PNNL

Juliet Homer is a professional engineer with more than 20 years of experience leading energy systems analysis, infrastructure planning, and policy strategy at the intersection of technology, regulation, and public purpose. She currently leads PNNL’s Energy Policy Team, where she provides strategic direction for research supporting grid modernization, electrification, energy development, and long-term energy system resilience. Her work spans national and international initiatives, with deep experience supporting the U.S. Department of Energy, state and regional agencies, and electric and water utilities. Prior to joining PNNL, Juliet served at the Oregon Public Utility Commission, where she worked on utility regulation and energy policy issues to address complex energy system challenges.

Earlier in her career, Juliet worked as a consulting engineer at Greeley and Hansen, supporting municipal water utilities on infrastructure planning, system design, and capital investment strategies—experience that grounded her work in real-world utility operations and public accountability. Throughout her career, she has built and led multidisciplinary teams, developed sustained client/sponsor relationships, and advanced programs that align staff capabilities with evolving national priorities. She brings extensive experience in strategic planning, program development, and regulatory and financial frameworks for large-scale energy and infrastructure transformation. Juliet holds engineering degrees from Arizona State University and a certificate in Sustainable Finance from the University of Cambridge, and is deeply motivated to work with teams and leaders across PNNL and the national labs to deliver impactful solutions to the nation’s most pressing energy and environmental challenges.

• Electric distribution system planning with distributed energy resources
• Institutional, regulatory, and policy issues associated with the changing power grid
• Energy demand and distributed energy resources forecasting
• Integrated planning for water and power systems resilience
• Planning for water and climate variability
• Policy impact analysis
• Grid modernization
• Utility economics and benefit-cost analysis

• Master of Science in Civil & Environmental Engineer, Arizona State University
• Bachelor of Science in Civil & Environmental Engineer, Arizona State University