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DOE OSTI · 1631741

System Study: Emergency Power System 1998–2018

Ma, Zhegang·Kvarfordt, Kellie J.·Schroeder, John A.·Wierman, Thomas E.
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Abstract

This report presents an unreliability evaluation of the emergency power system (EPS) at 104 U.S. commercial nuclear power plants. Demand, run hours, and failure data from 1998 through 2018 for selected components were obtained from the Institute of Nuclear Power Operations (INPO) Industry Reporting and Information System (IRIS), formerly the INPO Consolidated Events Database (ICES). The unreliability results are trended for the most recent 10 year period while yearly estimates for system unreliability are provided for the entire active period. No statistically significant increasing or decreasing trends were identified in the EPS results.

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22 GENERAL STUDIES OF NUCLEAR REACTORS42 ENGINEERINGemergency power systemnuclear power plantsreliabilitysystemtrending

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Ma, Zhegang, Kvarfordt, Kellie J., Schroeder, John A., Wierman, Thomas E.. 2020-04-17. System Study: Emergency Power System 1998–2018. https://doi.org/10.2172/1631741

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