Senior Advisor
Senior Advisor


Fleurdeliza de Peralta is an Advisor in the Risk and Environmental Assessment group at the Pacific Northwest National Laboratory (PNNL), which is operated by Battelle Memorial Institute for the U.S. Department of Energy. Ms. de Peralta received a Bachelor of Science degree in Mechanical Engineering from the University of California, Los Angeles (UCLA), with emphasis on Thermal Science and Power Systems. She also received a Master of Arts degree in Mental Health Counseling from Argosy University in Seattle Washington, and Certificates in Engineering Management and Fire Protection Engineering from UCLA Extension and Cybersecurity for Information Systems from Harvard University’s Office of Vice Provost.  

Ms. de Peralta is a licensed Professional Engineer in the State of California and has over 33 years of professional experience in projects involving nuclear power plant design, operation, licensing, and maintenance, cybersecurity programs for enterprise information systems and different types of energy generating assets (e.g., nuclear, solar, wind, marine renewable energy, biomass/biofuel) and development of data architectures and management strategies.  She joined PNNL in 2014 and has worked on various nuclear risk, environmental impact,  and cybersecurity projects for NRC, DoD, DoE Water Power Technologies Office and NNSA.  Before joining PNNL, she owned and operated an engineering services consulting firm for 25 years that focused on providing design, licensing, operations, engineering and maintenance support for various  nuclear power plants (pressurized water reactors and boiling water reactors) across the United States.

Research Interest

  • Nuclear Regulations and Policies
  • Nuclear Safety Analysis
  • Cybersecurity Risk Assessments
  • Cybers Security Policies and Programs
  • Risk-Informed Performance-based Nuclear Power Plant Programs
  • Fire Hazards Modeling and Fire Risk Evaluations
  • Training Programs
  • Nuclear Power Plant Design and Operations
  • Nuclear Power Plant Licensing and Decommissioning
  • Environmental Impact Assessments


  • 2002- 2005 Argosy University, Seattle, WA, MA in Mental Health Counseling
  • 1987-1988 UCLA Extension Program, Fire Protection Engineering Certificate
  • 1986 UCLA Extension Program, Engineering Management Certificate
  • 1982-1986 UCLA, BS Mechanical Engineering (Thermal Science and Power Systems)

Affiliations and Professional Service

  • Registered, Professional Mechanical Engineer License, California (#27214)
  • Member, National Fire Protection Association (NFPA)
  • Member, American Society of Mechanical Engineers (ASME)
  • Professional Member, Society of Fire Protection Engineers (SFPE)



  • dePeralta F.A., A.M. Gorton, M.D. Watson, R.M. Bays, J.R. Boles, B.T. Gorton, and J.E. Castleberry, et al. 2020. "Cybersecurity Resiliency of Marine Renewable Energy Systems. Part 1: Identifying Cybersecurity Vulnerabilities and Determining Risk." Marine Technology Society Journal 54, no. 6:97-107. PNNL-SA-154414. doi:10.4031/MTSJ.54.6.9


  • Short S.M., G.A. Coles, K.L. Bohlander, R.F. Layton, W.J. Ivans, F.A. dePeralta, and P.P. Lowry. 2015. "IMPLEMENTING THE NFPA 805 PROCESS: Observations of a Technical Reviewer." In International Topical Meeting on Probabilistic Safety Assessment and Analysis (PSA 2015), April 26-30, 2015, Sun Valley, Idaho, Paper No. 12281. La Grange Park, Illinois: American Nuclear Society. PNNL-SA-106641.