About Our Faculty


Professor Maggie Winslow is the Director of the Master of Science in Energy Systems Management. She received her PhD from the Energy and Resources Group at the University of California at Berkeley and Master of Science from the School of Natural Resources at the University of Michigan. She spent nine years at Presidio Graduate School in San Francisco, a sustainability focused MBA and MPA program, teaching managerial economics and macroeconomics and serving as MBA program chair and academic dean. Her work spans ecological economics, democracy, equity, and the new economy.


Professor Jim Williams is a global thought leader in the area of low-carbon energy systems. At USF his focus is on developing a new generation of energy professionals with the skills and knowledge needed to have rewarding careers in sustainably meeting society’s energy needs.

Prof. Williams was formerly chief scientist at Energy and Environmental Economics (E3), where he consulted on many aspects of energy technology, planning, and regulation for government, utility, and industry clients. His experience ranges from renewable integration to electric vehicles, retail rate-making to wholesale markets, environmental siting to the water-energy nexus.

Prof. Williams led E3’s analysis of greenhouse gas emission reduction strategies for California’s government agencies, which helped to shape the state’s climate and energy policies. He directs the Deep Decarbonization Pathways Project (DDPP), a consortium of research teams from the 16 highest-emitting countries, whose long-term blueprints for a low-carbon transition influenced the Paris Agreement.

Prof. Williams formerly taught at the Monterey Institute of International Studies, where his research interests included the technical and institutional challenges of decarbonizing China’s power sector.


Professor Stephanie Siehr works on energy–based solutions to multiple environmental problems–from local air pollution to global climate change–combining engineering with tools from political economy and organizational analysis. With a geographical focus on China, Japan, and the US, her research and teaching examine energy and carbon saving strategies; emissions inventories; city climate action; environmental and energy policy analysis; urban sustainability, international cooperation; and environmental risk management.


Professor Paul De Martini is a leading expert on the business, policy and technology dimensions of a more distributed power system. His work draws upon a unique set of successful executive experiences in transforming utility operations, building successful competitive energy services firms and growing technology ventures. His extensive writings and consulting work have influenced industry transformation efforts in Australia, Canada, and across the US. Paul is also currently a visiting scholar at the California Institute of Technology and was the 2016 Crazier Practitioner-in-residence at the Pardee RAND Graduate School.


Professor Chris Greacen works on policy and hands-on implementation of renewable energy from village to government levels. As co-director of the non-profit organization Palang Thai he helped draft Thailand’s Very Small Power Producer (VSPP) policies and conduct studies in support of the country’s feed-in tariff program.

As a consultant to the World Bank, GIZ and ADB he assisted the Myanmar government in developing and implementing the off-grid component of Myanmar’s National Electrification Program, work that has included drafting a regulatory framework for mini grids. From 2008 to 2014 he worked as a World Bank consultant assisting the Tanzanian Energy Water Utilities Regulatory Authority (EWURA) developing the regulatory framework for Tanzania’s Small Power Producer (SPP) program, and is currently engaged in a similar process in Haiti and Rwanda.

He has worked on renewable energy mini-grid projects in Thailand, Cambodia, Laos, Nepal, Myanmar, Vanuatu, Micronesia, India, US Native American reservations, and the Democratic Peoples Republic of Korea (DPRK).