Our Team
Mary Wiencke
Executive Director
Mary joined PGP in 2022. Prior to joining PGP, Mary was the Vice President of Market, Regulation, and Transmission Policy for PacifiCorp where she developed and provided strategic direction on PacifiCorp’s environmental, transmission and market policies. Ms. Wiencke held various roles at PacifiCorp including Senior Attorney and Director, Environmental Policy at PacifiCorp. Ms. Wiencke is a graduate of Barnard College and Lewis & Clark Law School.
Phone: 971-288-9999
Nikkole Hughes
Regulatory Policy Analyst
Nikkole Hughes joined PGP in November 2021. Her work at PGP is focused on clean energy and carbon policy. Prior to joining PGP, Nikkole spent 7 years as non-partisan staff to the Washington State House of Representatives, where she served as lead House staffer for both the Washington Clean Energy Transformation Act (CETA) and the Climate Commitment Act (CCA). She holds a Master of Public Administration degree from The Evergreen State College and a Bachelor of Science degree in Natural Resource Sciences from Washington State University.
Phone: 360-583-6121
Sibyl Geiselman
Market Policy Advisor
Sibyl joined PGP in July of 2022. Her work at PGP is focused on market design and strategy. Prior to joining PGP, Sibyl focused on production cost modeling, market analysis, and market strategy in organized and bilateral markets at Avangrid Renewables and Enel North America. Sibyl started her career in public power as an Energy Resource Analyst at the Eugene Water and Electric Board. She graduated from the Clark Honor’s College at the University of Oregon and has a bachelor’s degree in Applied Mathematics and Spanish.
Phone 503-730-1046
Ryan Bottem
Energy Policy Analyst
Ryan joins Public Generating Pool as an Energy Policy Analyst after 3 years as an Energy Researcher at Western Washington University. He is an alum of Western's Institute for Energy Studies, earning his BS in Energy Science and Technology. He is a current Master of Science candidate in Environmental Science working on a thesis in embodied carbon dioxide reduction through Life Cycle Analysis. His research career began with exploring the viability of coal ash as a thermal medium for concentration solar power. Through material analysis, the research team concluded coal fly ash was a viable candidate for use as a thermal medium in Concentration Solar Power plants. As a research intern at Okanogan County Electric Cooperative, Ryan was employed to study rural energy efficiency implementation under the Bonneville Power Administration and draft a plan of action for the following five years. Most recently his research has focused on the energy consumption and emissions attributed to the legal cannabis market. His thesis will be a comparative analysis illuminating best practices and outlining a more efficient path forward, expected in June 2025.
In his free time, Ryan enjoys exploring the outdoors with his partner. Based in Bellingham, Washington, the mountains, forests, and beaches are all frequent stops.