Associate Professor Marta Hatzell has been appointed interim deputy director of the Georgia Tech Strategic Energy Institute (SEI).

Hatzell currently leads the industrial decarbonization and clean catalysis initiative at SEI and holds joint appointments in the George W. Woodruff School of Mechanical Engineering and the School of Chemical and Biomolecular Engineering. Most recently, she led the Materials for Carbon-Neutral Fuel Production track at this year’s Energy Materials Day, which attracted over 400 participants from academia and industry. 

“Marta has been an outstanding addition to SEI’s initiative lead program, where her contributions have already made a significant impact. I am excited to see her further engage with the Georgia Tech energy community in this role,” said Christine Conwell, SEI interim executive director.

Hatzell’s research group focuses on exploring sustainable catalysis and separations to enable clean energy, water, and food production. She serves as the site principal investigator and research thrust leader for CASFER, the National Science Foundation Engineering Research Center (NSF-ERC) with funding of $26 million for advancing sustainable fertilizer production. She is also a principal investigator in the Department of Energy’s $100 million National Alliance for Water Innovation project. 

Hatzell is the recipient of the NSF Early CAREER Award for her work on distributed solar fertilizers and received the Gordon and Betty Moore Inventor fellowship to work on a low-cost, photocatalytic air-breathing system that converts air into liquid, ammonia-based fertilizer. She also received the 2020 Sloan Research Fellowship in Chemistry and the American Chemical Society’s (ACS) Sustainable Chemistry Lectureship Award in 2024. Hatzell serves as a senior editor of the ACS Energy Letters journal.

Before her role at Georgia Tech, she was a postdoctoral researcher in the Department of Materials Science and Engineering at the University of Illinois Urbana-Champaign. She holds a Ph.D. in mechanical engineering from Penn State University. 

“I’m looking forward to working with the SEI staff and faculty to continue to grow Georgia Tech’s impact on the rapidly changing energy sector,” says Hatzell.  

Associate Professor Matthew McDowell has been selected as the next Associate Chair for Research in the George W. Woodruff School of Mechanical Engineering. He will step into the role on January 1, 2025.

The Associate Chair for Research is responsible for working with the Woodruff School’s faculty to develop a strategic research plan for future growth and investments in the School, as well as identifying new research opportunities, helping to foster strategic relationships with government, industry, and foundations, and synergizing research efforts with other units in the College of Engineering and across the Institute.

“I am thrilled to be chosen for this role, and I look forward to working with the faculty, students, researchers, and staff of the Woodruff School to enhance and support our world-class research program,” said McDowell.

McDowell joined Georgia Tech in the fall of 2015 as an assistant professor with a joint appointment in the Woodruff School and the School of Materials Science and Engineering (MSE). He was named Carter N. Paden, Jr. Distinguished Chair earlier this year and serves as co-director of the Georgia Tech Advanced Battery Center (GTABC). Through this center, McDowell and Professor Gleb Yushin (MSE) are building community at the Institute, enhancing research and educational relationships with industry partners, and creating a new battery manufacturing facility on Georgia Tech’s campus.

“I am excited to work with Matt in advancing the research priorities and goals of the Woodruff School,” said Devesh Ranjan, Eugene C. Gwaltney Jr. School Chair and professor. “Through his exceptional leadership of the Georgia Tech Advanced Battery Center, Matt has demonstrated a deep commitment to excellence in scholarship and to fostering partnerships that drive innovative, collaborative research across the Institute. I am confident in the positive transformation he will bring to our program in this new role.”

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Johney Green Jr., M.S. ME 1993, Ph.D. ME 2000, has been chosen to serve as the new laboratory director for Savannah River National Laboratory (SRNL). A proud Yellow Jacket, Green received both his master’s and doctoral degrees in mechanical engineering from Georgia Tech and currently serves on the Strategic Energy Institute’s (SEI) External Advisory Board. He also served on the board of the George W. Woodruff School of Mechanical Engineering from 2017 to 2022.

“SRNL has truly found an exceptional leader in Johney. His vision and dedication are inspiring, and I am genuinely excited to see the remarkable contributions he will make in advancing SRNL,” said Christine Conwell, SEI interim executive director. “We look forward to his continued partnership with SEI and the positive impact he will bring to the energy community in 2025 and beyond.”

The Battelle Savannah River Alliance (SRNL’s parent organization) selected Green for this role, describing him as “a dynamic leader who brings deep, wide-ranging scientific expertise to this new position.” 

With an annual operating budget of about $400 million, SRNL is a multiprogram national lab leading research and development for the Department of Energy’s (DOE) Offices of Environmental Management and Legacy Management and the National Nuclear Security Administration’s weapons and nonproliferation programs. 

Green currently serves as associate laboratory director for mechanical and thermal engineering sciences at the National Renewable Energy Laboratory (NREL). In this position, he oversees a diverse portfolio of research programs including transportation, buildings, wind, water, geothermal, advanced manufacturing, concentrating solar power, and Arctic research. His leadership impacts a workforce of about 750 and involves managing a budget of more than $300 million.

At NREL, Green transformed the lab’s wind site into the innovative Flatirons Campus and transitioned the campus from a single-program wind research site to a multiprogram research campus that serves as the foundational experimental platform for the DOE’s Advanced Research on Integrated Energy Systems (ARIES) initiative.

"We are immensely proud to call Johney a Woodruff School alumnus. His achievements and service to Tech through advisory board engagement inspires us, and we are excited to see him step into this prestigious role at SRNL. We look forward to deepening our collaboration with him as he continues to make a powerful impact,” said Devesh Ranjan, Eugene C. Gwaltney, Jr. School Chair and professor in the Woodruff School.

Prior to his role at NREL, Green held several key leadership roles at Oak Ridge National Laboratory (ORNL). As director of the Energy and Transportation Science Division and group leader for fuels, engines, and emissions research, he managed a broad science and technology portfolio and user facilities that made significant science and engineering advances in building technologies; sustainable industrial and manufacturing processes; fuels, engines, emissions, and transportation analysis; and vehicle systems integration. While Green was the division director, ORNL developed the Additive Manufacturing Integrated Energy (AMIE) demonstration project, a model of innovative vehicle-to-grid integration technologies and next-generation manufacturing processes.

Early in his career, Green conducted combustion research to stabilize gasoline engine operation under extreme conditions. During the course of that research, he joined a team working with Ford Motor Co., seeking ways to simultaneously extend exhaust gas recirculation limits in diesel engines and reduce nitrogen oxide and particulate matter emissions. He continued this collaboration as a visiting scientist at Ford's Scientific Research Laboratory, conducting modeling and experimental research for advanced diesel engines designed for light-duty vehicles. On assignment to the DOE’s Vehicle Technologies Office, Green also served as technical coordinator for the 21st Century Truck Partnership. He also contributed to a dozen of ORNL's 150-plus top scientific discoveries.

Green was the recipient of a National GEM Consortium Master’s Fellowhip sponsored by Georgia Tech and ORNL, and he served as the National GEM Consortium chairperson from 2022-2024. He is a Fellow of the American Association for the Advancement of Science and an SAE International Fellow. He has received several awards during his career and holds two U.S. patents in combustion science.