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SCS Energy Operation/Maintenance Projects |
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• Services SCS Energy provides ongoing operation/maintenance services for most of the power plants that SCS Energy has installed. SCS Energy also provides ongoing operation/ maintenance services for power plants that were installed by other firms. As of January 2009, SCS Energy had operation/maintenance responsibility for 18 power plants having a total capacity of 34 MW. Several of SCS Energy's operation/maintenance projects are listed below:
____________________________________________________________________ The project employs two 1.0 MW reciprocating engines, one of which is fired 40 percent on landfill gas and 60 percent on natural gas, and the other 100 percent on natural gas. The project began commercial operation in October 2002. The project employs post-combustion, selective catalytic reduction (SCR) for NOx control. Hot water from the engines is used to provide thermal energy to the hotel. Because of the sensitivity of SCR to impurities in the landfill gas, extensive cleanup of the raw landfill gas was necessary. The project operates in parallel with Southern California Edison (SCE), and is base loaded and load-following. It displaces power purchases from SCE. SCS was responsible for the following aspects of the project:
The total plant capacity is 2.0 MW. SCS currently has responsibility for operation/maintenance of this facility. SCS Responsibilities (marked with "X")
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SCS is currently providing operation and maintenance services at this facility under a multi-year agreement. SCS assumed responsibility for this facility in July 2007. The faciliyt employs a single Deutz TBG620 (V16) 1.3 MW reciprocating engine. Power is sold to the grid. At the time SCS took responsibility for the plant, it was shut down. SCS undertook a remedial improvements program that returned the plant to reliable operation. SCS Responsibilities (marked with "X")
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SCS is currently providing operation and maintenance services at this facility under a multi-year agreement. SCS assumed responsibility for this facility in August 2006. The facility employs a single Deutz TBG 620 (V12) 1.0 MW reciprocating engine. The facility is located at the City's main wastewater treatment plant, which is adjacent to the City's California Street Landfill. Hot water from the engine is used to heat the wastewater treatment plant's digesters. When SCS assumed responsibility for the project, it was shut down. SCS undertook a remedial improvements program that returned the plant to reliable operation. the plant now operates at 95 percent availability. SCS Responsibilities (marked with "X")
return to page top _________________________________________________ The Seminole Road Landfill LFGTE facility employs two Caterpillar 3520 engine/generators. The plant has a capacity of 3.2 MW. The project began operation in October 2006. SCS’s responsibilities on this project included:
SCS performed this work on a turnkey basis and is responsible for ongoing operation/ maintenance of the facility under a multi-year contract. SCS Responsibilities (marked with "X")
return to page top _________________________________________________ The Dry Creek Landfill LFGTE project employs two Caterpillar 3520 engine/generators. The plant has a capacity of 3.2 MW. The plant began operation in September 2007. SCS’s responsibilities on this project include:
SCS performed this work on a turnkey basis and is responsible for operation and maintenance of the facility under a multi-year contract. SCS Responsibilities (marked with "X")
return to page top _________________________________________________ Monmouth County engaged SCS to design and construct a 1.0 MW project at Monmouth County's reclamation center, adjacent to their landfill, in Tinton Falls, New Jersey. The landfill gas fired reciprocating engine supplies electric power to satisfy on-site power requirements. Excess power during off-peak hours is sent to the grid. The project incorporates:
The project began operation in November 2007. SCS has a two-year operation and maintenance contract for this facility. SCS Responsibilities (marked with "X")
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The University of New Hampshire LFGTE project employs two Caterpillar 3520 engine/ generators. The plant has a capacity of 3.2 MW. The project will begin operation in February 2009. SCS’s responsibilities on this project included:
The project will supply power to a landfill gas to pipeline quality gas plant being built at the same location. It will make the pipeline quality gas plant energy self-sufficient. SCS performed this work on a turnkey basis and will be responsible for ongoing operation adn maintenance of the facility under a multi-year contract. SCS Responsibilities (marked with "X")
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The projects incorporate one Jenbacher 316 engine/generator at the Gude Landfill, and one Caterpillar 3520 engine/generator and one Jenbacher 316 engine/generator at the Oaks Landfill. The total capacity of the facilities is 3.2 MW. SCS is undertaking this assignment on a design/construct basis. SCS will operate and maintain the facilities under a five-year agreement. SCS’s responsibilities on this project included:
Commercial operation is expected by March 2009. SCS Responsibilities (marked with "X")
return to page top _________________________________________________ SCS is undertaking this project on a design/construct basis. It will employ a single Caterpillar 3520. SCS's responsibilities on this project included:
Commercial operation is expected by March 2009. SCS Responsibilities (marked with "X")
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The project employs four Cooper reciprocating engines with a total installed capacity of 7.5 MW. The project is landfill gas fired and has the capability of co-firing with natural gas during periods of low landfill gas methane content. The project sells power to the Los Angeles Department of Water and Power (LADWP). In addition to full responsibility for plant operation/maintenance, SCS implemented a $2.4 million plant betterment project to reduce NOx emissions, and to increase plant availability and capacity factor. Key elements of the betterment program included replacement of the individual engine control systems, installation of a plant-wide SCADA system, and installation of continuous emissions monitoring systems (CEMS) on each engine. In the first year of operation, SCS self-performed major overhauls of two of the engines, including an engine which had been abandoned in-place by the prior owner of the power plant. SCS has been responsible for operation and maintenance of this facility since February 2005. SCS Responsibilities (marked with "X")
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The project employs two Cooper Superior reciprocating engines with a total installed capacity of 3.8 MW. In 2005, the plant upgraded with a new engine control system and a continuous emissions monitoring system to improve air emissions compliance. The plant currently sells power to Southern California Edison Company. SCS has a contract to provide full operation and maintenance services at this site. SCS is also responsible for scheduling of power sales.SCS has been responsible for operation and maintenance of this facility since January 2006. SCS Responsibilities (marked with "X")
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The project employs ten 30 kW Capstone microturbines which are fired on landfill gas with a methane content as low as 35 percent. The project began operation in August 2002. The project generates power to serve the on-site power needs of the landfill. The landfill’s on-site power requirements include those associated with the main landfill gas flare and office buildings. The microturbines were given to the Districts by the South Coast Air Quality Management District (SCAQMD). SCS was responsible for installation of the microturbines and the design and construction of all supporting civil, mechanical, and electrical project elements. The project is interconnected to Southern California Edison Company (SCE) for the purpose of securing supplemental and standby power. It operates in parallel with SCE and it is a baseload, load-following unit. The project incorporates the following components:
SCS executed this project on a design/construct basis. The total capacity is 300 kW. SCS is currently responsible for operation and maintenance of this facility. SCS Responsibilities (marked with "X")
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A 360 kW digester gas fired microturbine project was installed at the Allentown wastewater treatment plant in December 2000. The project incorporated twelve 30 kW Capstone microturbines equipped with hot water recovery equipment. The hot water was used to heat the plant's anaerobic digesters. Problems with the microturbine plant's fuel pretreatment, fuel compression and hot water recovery equipment led to a suspension of plant operation in 2001. SCS was engaged to completely upgrade and refurbish the plant including:
SCS undertook this project on a turnkey basis. Its total capacity after refurbishment was 390 kW. The refurbished plant commenced operation in November 2003. SCS currently has operation/maintenance responsibility for this facility. SCS Responsibilities (marked with "X")
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The project employs ten Capstone 30 kW microturbines and one 250 kW Ingersoll-Rand microturbine, all fired on landfill gas with a methane content as low as 38 percent. The project commenced operation in April 2005. A project incorporating the ten Capstone microturbines originally commenced operation at this location in July 2001. After less than a year of operation, the project was shut down due to operational problems with the landfill gas conditioning equipment and the microturbines themselves. SCS’s responsibilities on this new project included:
The project exports 85 percent of the power it produces to the municipally-owned power distribution system. The project contributes to the City’s commitment to increase green power production. The total capacity of this plant is 550 kW. SCS executed the project on a turnkey basis. SCS currently has operation/maintenance responsibility for this facility.SCS Responsibilities (marked with "X")
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The project employs two 250 kW FuelCell Energy, Inc. fuel cells. The fuel cells use digester gas as a fuel. The methane content of the digester gas is 62 percent. The project began operation in November 2004. The project incorporates a waste heat hot water generator and an SCS designed/fabricated digester gas pressurization/treatment skid. The skid removes moisture, particulates, hydrogen sulfide, halogenated compounds and siloxanes. The hot water is used to heat the WWTP's anaerobic digesters, which frees up additional digester gas for power generation. The entire power plant, including digester gas supply and hot water interfaces, are under the control of an SCS designed/fabricated SCADA system. The power plant operates in parallel with Southern California Edison (SCE) as a baseload unit. The power plant displaces power otherwise bought from SCE at retail rates. The project qualifies for net metering under CaPUC regulations. The total power plant capacity is 500 kW. SCS executed the project on a design/construct basis. The project is the largest digester gas fueled fuel cell project in California. SCS currently has operation/maintenance responsibility for this facility. SCS Responsibilities (marked with "X")
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The project is the largest project in the United States that produces pipeline quality gas from natural gas using pressure swing absorption (PSA) technology. The inlet capacity is 9.0 mmscfd. Principal components of the plant are as follows:
SCS has been responsible for operation/maintenance of this facility since June 2005. SCS Responsibilities (marked with "X")
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The Mountaingate Gas Plant cleans and compresses 2.0 mmscfd (1,400 scfm) of landfill gas. The processed gas is delivered to the University of California at Los Angeles (UCLA) via a 5.5 mile pipeline where it is co-fired with natural gas at UCLA’s 40 MW on-campus cogeneration plant. The gas plant consists of the following major components:
The gas plant is located adjacent to the Mountaingate Country Club. SCS is responsible for the operation/maintenance of the gas plant and the pipeline, environmental permitting and reporting, liaison with the Mountaingate Country Club, and coordination of day-to-day operation with the UCLA cogeneration plant. SCS Responsibilities (marked with "X")
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