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Energy and Environment Directorate

Travis Ashley

Travis Ashley

(509) 375-2949


Travis Ashley has worked at PNNL in Electricity Infrastructure and Buildings as a computer scientist since 2017. His research in residential energy efficiency applications is primarily on the impact of using retrofit appliances and using CTA-2045 technology. He uses R for data processing and analysis to evaluate the impact of load shifting and load shedding through demand response events. His research in cybersecurity is primarily on critical infrastructure protection, focusing on the improvement of the cybersecurity maturity of federal facilities that supply critical services. He uses python for developing Attack Surface Management tools to help federal facilities identify their exposed devices, and he develops training tools for federal facilities to evaluate and strengthen their cybersecurity posture.

Research Interests

  • Residential Energy Efficiency Applications
  • Cybersecurity of Energy Deliver Systems
  • Critical Infrastructure Protection
  • IoT Cybersecurity Policy

Education and Credentials

  • B.AS., Cyber Security, Columbia Basin College
  • A.AS., Cyber Security, Columbia Basin College

Affiliations and Professional Service

  • IEEE membership
  • Computer Society

PNNL Publications


  • Ashley T.D., R. Kwon, S. Gourisetti, C. Katsis, C.A. Bonebrake, and P.A. Boyd. 2022. "Gamification of Cybersecurity for Workforce Development in Critical Infrastructure." IEEE Access 10. PNNL-SA-175584. doi:10.1109/ACCESS.2022.3216711
  • Ashley T.D., S. Gourisetti, N.B. Brown, and C.A. Bonebrake. 2022. "Aggregate Attack Surface Management for Network Discovery of Operational Technology." Computers & Security 123. PNNL-SA-171059. doi:10.1016/j.cose.2022.102939
  • Butzbaugh J.B., E.T. Mayhorn, T.D. Ashley, C.E. Metzger, K.E. Fenaughty, and D. Parker. 2022. "Field Study of Grid-connected Heat Pump Water Heaters in the Southeast U.S.: The Next Right Thing." In 2022 ACEEE Summer Study on Energy Efficiency in Buildings: Climate Solutions: Efficiency, Equity and Decarbonization, August 21-26, 2022, Monterey, CA, 12-292 - 12-307. Washington, Dc:American Council for an Energy Efficiency Economy. PNNL-SA-171512.


  • Gourisetti S.G., M. Touhiduzzaman, T.D. Ashley, S. Pal, and P.L. McKenzie. 2021. "Cybersecurity Risk Assessment Framework for Externally Exposed Energy Delivery Systems." In Proceedings of the 54th Hawaii International Conference on System Sciences (HICSS 2021), January 4-8, 2021, Virtual, Online, 6936 - 6944. Los Alamitos, California:IEEE Computer Society. PNNL-SA-156822. doi:10.24251/HICSS.2021.834
  • Manasseh O., C.E. Metzger, E.T. Mayhorn, T.D. Ashley, and W.E. Hunt. 2021. "Nontargeted vs. Targeted vs. Smart Load Shifting Using Heat Pump Water Heaters." Energies 14, no. 22:Art. No. 7574. PNNL-SA-156587. doi:10.3390/en14227574


  • Ashley T.D., C.E. Metzger, J.T. Kolln, and G.P. Sullivan. 2020. Maximizing the Use of Ductless Mini-Splits in the PNNL Lab Homes. PNNL-29531. Richland, WA: Pacific Northwest National Laboratory. Maximizing the Use of Ductless Mini-Splits in the PNNL Lab Homes
  • Kwon R., T.D. Ashley, J.E. Castleberry, P.L. McKenzie, and S.G. Gourisetti. 2020. "Cyber Threat Dictionary Using MITRE ATT&CK Matrix and NIST Cybersecurity Framework Mapping." In IEEE Resilience Week (RWS 2020), October 19-23, 2020, Salt Lake City, UT, 106-112. Piscataway, New Jersey:IEEE. PNNL-SA-154130. doi:10.1109/RWS50334.2020.9241271


  • Gourisetti S.G., M.E. Mylrea, T.D. Ashley, R. Kwon, J.E. Castleberry, Q.J. Wright-Mockler, and P.L. McKenzie, et al. 2019. "Demonstration of the Cybersecurity Framework through Real-world Cyber Attack." In IEEE Resilience Week (RWS 2019), November 4-7, 2019, San Antonio, TX, 19-25. Piscataway, New Jersey:IEEE. PNNL-SA-144915. doi:10.1109/RWS47064.2019.8971822


  • Cort K.A., J.A. McIntosh, C.E. Metzger, T.D. Ashley, and G.P. Sullivan. 2018. "Completing the Connected Home with Smart Window Shades." In ACEEE Summer Study on Energy Efficiency in Buildings, August 12-17, 2018, Pacific Grove, CA, 12-1 - 12-12. Washington, District Of Columbia:American Council for an Energy-Efficient Economy. PNNL-SA-135343.
  • Cort K.A., J.A. McIntosh, G. Sullivan, T.D. Ashley, C.E. Metzger, and N. Fernandez. 2018. Testing the Performance and Dynamic Control of Energy-Efficient Cellular Shades in the PNNL Lab Homes. PNNL-27663 Rev 1. Richland, WA: Pacific Northwest National Laboratory.

Energy and Environment

Core Research Areas