Gas- and Oil-Fired Plants in California

AES Alamitos Location: California Operator: AES Corp Configuration: 2 X 163 MW, 2 X 333 MW, 2 X 495 MW Operation: 1956-1966 Fuel: natural gas, oil Boiler supplier: B&W, CE T/G supplier: GE, WH EPC: Bechtel Quick facts: The plant was built and operated by Southern California Edison and sold to AES Crop per an agreement dating to Nov 1997. It occupies about 120ac along the west bank of the San Gabriel River, 2mi northeast of the entrance to Alamitos Bay. Units 3-6 are cross-compound units, Units 5&6 are supercritical. All six units have SCRs. Photograph courtesy of www.daylife.com Posted 27 Apr 2008	Broadway Location: California Operator: Pasadena Water & Power Dept Configuration: 2 X 46 MW (ret), 1 X 72 MW Operation: 1954-1965 Fuel: natural gas Boiler supplier: CE, FW T/G supplier: Allis Chalmers EPC: Bechtel, Pacific Gas and Electric Quick facts: Unit-3 is generally only used in the summer. Photograph by benprks (flickr) Posted 14 Jun 2008	Contra Costa Location: California Operator: NRG Energy Inc Configuration: 5 X 100 MW, 2 X 359 MW Operation: 1951-1964 (ret) Fuel: natural gas, oil Boiler supplier: CE, B&W T/G supplier: GE, WH EPC: Bechtel, Pacific Gas and Electric Quick facts: Mirant (later GenOn) acquired the plant from Pacfic Gas and Electric in 1999. The company invested over $18mn in low NOx burners, SCR systems, and separated over-fire air equipment for the large sets. Units 4&5 were converted to synchronous condensers. Units 6&7 retired in May 2013 after the completion of the adjacent Marsh Landing CCGT. Photograph by Stones 55 (flickr) Posted 19 Apr 2007
Hunters Point Location: California Operator: Pacific Gas and Electric Co Configuration: 1 X 42 MW, 2  X 108 MW, 1 X 163 MW, 1 X 52 MW GT Operation: 1929-1958 Fuel: natural gas, oil Boiler supplier: B&W, CE T/G supplier: GE EPC: Pacific Gas and Electric Quick facts: This was one of the first major thermal power plants in the Bay Area. Installation of a new static var compensator at Potrero power plant in Dec 2004 allowed the termination of the California ISO reliability must-run (RMR) agreements for the plant and Hunters Point 2&3 were closed shortly thereafter when their RMR contracts expired. Unit-4 was closed in May 2006. Photograph courtesy of parody.org Posted 10 Jun 2006	AES Huntington Beach Location: California Operator: AES Corp Configuration: 2 X 218 MW, 2 X 225 MW Operation: 1958-1961 Fuel: natural gas, oil Boiler supplier: B&W T/G supplier: GE, WH EPC: Bechtel Quick facts: The plant was built and operated by Southern California Edison on a 12ac coastal site. It was sold to AES Crop per an agreement dating to Nov 1997. All units have cross-compound steam turbines. Units 3&4 were taken out of service in 1995 and substantially rebuilt in 2001 by PMSI under a $130mn contract. The scope included boiler pressure components, new air preheaters and ducting, low-Nox burners and a SCR, plus overhauls of some piping and auxiliary and control systems. Photograph courtesy of Powerplant Maintenance Specialists Inc Posted 21 Jun 2009	Long Beach 1-4 Location: California Operator: Southern California Edison Co Configuration: 4 X 100 MW Operation: 1928-?? Fuel: natural gas, oil Boiler supplier: ?? T/G supplier: ?? Quick facts: The photo is from the UCLA Archives and shows a $10mn construction project underway at at Long Beach GS on Terminal Island. This doubled the size of the existing power plant. Uni-1 went online on 20 Jun 1928. Photograph courtesy of latimes.com Posted 23 Sep 2012
Mandalay Location: California Operator: Reliant Energy Configuration: 2 X 218 MW Operation: 1959 Fuel: natural gas, oil Boiler supplier: B&W T/G supplier: GE EPC: Bechtel Quick facts: Plant purchased from Southern Californa Edison Co in Apr 1998. This was one of the first conventional steam-electric plants in the USA to retrofit SCR. Cross-compound turbines. Photograph by Joe Virnig (www.venturacountyvistas.com) Posted 3 Mar 2007	Morro Bay Location: California Operator: Duke Energy North America Configuration: 2 X 169 MW, 2  X 359 MW Operation: 1955-1963 Fuel: natural gas, oil Boiler supplier: CE, B&W T/G supplier: GE, WH EPC: Bechtel, Pacific Gas and Electric Quick facts: Plant purchased from Pacific Gas and Electric in July 1998. Units 1&2 are shutdown. Photograph by Peter Henderson and courtesy of PISCES Conservation Ltd Posted 11 Jun 2004	Moss Landing Location: California Operator: Duke Energy North America Configuration: 5 X 100 MW (ret 1994), 2 X 750 MW Operation: 1950-1968 Fuel: natural gas Boiler supplier: B&W T/G supplier: GE, WH EPC: Stone & Webster, Pacific Gas and Electric Quick facts: Plant purchased from Pacific Gas and Electric in July 1998. Units 6&7 are supercritical cross-compound units. Two 530-MW combined-cycle blocks were installed in 2002. Photograph by Declan McCullagh Posted 6 Jan 2002
Ormond Beach Location: California Operator: Reliant Energy Configuration: 2 X 806 MW Operation: 1971-1973 Fuel: natural gas, oil Boiler supplier: FW T/G supplier: GE EPC: Bechtel Quick facts: Plant purchased from Southern Californa Edison Co in Apr 1998. The supercritical units were retrofit with a Joy SCR system. Photograph by Joe Virnig (www.venturacountyvistas.com) Posted 3 Mar 2007	Potrero-3 Location: California Operator: Mirant Corp Configuration: 1 X 218 MW Operation: 1965 (ret 2010) Fuel: natural gas, oil Boiler supplier: RS T/G supplier: WH EPC: Pacific Gas and Electric Quick facts: After taking ownership of Potrero in 1999, Mirant (later GenOn)invested $26mn to reduce NOx emissions at the plant and also cleaned and closed the plant's waste ponds. As part of an agreement with the City and County of San Francisco, the company agreed to close the unit permanently on 31 Dec 2010. Photograph and copyright by Tristan Savatier (www.loupiote.com) Posted 28 Jan 2007	Scattergood Location: California Operator: Los Angeles Dept of Water and Power Configuration: 2 X 163 MW, 1  X 497 MW Operation: 1958-1974 Fuel: natural gas, digester gas, oil Boiler supplier: CE, B&W T/G supplier: GE, BBC EPC: Bechtel, Pacific Gas and Electric Quick facts: Scattergood is adjacent to the Hyperion Wastewater Treamement Plant, the largest in the city, and the El Serundo Refinery. In 1995, the Department of Public Works and LADWP entered into a landmark 20yr agreement whereby DPW agreed to provide digester biogas to Scattergood Steam The volume is about 8mn cubic feet per day. Unit-3 is supercritical. Photograph by BillGraf (flickr) Posted 23 Sep 2012
Seal Beach Location: California Operator: Los Angeles Dept of Water and Power Configuration: 75 MW Operation: 1925-1928 Fuel: natural gas, oil Boiler supplier: ?? T/G supplier: ?? EPC: Los Angeles Gas and Electric Corp Quick facts: Ground was broken for Seal Beach on 1 Jul 1925. The original 375ft stack was damaged by an earthquake in Mar 1933 and replaced by this much shorter stack. DWP bought LA Gas and Electric in 1936. The photo is ca 1940 and the plant was closed in 1951. Photograph courtesy of waterandpower.org Posted 23 Sep 2012		South Bay Location: California Operator: Dynegy South Bay Configuration: 2 X 136 MW, 1  X 202 MW, 1 X 240 MW Operation: 1960-1971 (ret) Fuel: natural gas, oil Boiler supplier: CE, B&W, RS T/G supplier: GE, WH Quick facts: Acquired by the Unified Port of San Diego from San Diego Electric & Gas in 1999. Operated for a time under long-term lease by Duke Energy Americas. DEA's interests acquired by LS Power Group in May 2006. Planned 620-MW CCGT replacement plant cancelled in Mar 2007. Site acquired by Dynegy in Apr 2007. License expired on 21 Dec 2010, at which time the plant was retired. Photograph courtesy of Duke Energy Posted 26 Jan 2005

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