Stephen Nass Email & Phone Number

I have over 20 years experience in PRA areas related to developing PRA models and PRA applications. At Westinghouse, I’ve worked directly with domestic utilities in converting PRA models between software platforms, developing accident sequence analyses and performing SAMA analysis. I have developed PRA model updates and upgrades to meet Regulatory Guide 1.200 requirements and have participated on PRA Peer Review and on RG 1.200 Gap Analysis teams and I'm a member of the NEI PRA Peer Review Task Force.Previously at FENOC I was Project Manager for the development of the Beaver Valley Unit 1 &2 IPEs and IPEEEs and developed portions of the BVPS IPEs including; event sequence diagrams based on the Emergency Operating Procedures, analysis of system dependencies and development of dependency matrices, developed system fault trees, and developed level 1 and level 2 event trees. I’ve performed common cause failure and human reliability analysis for input to the BVPS PRA models. I also have experience in performing PRA analyses for configuration risk management of at-power and outage conditions, risk-informed Inservice Inspection, and analyses supporting risk-informed Technical Specification changes and risk ranking of MOVs and AOVs.

Listed skills include Nuclear, Power Generation, Nuclear Engineering, Power Plants, and 14 others.