System Study: Emergency Power System 1998-2014
- Idaho National Lab. (INL), Idaho Falls, ID (United States). Risk Assessment and Management Services Dept.
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 fiscal year 1998 through 2014 for selected components were obtained from the Institute of Nuclear Power Operations (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. An extremely statistically significant increasing trend was observed for EPS system unreliability for an 8-hour mission. A statistically significant increasing trend was observed for EPS system start-only unreliability.
- Research Organization:
- Idaho National Lab. (INL), Idaho Falls, ID (United States)
- Sponsoring Organization:
- USDOE; US Nuclear Regulatory Commission (NRC)
- DOE Contract Number:
- AC07-05ID14517; NRC-HQ-14-D-0018
- OSTI ID:
- 1261233
- Report Number(s):
- INL/EXT-16-37927; TRN: US1601577
- Country of Publication:
- United States
- Language:
- English
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