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Industrial Processes

Christopher Greig

Theodora D. ’78 and William H. Walton III ’74 Senior Research Scientist at the Andlinger Center for Energy and the Environment

Gerhard R. Andlinger Visiting Fellow in Energy and the Environment (2018-2020)

Andlinger Center Executive Committee

Phone Number: 609-258-7833
Email Address:

Research Description:

Chris Greig is the Theodora D. and William H. Walton III Senior Research Scientist at Princeton University’s Andlinger Center for Energy and the Environment. He has a Ph.D. in Chemical Engineering, is a fellow of the Australian Academy of Technology and Engineering (ATSE), and holds an adjunct professorial appointment at the University of Queensland in Australia.


His ten-year academic career follows almost three decades of international experience in the private sector, firstly as a company founder, and then in senior executive and non-executive director roles in major engineering, energy, and resources companies. These included the CEO of ZeroGen (one of the early CCS ventures), the Deputy Chair of Gladstone Ports Corp, and the Non-Executive Director of several listed engineering firms.


At Princeton, Chris initiated the Rapid Switch Initiative at the Andlinger Center and is an Affiliated Faculty member of Princeton’s High Meadows Environmental Institute. His research combines, engineering, business, and social sciences to explore the challenges of rapid decarbonization for different regions and sectors. He is particularly focused on how to bridge modeled energy scenarios and real-world implementation. He co-led Princeton’s influential Net-Zero America (2020) study which describes five net-zero emissions pathways for the United States at an unprecedented level of detail.  Chris is also leading Princeton’s efforts on similar collaborative studies with universities in Australia, and Asia.

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Warren Powell

Professor of Operations Research and Financial Engineering, emeritus

Location: 230 Sherrerd Hall
Phone Number: 609-258-5373
Email Address:

Research Description:

Models for the design and control of a broad range of problems in energy systems, emphasizing problems that involve decisions and uncertainty. A major focus has been the study of high penetrations of renewables, and the design and control of energy storage systems. We are also working on models for driverless fleets of electric vehicles, uncertainty models of wind, solar and electricity prices, and the economics of energy portfolios.

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Michele L. Sarazen

Assistant Professor of Chemical and Biological Engineering

Andlinger Center Associated Faculty

Location: A319 Engineering Quad
Phone Number: 609-258-8331
Email Address:

Research Description:

Mechanistic investigations of heterogeneous catalysis, carbon capture, and environmental separations via combined synthetic, kinetic, and theoretical techniques; improving efficiencies for conversions of conventional feedstocks to fuels and chemicals and developing renewable alternatives to fuels and chemicals

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