Key personnel

Meet the leaders of the latest nuclear renaissance


President and CEO

Jay Wileman

With more than 30 years’ experience, Jay has a wealth of international knowledge, having led many global teams to success across the energy spectrum.

Since joining GE in 1994, Jay has held several senior leadership positions in various GE businesses, including energy, mining, rail, and oil and gas in the U.S., Japan, Italy, Australia, and South Africa. Before assuming his current position, Jay served as Senior Vice President, Nuclear Plant Projects and Chief Operating Officer.


Executive Vice President, Advanced Nuclear

Sean Sexstone

Sean joined GEH in February 2022 from Aecon, where he led Aecon’s nuclear group focused on life extension projects, plant life maintenance projects, decommissioning, and nuclear fabrication.

Sean is responsible for furthering the design progress of the BWRX-300 and Natrium projects, supporting customers, meeting product cost targets to ensure market competitiveness, and developing key partnerships for global small modular reactor (SMR) deployment.


Executive Vice President, Services

Susan Korn

With more than 15 years in the engineering consulting business—primarily serving the nuclear power industry—Susan leads GEH’s Services line, including field services and engineering services. 

Susan joined GEH from Constellation Energy Group (previously Exelon) where she spent 19 years in various nuclear leadership roles. She served most recently as the Vice President of Nuclear Project Management and before that as Director of Strategic Projects.


Executive Vice President, Fuels

Mike Chilton

Mike holds two nuclear-related patents and has served on multiple boards.

Mike joined GE from Pegasus-Global Holdings, where he served as President and CEO. Before that, he was the Senior VP of Global Engineering and Construction at The AES Corporation, helping to set strategy, allocate capital, develop business opportunities and growth through the execution of over $8 billion of complex, global power projects.


Chief Commercial Officer

Nicole Holmes

Nicole Holmes leads the global sales, marketing, and contracts team for GE Hitachi Nuclear Energy.  In this role, she heads the team responsible for customer relationships, deal creation, and customer-focused processes, including developing and implementing the business’ commercial strategy.  Nicole is committed to GEH’s mission to provide carbon-free power to the world.

Nicole’s 25+-year energy industry career began in reactor engineering at Duke Energy.  She held positions in engineering and business operations with Duke Energy before joining GE in 2000.

Nicole earned a B.S. in Nuclear Engineering with highest honors from North Carolina State University and an M.B.A from the University of North Carolina at Chapel Hill. She is a graduate of GE’s Lean Six Sigma Program and GE’s Management Course. She chairs the board for the Strategic Energy Institute at Georgia Tech University and serves on the board of the Cape Fear Salvation Army.

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