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Wildwood LNG Demonstration Facility 5.5 Engine-Generator Set Electrical energy for the process will be generated from an on-site versatile "rich-burn" engine- generator that will utilize methane-rich gas as the primary fuel. During startup, the engine will be able to use well gas. The proposed engine-generator set is a Waukesha VHP3600GSI Gas Enginator Generating System. The VHP3600GSI includes a Waukesha F3521GSI, four cycle, overhead valve engine rated at 747 brake horsepower; a Waukesha generator; a Mitigator non- selective catalytic reduction system and silencer; a Miratech air/fuel ratio control system; and a sound enclosure. The engine-generator set is designed to meet the best available control technology (BACT) emission limits. It is a natural gas rich-burn engine with a non-selective catalytic reduction system, and an air/fuel ratio control system. The unit is rated for 500 kW continuous power at 1,200 RPM providing 480 volts, 60 Hz three-phase power. The unit has a standby rating of 625 kW. The engine, generator, and radiator are mounted on a common skid with a sound enclosure. The sound enclosure is rated for 85 Dba at 25 feet. The engine will use the vent gas from the liquefaction and purification systems. The gas contains approximately 45%nitrogen and 55%methane at a flowrate of approximately 100 scfm. Wellhead gas will be used to start the engine. The wellhead gas is 17% nitrogen and 82% methane. After the liquefaction system is started, the vent gas will be blended in as the engine fuel while the quantity of wellhead gas is reduced. The only waste stream from the engine-generator is the engine exhaust. The exhaust will be routed through the non-selective catalytic reduction system and silencer. The details of the emissions from the engine exhaust are presented in Section 8.2. It was previously planned to locate the demonstration project in Sutter County. An application to construct for this engine was approved by the Feather River Air Quality Management District (FRAQMD). Permit 2093A was issued on February 14, 2001. Application to the San Joaquin Valley Air Pollution Control District has been made using the same criteria. A permit to operate will be granted following the successful completion of source testing after the engine is installed and operational. Table 6 Design Information for the Engine-Generator Set Equipment I Equipment Name Cylinders Compression Water Capacity Number Ratio 90-3801 GENSET 6 in-line 8:1 49 gallons AES Construction Group Page 9