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Seneca Compressed Air Energy Storage (CAES) Project

Aug. 31, 2012

National Energy Technology Laboratory

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Compressed Air Energy Storage (CAES) is a hybrid energy storage and generation concept that has many potential benefits especially in a location with increasing percentages of intermittent wind energy generation. The objectives of the NYSEG Seneca CAES Project included: in Phase 1, development of a Front End Engineering Design for a 136MW to 210MW utility-owned facility including capital costs; project financials based on the engineering design and forecasts of energy market revenues; design of the salt cavern to be used for air storage; development of technical data required for environmental permit filings; and development of technical data required for a NYISO interconnection filing; in Phase 2,objectives included plant construction with a target in-service date of mid-2016; and Phase 3objectives included commercial demonstration, testing, and two-years of performance reporting. NYSEG has concluded that the economics of the project are not favorable for development in the current and forecast wholesale electric market in New York State, and further project development work is not warranted.

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