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

2025

• Homer J.S., and J.A. Shipley. 2025. Proactive Regulatory Approaches to Electrification and Load Growth: Workshop Report. PNNL-37135. Richland, WA: Pacific Northwest National Laboratory.
• Homer J.S., C. Simeone, D. Hurlbut, F.B. Van Cleve, and F. Smith. 2025. Planning and Development Pathways to Interregional Transmission. PNNL-37164. Richland, WA: Pacific Northwest National Laboratory. Planning and Development Pathways to Interregional Transmission
• Homer J.S., R. Strauch, N. Voisin, U. Siddiqi, J.C. Fuller, D. Logsdon, and S.R. Bates. 2025. Grid Resilience to Extreme Events (ResiliEX 2.0). PNNL-37255. Richland, WA: Pacific Northwest National Laboratory. Grid Resilience to Extreme Events (ResiliEX 2.0)
• Van Dyke I.K., K. Kazimierczuk, A.L. Cooke, R.M. Tapio, and J.S. Homer. 2025. Climate Adaptation Approaches for Water and Electric Utilities: A compendium of existing strategies in a changing climate. PNNL-37186. Richland, WA: Pacific Northwest National Laboratory. Climate Adaptation Approaches for Water and Electric Utilities: A compendium of existing strategies in a changing climate

2024

• Mongird K., J.S. Homer, J.S. Rice, and K. Oikonomou. 2024. Water & Energy Interdependencies Across Economic Sectors of the United States. PNNL-36021. Richland, WA: Pacific Northwest National Laboratory. Water & Energy Interdependencies Across Economic Sectors of the United States
• Reynolds S., Y. Glazer, K. Oikonomou, J.S. Homer, and M. Webber. 2024. A Review of Resilience and Long-Term Planning in Power and Water Systems in the United States. PNNL-36180. Richland, WA: Pacific Northwest National Laboratory. A Review of Resilience and Long-Term Planning in Power and Water Systems in the United States
• Tapio R.M., J.S. Homer, K. Mongird, and J.G. Eisdorfer. 2024. "Folding community engagement into decision making: A continuous process to increase equity in the energy system." The Electricity Journal 37, no. 7-10:Art. No. 107442. PNNL-SA-192807. doi:10.1016/j.tej.2024.107442

2023

• Homer J.S., A.L. Cooke, K. Kazimierczuk, R.M. Tapio, J. Peacock, and A.G. King. 2023. Emerging Best Practices for Electric Utility Planning with Climate Variability: A Resource for Utilities and Regulators. PNNL-34304. Richland, WA: Pacific Northwest National Laboratory. Emerging Best Practices for Electric Utility Planning with Climate Variability: A Resource for Utilities and Regulators
• Homer J.S., D.R. Judi, J.C. Fuller, and S.R. Bates. 2023. Grid Resilience to Extreme Events - Connecting Science to Investments and Policy. PNNL-34091. Richland, WA: Pacific Northwest National Laboratory. Grid Resilience to Extreme Events - Connecting Science to Investments and Policy
• Mongird K., J.S. Rice, K. Oikonomou, and J.S. Homer. 2023. "Energy-water interdependencies across the three major United States electric grids: a multi-sectoral analysis." Utilities Policy 85. PNNL-SA-175036. doi:10.1016/j.jup.2023.101673

2022

• Homer J.S., K.M. Boenker, A.A. Lippert, K. Oikonomou, R.M. Tapio, and H. Corsair. 2022. Considerations for Resilience Guidelines for Clean Energy Plans For the Oregon Public Utility Commission and Oregon Electricity Stakeholders. PNNL-33277. Richland, WA: Pacific Northwest National Laboratory. Considerations for Resilience Guidelines for Clean Energy Plans For the Oregon Public Utility Commission and Oregon Electricity Stakeholders
• Mongird K., K. Oikonomou, J.S. Homer, and J.S. Rice. 2022. "interflow: A Python package to organize, calculate, and evaluate cross-sectoral resource interdependency data." Journal of Open Source Software 7, no. 74:4336. PNNL-SA-171534. doi:10.21105/joss.04336

2021

• Barrows S.E., J.S. Homer, and A.C. Orrell. 2021. "Valuing Wind as a Distributed Energy Resource: A Literature Review." Renewable & Sustainable Energy Reviews 152. PNNL-SA-166330. doi:10.1016/j.rser.2021.111678
• Charles MM, Z Khan, S Yu, SJ Smith, TC Douville, JS Homer, and TD Hardy, et al. 2021. Electrification of Pakistan's Transport System: Modeling Electric Vehicle Penetration and Energy Supply Chain Impacts. PNNL-31757. Pacific Northwest National Laboratory. Richland, WA. Electrification of Pakistan's Transport System: Modeling Electric Vehicle Penetration and Energy Supply Chain Impacts
• Cooke A.L., J.S. Homer, J.D. Lessick, D. Bhatnagar, and K. Kazimierczuk. 2021. A Review of Water and Climate Change Analysis in Electric Utility Integrated Resource Planning. PNNL-30910. Richland, WA: Pacific Northwest National Laboratory. A Review of Water and Climate Change Analysis in Electric Utility Integrated Resource Planning
• Homer J.S., J.S. Rice, K. Mongird, and K. Oikonomou. 2021. Coordination and Planning for Water and Power System Resilience - Workshop Report. PNNL-31880. Richland, WA: Pacific Northwest National Laboratory. Coordination and Planning for Water and Power System Resilience - Workshop Report
• Oikonomou K., K. Mongird, J.S. Rice, and J.S. Homer. 2021. "Resilience of Interdependent Water and Power Systems: A Literature Review and Conceptual Modeling Framework." Water 13, no. 20:Art. No. 2846. PNNL-SA-165703. doi:10.3390/w13202846

2020

• Foster N, AC Orrell, JS Homer, and JD Tagestad. 2020. “The ‘Perfect Storm’ for Distributed Wind Markets.” Renewable Energy 145. PNNL-SA-120586. doi:10.1016/j.renene.2019.05.058
• Homer JS, DC Preziuso, TC Douville, and RS O'Neil. 2020. Water and Wastewater Systems as Potential Distributed Energy Resources for California - High-level Feasibility Assessment. PNNL-29405. Richland, WA: Pacific Northwest National Laboratory. Water and Wastewater Systems as Potential Distributed Energy Resources for California - High-level Feasibility Assessment
• Reiman AP, JS Homer, BP Bhattarai, and AC Orrell. 2020. “Quantifying Technical Diversity Benefits of Wind as a Distributed Energy Resource.” In IEEE Power & Energy Society Innovative Smart Grid Technologies Conference (ISGT 2020), February 17-20, 2020, Washington, D.C., 1-5. Piscataway, New Jersey:IEEE. PNNL-SA-146894. doi:10.1109/ISGT45199.2020.9087665

2019

• Homer JS and AC Orrell. 2019. Distributed Generation Cost-Benefit and Ratemaking Considerations for Idaho. PNNL-28285. Pacific Northwest National Laboratory. Richland, WA. Distributed Generation Cost-Benefit and Ratemaking Considerations for Idaho
• Homer JS, DC Preziuso, and TC Douville. 2019. Categorization of potential distributed energy resource (DER) opportunities in water and wastewater systems in California. PNNL-28673. Pacific Northwest National Laboratory. Richland, WA. Categorization of potential distributed energy resource (DER) opportunities in water and wastewater systems in California
• Orrell AC, DC Preziuso, N Foster, SL Morris, and JS Homer. 2019. 2018 Distributed Wind Market Report. PNNL-28907. Pacific Northwest National Laboratory. Richland, WA. 2018 Distributed Wind Market Report

2018

• Cooke AL, JS Homer, and L Schwartz. 2018. Distribution System Planning - State Examples by Topic. PNNL-27366. Pacific Northwest National Laboratory. Richland, WA. Distribution System Planning - State Examples by Topic
• Cooke AL, JS Homer, TD Hardy, and DJ Hammerstrom. 2018. Applying the Transactive Systems Business Value Model to IRP. PNNL-27972. Pacific Northwest National Laboratory. Richland, WA. Applying the Transactive Systems Business Value Model to IRP
• Homer JS, P Gilman, M Yancey, B Barker, and I Baring-Gould. 2018. Workshop Report: Wind Innovations for Rural Economic Development (WIRED) Workshop Report. PNNL-28327. Pacific Northwest National Laboratory. Richland, WA. Workshop Report: Wind Innovations for Rural Economic Development (WIRED) Workshop Report
• Orrell AC, JS Homer, and Y Tang. 2018. Distributed Generation Valuation and Compensation. PNNL-27271. Pacific Northwest National Laboratory. Richland, WA. Distributed Generation Valuation and Compensation
• Orrell AC, JS Homer, DC Preziuso, and A Somani. 2018. Illinois Distributed Generation Rebate Calculation Considerations. PNNL-27569. Pacific Northwest National Laboratory. Richland, WA. Illinois Distributed Generation Rebate Calculation Considerations
• Orrell AC, N Foster, JS Homer, SL Morris, EA Poehlman, and DC Preziuso. 2018. 2017 Distributed Wind Market Report. PNNL-27646. Pacific Northwest National Laboratory. Richland, WA. 2017 Distributed Wind Market Report
• Preziuso DC, and JS Homer. 2018. Cost Recovery for Standby and Ancillary Services for Distributed Generation - Considerations for New Mexico. PNNL-27664. Pacific Northwest National Laboratory. Richland, WA. Cost Recovery for Standby and Ancillary Services for Distributed Generation - Considerations for New Mexico

2017

• Homer JS. 2017. Distribution System Market Considerations for the Hawaii Public Utilities Commission. PNNL-26822. Pacific Northwest National Laboratory. Richland, WA.
• Homer JS, AL Cooke, L Schwartz, G Leventis, F Flores-Espino, and M Coddington. 2017. State Engagement in Electric Distribution System Planning. PNNL-27066. Pacific Northwest National Laboratory. Richland, WA. State Engagement in Electric Distribution System Planning
• Kintner-Meyer M, JS Homer, PJ Balducci, and MR Weimar. 2017. Valuation of Electric Power System Services and Technologies. PNNL-25633. Pacific Northwest National Laboratory. Richland, WA. Valuation of Electric Power System Services and Technologies
• Orrell AC, N Foster, JS Homer, and SL Morris. 2017. 2016 Distributed Wind Market Report. PNNL-26540. Pacific Northwest National Laboratory. Richland, WA. 2016 Distributed Wind Market Report
• Tang Y, JS Homer, TE McDermott, M Coddington, B Sigrin, and B Mather. 2017. Summary of Electric Distribution System Analyses with a focus on DERs. PNNL-26272. Pacific Northwest National Laboratory. Richland, WA. Summary of Electric Distribution System Analyses with a focus on DERs

2016

• Hammerstrom DJ, CD Corbin, N Fernandez, JS Homer, A Makhmalbaf, RG Pratt, and A Somani, et al. 2016. Valuation of Transactive Systems. PNNL-25323. Pacific Northwest National Laboratory. Richland, WA. Valuation of Transactive Systems
• Homer JS, SR Bender, and MR Weimar. 2016. Energy Policy Case Study - California: Renewables and Distributed Energy Resources. PNNL-25821. Pacific Northwest National Laboratory. Richland, WA. Energy Policy Case Study - California: Renewables and Distributed Energy Resources
• Orrell AC, JS Homer, SR Bender, and MR Weimar. 2016. Energy Policy Case Study - Texas: Wind, Markets, and Grid Modernization. PNNL-25822. Pacific Northwest National Laboratory. Richland, WA. Energy Policy Case Study - Texas: Wind, Markets, and Grid Modernization
• Orrell AC, N Foster, JS Homer, and SL Morris. 2016. 2015 Distributed Wind Market Report. PNNL-25636. Pacific Northwest National Laboratory. Richland, WA. 2015 Distributed Wind Market Report

2015

• Homer JS. 2015. GridWise Architecture Council: Valuation of Transactive Energy Systems Technical Meeting Proceedings, September 29-30, 2015, Taylor, Texas. Richland, Washington:GridWise Architecture Council. PNNL-SA-115150.