States |
Location | Bexar County, near San Antonio, Texas |
Coordinates | 29°18′27″N98°19′26″W / 29.30750°N 98.32389°W |
Status | Operational |
Commission date | J.T. Deely Power Plant Unit 1: 1977 Unit 2: 1978 O.W. Sommers Power Plant Unit 1: 1972 Unit 2: 1974 J.K. Spruce Power Plant Unit 1: 1992 Unit 2: 2010 |
Decommission date | J.T. Deely Power Plant Units 1–2: December 31, 2018 |
Owner(s) | CPS Energy |
Operator(s) | CPS Energy |
Thermal power station | |
Primary fuel | Coal Natural gas |
Cooling source | Calaveras Lake |
The Calaveras Power Station is a series of power plants located southeast of San Antonio, in Bexar County, Texas, near Calaveras Lake. These plants include the J.T. Deely Power Plant, the O.W. Sommers Power Plant, and the J.K. Spruce Power Plant. They are operated by CPS Energy.
J.T. Deely Power Plant was a two unit, 871 megawatt (MW) coal power plant located at the Calaveras Power Station. They were operated by CPS Energy and ran from 1977 to 2018.
O.W. Sommers is a two unit natural gas power plant with a combined capacity of 892 MW. [1] Unit 1 began commercial generation in 1972 and Unit 2 began in 1974. [2] [3] The plant is named after former CPS General Manager, Otto W. Sommers. [4]
J.K. Spruce is a two unit coal power plant with a combined capacity of 1,300 MW. [5] Construction of Unit 1 was completed in 1992. [6] The plant is named after former CPS General Manager, Jack Spruce. [7] A LO-NOx burner was installed to Unit 1 in 1999 to reduce nitrogen oxide (NOx) emissions. [6] In order to meet future electricity demand, CPS Energy commissioned Unit 2 in 2005 and was completed in 2010 at a cost of $1 billion. [5] The second unit constructed included modern pollution controls such as the installation of a SCR system and flue-gas desulfurization (FGD) system which removed NOx and sulfur dioxide (SO2) respectively. [5] According to a report by Synapse Energy Economics, Spruce operated at an estimated loss of $135 million from 2015 to 2016 as depressed natural gas prices made coal uneconomical to operate. [8] Moody's revealed in a 2018 report that a generator issue at Spruce's Unit 2 has made the unit run at less than half its capacity thereby raising the plant's expenses. [9] In January 2023, CPS Energy's board of trustees voted to shut down Unit 1 and convert Unit 2 to natural gas by 2028, thereby ending the use of coal-fired power generation to power San Antonio's power grid. [10]
The Keystone Generating Station is a 1.71-gigawatt, coal power plant located on roughly 1,500 acres (610 ha) in Plumcreek Township, southeastern Armstrong County, Pennsylvania near Crooked Creek, just west of Shelocta, Pennsylvania.
Calaveras Lake is a reservoir on Calaveras Creek, located 20 miles southeast of Downtown San Antonio, Texas, US. The reservoir was formed in 1969 by the construction of a dam to provide a cooling pond for a series of power plants, called the Calaveras Power Station, to supply additional electricity to the city of San Antonio.
Victor Braunig Lake, formerly known as East Lake, is a reservoir on Calaveras Creek and Chupaderas Creek 17 miles south of Downtown San Antonio, Texas, USA. The reservoir was formed in 1962 by the construction of a dam to provide a cooling pond for a power plant to supply additional electrical supply to the city of San Antonio. Victor Braunig (1890-1982) was an employee from 1910 becoming in 1949 the general manager of the San Antonio City Public Service Board, the predecessor of CPS Energy. The dam and lake are managed by CPS Energy of San Antonio. Together with Calaveras Lake, Braunig Lake was one of the first projects in the nation to use treated wastewater for power plant cooling. The reservoir is partly filled with wastewater that has undergone both primary and secondary treatment at a San Antonio Water System treatment plant. Braunig Lake also serves as a venue for recreation, including fishing and boating.
CPS Energy 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.
Cumberland Fossil Plant is a pulverized coal-fired power station located west of Cumberland City, Tennessee, US, on the south bank of Lake Barkley on the Cumberland River. Owned and operated by Tennessee Valley Authority (TVA), it has a gross capacity of 2,470 MW, and is the most powerful power station in Tennessee.
The W. H. Sammis Power Plant was a 2.23-gigawatt coal power plant in Stratton, Jefferson County, Ohio. The plant was operated by Energy Harbor. It began operations in 1960.
Kingston Fossil Plant, commonly known as Kingston Steam Plant, is a 1.4-gigawatt coal-fired power plant located in Roane County, just outside Kingston, Tennessee, on the shore of Watts Bar Lake. It is operated by the Tennessee Valley Authority. The plant is known for the Kingston Fossil Plant fly ash spill which occurred in December 2008.
The Dickerson Generating Station is an 853 MW electric generating plant owned by NRG Energy, located approximately two miles west of Dickerson, Maryland, on the eastern banks of the Potomac River.
J. Robert Welsh Power Plant is a 1-gigawatt, coal power plant located east of Pittsburg, Texas in Titus County, Texas. It is operated by SWEPCO, a subsidiary of AEP. The plant is named after J. Robert Welsh, a former President and Board Chairman of SWEPCO.
The Victor J. Daniel Electric Generating Plant is a major 2-gigawatt, four-unit fossil fuel power plant, generating about 1 GWe from two coal-fired subcritical drum-type units and 1 GWe from its two newer, gas-fired combined-cycle units. Plant Daniel is located in Jackson County, near Escatawpa, Mississippi. Named for Victor J. Daniel Jr., Mississippi Power's fourth president, the plant was designated by Southern Company Services, Inc. Jointly owned by Mississippi Power and Florida Power & Light (FPL), it is the largest generator of electric power in the state of Mississippi.
The Monticello Steam Electric Station was a 1.8-gigawatt coal-fired power plant located southwest of Mount Pleasant, Texas, in Titus County, Texas. It operated from 1974 to 2018.
F. B. Culley Generating Station is a 369 megawatt (MW) coal power plant located southeast of Newburgh in Warrick County, Indiana. It sits on the north bank of Ohio River, immediately adjacent and upstream of the Warrick Power Plant, and is owned and operated by Vectren.
Nordjylland Power Station is a coal-fired combined heat and power plant in Vodskov, 17 kilometres (11 mi) north-east of Aalborg, Denmark. It is operated by the municipality Aalborg Kommune. The first unit at the site became operational in 1967, under the association "I/S Nordjyllands Elektricitetsforsyning". Its original name from the opening was "Vendsysselværket", and build to burn oil from the start, but prepared for reconstruction to also burn coal.
The Paradise Combined Cycle Plant is a natural gas power plant operated by the Tennessee Valley Authority (TVA). Located just east of Drakesboro, Kentucky, it was the highest power capacity power plant in Kentucky. The plant originally consisted of three coal units, with a combined capacity of 2,632 MW. Units 1 and 2 were retired in 2017, and replaced with the natural gas units, and Unit 3 was retired in 2020. The combined cycle natural gas plant had a capacity of 1.02-gigawatts as of 2017.
Big Brown Power Plant was a 1.15-gigawatt coal power plant located northeast of Fairfield near Fairfield Lake State Park in Freestone County, Texas. It was operated by Vistra Corp's subsidiary, Luminant. The plant operated from 1971 to 2018.
Oak Grove Power Plant is a 1.79-gigawatt, coal power plant located north of Franklin, Texas in Robertson County, Texas. The plant is operated by Luminant, a subsidiary of Vistra Energy. It began operations in 2010.
Conesville Power Plant was a 2-gigwatt, coal power plant located east of Conesville, Ohio in Coshocton County, Ohio. Its units were co-owned at the time of its closing by American Electric Power (AEP) and AES Ohio Generation. All plant operations were handled by AEP. Conesville began operations in 1957 and ceased generation in April 2020.
J. T. Deely Power Plant was a two unit, 871 megawatt (MW) coal power plant located southeast of San Antonio, in Bexar County, Texas near Calaveras Lake at the Calaveras Power Station. They were operated by CPS Energy and ran from 1977 to 2018.
The W.S. Lee Steam Station, which was previously called the Lee Steam Station, is an electric generation station located near Williamston, South Carolina on the Saluda River. It was named for William States Lee who was chief engineer of Duke Power. He is the grandfather of William States Lee III, who was a chairman and president of Duke Power.