ARCHIVED REPORTS LEC APPLICATION FOR CERTIFICATION

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SECTION 1.0:EXECUTIVE SUMMARY • The project is a 255 MW nominal,natural gas-fired,combined-cycle generating plant with a"Rapid Response' General Electric Frame 7FA combustion turbine-generator (CTG), a single condensing steam turbine generator (STG), a deaerating surface condenser; a 7-cell mechanical draft cooling tower;and associated support equipment. • The CTG is equipped with an evaporative cooler on the inlet air system and dry low NOX combustors. • The heat recovery steam generator (HRSG)will be a horizontal,natural circulation type, equipped with duct burners. The emission reduction system includes a selective catalytic reduction(SCR) unit to control nitrogen oxide (NOX) stack emissions and an oxidation catalyst to control carbon monoxide (CO) emissions. • A small auxiliary boiler will provide steam needed to achieve reduced start times through the CTG"Rapid Response" system. • Cooling tower blowdown water will be disposed of using a new Class I Underground Injection Well (UIW). As a result,no process wastewater will be discharged from the plant. • A new approximately 520-foot,230-kilovolt (kV) line will be constructed to transmit the plant output to the electrical grid via the existing 230-kV STIG switchyard adjacent to the plant. • A new 2.5-mile-long gas line will be built parallel to the existing natural gas pipeline for the STIG plant,and will provide fuel gas to the site. • A new onsite potable water well. • Onsite interconnection to an existing recycled water pipeline and an existing sanitary sewer pipeline. 1.2 Project Owner NCPA is a California Joint Action Agency headquartered in Roseville, California. NCPA is a not-for-profit joint powers agency that represents and provides support for 17 member communities and districts in northern and central California. NCPA was founded in 1968 as a forum through which community-owned utilities could make investments to ensure an affordable,reliable,and clean future energy supply for electric ratepayers. NCPA has a longstanding commitment to the generation of electricity from environmentally responsible sources. NCPA owns and operate several power plants that together comprise a 95 percent emission-free generation portfolio. NCPA's members collectively reflect a 50 percent carbon-free resource portfolio thanks in part to the contribution of NCPA's own resource mix of geothermal,hydroelectric, and natural gas facilities. NCPA continues to advance its ethic of environmental leadership with the recent addition of geothermal and solar resources to its resource mix to power northern California communities. NCPA currently manages over 546 MW of operational power generation. NCPA's power plant development program encompasses both clean,high efficiency natural gas-fired projects as well as hydroelectric and geothermal projects. 1-2 SAC/371322/082330002(LEC_1.0_EXECUTIVE_SUMMARY.DOC)