Benjamin F. Hobbs - Professor
Theodore M. and Kay W. Schad Professor in Environmental Management Dept. Environmental Health and Engineering
Joint Appointment in Applied Mathematics & Statistics
Director, JHU Environment, Energy, Sustainability & Health Institute

Ph.D. 1983, Cornell University, School of Civil & Environmental Engineering
M.S. 1978, State University of New York, Syracuse
B.S. 1976, South Dakota State University
1972-1974, Prescott Colleges

Research Areas
stochastic electric power planning models
multiobjective and risk analysis
mathematical programming models of imperfect energy markets
environmental and energy systems analysis and economics
ecosystem management

Professional Activities & Honors
Editorial Boards: Competition & Regulation in Network Industries; Economics of Energy & Environmental Policy; The Electricity Journal; EnergyEnergy Economics; EURO Journal on Decision Processes; IEEE Transactions on Power Systems; J. Energy Markets; J. Energy Engineering (ASCE)
Fellow: IEEE and INFORMS
:CAISO Market Surveillance Committee(Chair), Gas Technology Institute Public Interest Advisory Committee
Scientific Advisor, Policy Studies Division,
Energieonderzoek Centrum Nederlands
Guest Professor, School of Electrical Engineering, Southeast University, Nanjing, 2013
Overseas Fellow,
Churchill College, Cambridge, 2009-10
Associate Researcher, University of Cambridge,
Electricity Policy Research Group
Best Paper Awards: ASCE Water Resources Planning & Management Div. (1990); INFORMS Decision Analysis Society (2004); INFORMS Energy, Natural Resources & Environnment Section (2004, 2007)

Dr. Hobbs has been in the Department of Geography & Environmental Engineering since 1995. He also holds a joint appointment in the Department of Applied Mathematics & Statistics, and directs the JHU Environment, Energy, Sustainability & Health Institute. Previously, he was at Brookhaven and Oak Ridge National Laboratories and a member of the Systems Engineering and Civil Engineering faculty at Case Western Reserve University. Dr. Hobbs has held visiting appointments at the Helsinki University of Technology, University of Washington, the Netherlands Energy Research Center, and the Electricity Policy Research Group at Cambridge University. Previously, he has been a Professor of Systems Engineering & Civil Engineering at Case Western Reserve University, Wigner Fellow at Oak Ridge National Laboratory, and an Economics Associate at Brookhaven National Laboratory.



Saamrat Kasina - Ph.D. Student

M.S.E. 2012, Johns Hopkins University
B. Tech., Indian Institute of Technology, Guwahati

Research Areas
Unit Commitment Approximations
Long-Term Transmission Planning
Linkedin: Saamart Kasina

Venkat Prava - Ph.D Student

M. S. E., Johns Hopkins University
B. Tech, Indian Institute of Technology Roorkee


Research Areas
Decision Analysis
Expert Elicitation

Cynthia Bothwell - Ph.D Student

M.S. New Mexico State University - Industrial Engineering, Operations Research emphasis
M.S. University of New Mexico - Statistics, Industrial Statistics emphasis
M.B.A. Edgewood College
B.S. University of Illinois - Electrical Engineering, Power Systems emphasis

Research Areas
Electric Generation Modeling and Planning
Integrated Resource Planning
Energy Policy
Wind Integration
Energy Sustainability

Licensed Professional Engineer with twenty-seven years experience in the electric power industry primarily in generation, transmission and distribution planning. Oversaw public participation and development of integrated resource plans. Provided expert testimony before regulatory commission and environmental board regarding renewable and fossil technologies, energy efficiency programs, and greenhouse gas policies.

Fengwei Hung - Ph.D Student

M. S. E., Johns Hopkins University, Baltimore, MD
M.S. National Sun Yet-sen University, Kaohsiung, Taiwan
B.S. National Sun Yet-sen University, Kaohsiung, Taiwan

Research Areas
Stormwater Management
Adaptive Management
Multi-objective Optimization
Green Infrastructure
Environmetal Policy and Management

Li Zhao - Ph.D Student

M.A. Economics, University of Delaware
B.A. Economics, Johns Hopkins University

Research Areas
Environmental policy and energy markets
Energy economics
Systems dynamics analysis
Linkedin: Li Zhao

Evangelia Spyrou - Ph.D Student

M.E. Electrical and Computer Engineering, National Technical University of Athens (2012)

Research Areas
Electricity market design and market mechanisms
Electricity distribution business models
Energy economics
Energy and environmental policy
Generation and transmission planning

Find me on Linkedin: Evangelia Spyrou

Robin Broder Hytowitz - Ph.D Student

M.S. Electrical, Computer and Energy Engineering, Arizona State University (2013)
B.A. Women's Studies, Albert A. List College (2010)
B.A. Urban Studies and Environmental Science, Barnard College, Columbia University (2009)

Research Areas
Power and energy systems
Mathematical programming models for operations
Renewable energy integration
Electricity markets

Robin's past research includes solar integration into microgrids and electric vehicle infrastructure. She was awarded a Fulbright Fellowship to study wind integration at the Technical University of Denmark.
Linkedin: Robin Hytowitz

Liang Chen - Ph.D Student

M.S. Cornell University, Ithaca, NY

B.S. Tsinghua University, Beijing, China

Research Areas
Water Resource Management
Risk Analysis
Multi-objective Optimization
Hydropower optimization
Craig Bakker - Postdoctoral Fellow

PhD, Engineering; University of Cambridge (2015)
BEng, Mechanical Engineering, minor in mathematics; University of Victoria (2011)

Research Area:
SOptimization, Systems Engineering, Food-Energy-Water Nexus, Climate Change, Differential Geometry

Craig's undergraduate degree focused on computer aided engineering and applied mathematics.  He then moved from Canada to England, and during his doctoral research there, he developed a differential geometry framework for Multidisciplinary Design Optimization. He is now doing postdoctoral work coordinating a multidisciplinary team looking at the effects of climate change on the food supply.  Outside of work, Craig enjoys reading theology, philosophy, and history as well as swing dancing.

Qingyu Xu - Ph.D Student

M.S., Johns Hopkins University (2013-2015), Concentration: Environmental Management and Economics
B.S., Sun Yat-Sen University, Guangzhou, China (2009-2013), Major: Ecology

Research Area:
Large-scale Generation-Transmission Cooptimization; Electricity Market; Energy Economics

Anthony Paul

M.S. in economics, University of Wisconsin, Madison, 2006
B.S. in civil and environmental engineering, and engineering and public policy, Carnegie Mellon University, 1997

Research Area:

Air Quality, Climate Change, Energy and Electricity, Environmental Economics Topics, Carbon Tax, Clean Air Act,Electricity Markets and Regulation,Natural Gas,Renewable and Clean Energy

Anthony Paul is the RFF Center for Energy and Climate Economics Fellow and a PhD candidate in the Department of Geography and Environmental Engineering at Johns Hopkins University with advisor Dr. Benjamin Hobbs. Paul received an MS in economics from the University of Wisconsin, Madison, in 2006. He focuses his research on the power sector in the United States and related issues of regulation, economics, and the environment, and is published in a range of economics and energy policy journals. He has been the lead developer of the RFF Haiku Electricity Market Model since its inception in 1998. 


Brent Eldridge- Ph.D Student

M.S. University of California, Berkeley - Industrial Engineering and Operations Research
B.S. Texas A&M University - Industrial Engineering

Research Area:
Electricity markets
Reactive power supply
Optimal power flow
Optimization and mathematical modeling

Pengcheng Ding - Ph.D Student

Master of Renewable Energy Science and Technology, École Polytechnique, Palaiseau
B.Sc in Physics, Nanjing University, Nanjing

Research Area:
Power and energy systems
energy and environmental policy
generation and transmission planning

Emily Fisher – Assistant Research Professor

Ph.D. Geography and Environmental Engineering, Johns Hopkins University, 2010
M.S.E. Geography and Environmental Engineering, Johns Hopkins University, 2006
Sc.B. Electrical Engineering, Brown University, 1999

Research Area:
Air quality impacts of changes to the US energy system, focusing on downscaling results from energy system models for air quality modeling

Huai Jiang - Research Assistant

B.S. Peking University - Chemistry
M.S.E. Johns Hopkins University - Geography and Environmental Engineering
M.S. Johns Hopkins University - Applied Math and Statistics

Research Area:
Power plant planning
Robust decision-making analysis
Energy price and fertilizer costs

Huai is a master student in Department of Geography and Environmental Engineering and Department of Applied Mathematics and Statistics.He is currently working with Dr. Hobbs and World Bank Group on the project of Climate-resilient Power System Planning. His research interests focus on the field of power energy as well as statistical learning and analysis.

Linkedin: Huai Jiang
Micajah Z. McGarity - Ph.D Student

Operations Research Analyst at the Johns Hopkins University Applied Physics Laboratory

M.S.E. Johns Hopkins University - Geography and Environmental Engineering
B.S. Georgia Institute of Technology - Industrial Engineering

Research Area:
Multi-objective optimization
Health predictive analytics
Disease modeling
Watershed management

Rui Shi - Ph.D Student

M.S. University of Michigan, Ann Arbor - Sustainable Systems,
Certificate of Graduate Studies, Data Science, University of Michigan, Ann Arbor
B.S. Nanjing University - Environmental Science
B.A. Nanjing University - Finance

Research Area:
Climate change risk management
Robust decision making analysis
Energy and environmental policy
Statistical Learning and Data Mining

Linkedin: Rui Shi
Shenshen Li - Research Assistant

M.S.E. Johns Hopkins University - Environmental Health and Engineering
B.S. University of California, Los Angeles (UCLA) - Materials Science and Engineering; Environmental Engineering Minor

Research Area:
Energy storage optimization
Power systems modeling
Renewable energy policy

Shenshen is working with Dr. Hobbs and Western Electricity Coordinating Council (WECC) on the project of planning, operating, and analyzing power systems with energy storage technologies involved by using optimization, modeling, economics, statistical and decision analysis methods.