Herbert A. Wagner Generating Station

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Herbert A. Wagner Generating Station
Herbert A. Wagner Generating Station aerial.jpg
H.A. Wagner (center, on the water) and Brandon Shores Generating Stations, with Francis Scott Key Bridge
Herbert A. Wagner Generating Station
CountryUnited States
Location Anne Arundel County, Maryland
Coordinates 39°10′43″N76°31′37″W / 39.17861°N 76.52694°W / 39.17861; -76.52694
StatusOperational
Commission date Unit 1: February, 1956
Unit 2: January, 1959
Unit 3: August, 1966
Unit 4: August, 1972
Owner(s) Talen Energy June 2015 - Present
Thermal power station
Primary fuel Residual fuel oil, bituminous coal, natural gas
Turbine technology Steam turbine
Cooling source Chesapeake Bay
Power generation
Nameplate capacity 1,040 MWe
External links
Website Talen Energy
Commons Related media on Commons
[ edit on Wikidata]

The Herbert A. Wagner Generating Station is an electric generating station located on Fort Smallwood Road north of Orchard Beach in Anne Arundel County, Maryland, just east of Glen Burnie, and is operated by the Raven Power Holdings, LLC, a subsidiary of Riverstone Holdings LLC. The H. A. Wagner station consists of natural gas fueled Unit 1, nominally rated at 133 MWe, coal-fired Unit 2 rated at 136 MWe, coal-fired Unit 3 rated at 359 MWe, and oil-fired Unit 4 rated at 415 MWe. [1] [2] Talen Energy will convert the coal-fired units to alternative fuels by 2025. [3]

Contents

The station shares a 483-acre (195 ha) site adjacent to the Patapsco River with the Brandon Shores Generating Station. The Brandon Shores plant dominates the site with its 700-foot (210 m) exhaust and 400-foot (120 m) flue-gas desulfurization system stacks.

Fuel delivery

The Wagner and Brandon Shores generating stations consume approximately 4.8 million tons of coal annually. [4] Coal for both stations and number 6 fuel oil for Wagner Unit 4 is delivered by barge. Although there is a railroad spur into the site that could be used for coal shipments to the site, it is unused and would require improvements to restore it to an operational state. An estimate in a 2007 report indicated that the cost of returning this rail line to operation with the necessary material handling equipment would potentially exceed US$20 million. [4]

Natural gas for the Wagner unit 1 is provided by a pipeline.

Dispatch of electricity

The electrical output of Brandon Shores Generating Station is dispatched by the PJM Interconnection regional transmission organization.

Wagner Generating Station from Cox Creek, with the 700-foot (210 m) stacks of the Brandon Shores plant at left and the active 400-foot (120 m) Brandon Shores stack just visible Herbert A. Wagner plant MD1.jpg
Wagner Generating Station from Cox Creek, with the 700-foot (210 m) stacks of the Brandon Shores plant at left and the active 400-foot (120 m) Brandon Shores stack just visible

History

The Wagner Generating Station's oil-fired Unit 1 commenced operations in 1956. [2] Unit 2, consisting of a Babcock & Wilcox 1800 psig steam boiler and General Electric single reheat steam turbine, began operations as a coal-fired plant in 1959. Coal-fired Unit 3, which has a Babcock & Wilcox 3500 psig supercritical boiler and a Westinghouse double-reheat cross compound turbine, commenced operations in 1966. [2] The oil-fired unit 4 began operations in 1972. [2] Unit 2 was converted to fuel oil to comply with state and federal air quality requirements in 1972, and then modified to allow a return to burning coal in 1987. [5] Units 2, 3, and 4 were also converted to use natural gas during startup operations in 1987. [5] Additional air pollution controls were added to the plants in the 1980s.

The plant is named for Herbert Appleton Wagner (1867–1947), who was president of the Consolidated Gas and Electric of Baltimore, the predecessor company of Constellation Energy, from 1915 through 1942. [6] Wagner also held a patent on a self-starting, single-phase motor and founded in 1891 the Wagner Electric Manufacturing Company in St. Louis, Missouri. [6]

2012 sale

The plant was originally constructed by a predecessor company of Constellation Energy, which was later purchased by Exelon in 2012. On August 9, 2012, Exelon announced that it had reached an agreement, subject to regulatory approvals, for the sale of the Charles P. Crane, Brandon Shores, and Herbert A. Wagner Generating Stations to Raven Power Holdings LLC, a newly formed portfolio company of Riverstone Holdings LLC, for approximately $400 million. [7] Exelon had committed to divest the plants as condition for regulatory approval of its merger with Constellation Energy to alleviate concerns regarding potential market power in the regional wholesale electricity market. The sale was completed on November 30, 2012.

Scheduled Closure

On November 10, 2020 Talen Energy (parent company of Raven Power) announced a settlement with the Sierra Club that the plant would cease burning coal and convert to alternative energy sources by the end of 2025. [3]

Cooling

All four Wagner units are cooled using water from intake structures from a basin on the Patapsco River using two circulating water pumps per unit. [8] Water from units 1, 2, and 3 is returned to the river by a discharge canal upstream of the intake basin while water from unit 4 uses a discharge canal downstream of the intake basin. [8]

See also

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References

  1. ↑ "Existing Electric Generating Units in the United States, 2006" (Excel). Energy Information Administration, U.S. Department of Energy. 2006. Retrieved 2008-07-14.
  2. 1 2 3 4 "Environmental Review of Proposed Air Pollution Control Project at H. A. Wagner" (pdf). Maryland Department of Natural Resources. February 23, 2007. Retrieved 2009-01-02.
  3. 1 2 Pacella, Rachael (2020-11-11). "Owner of Brandon Shores and Wagner power plants in Pasadena will stop burning coal by end of 2025". The Baltimore Sun.
  4. 1 2 "Environmental Review of Proposed Air Pollution Control Project at Brandon Shores" (PDF). Maryland Department of Natural Resources. February 5, 2007. Archived from the original (PDF) on March 7, 2013. Retrieved 2008-12-30.
  5. 1 2 Maryland Public Service Commission Order No. 67682, Case No. 7975, March 17, 1987.
  6. 1 2 King, Thomson (1950). Consolidated of Baltimore 1816-1950: A History of Consolidated Gas Electric Light and Power Company of Baltimore. Baltimore: Consolidated Gas Electric Light and Power Co. pp. 171, 205, 285–97.
  7. ↑ "Exelon Agrees to Sell Three Maryland Coal Plants to Raven Power Holdings LLC" (Press release). Exelon. Aug 9, 2012. Retrieved Aug 13, 2012.
  8. 1 2 "Ecological Studies at the H. A. Wagner Plant" (PDF). Lawler Matusky & Skelly Engineers. March 1980. Retrieved 2009-02-25.
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