Executive Management

John L. Hopkins is President and CEO of NuScale Corp. and has served as a member of the board of directors since December 2012. He also served as NuScale LLC's Executive Chairman from December 2012 to December 2021.

Mr. Hopkins started his career at Fluor Corporation in 1989, held numerous leadership positions in both global operations and business development and served as a corporate officer from 1999 until 2012. Mr. Hopkins is active in a variety of professional and business organizations, and currently serves on the Executive Committee, Audit Committee and Compensation Committee of the United States Chamber of Commerce, Washington, D.C. and is a member of the Nuclear Energy Institute Executive Committee and Energy Task Force Member, Atlantic Council and the Group of Vienna.

Mr. Hopkins has previously served with the DOE’s Nuclear Energy Advisory Committee, was a Senior Energy Policy Advisor of I Squared Capital, New York, and has also served as the Senior Executive Member of both the Fluor Netherlands and Fluor United Kingdom board of directors, Chairman of the Board for Savannah River Nuclear Solutions, LLC and as a Director of the Business Council for International Understanding.

Mr. Hopkins holds a Bachelor of Business Administration degree in finance from the University of Texas at Austin. He also completed advanced management programs at the University of California, Irvine, Thunderbird University’s international management program.

José N. Reyes, Ph.D., co-founded NuScale LLC, co-designed the NuScale passively-cooled small nuclear reactor and has served as the company’s CTO since 2007. Dr. Reyes is an internationally recognized expert on passive safety system design, testing and operations for nuclear power plants. He has served as a United Nations International Atomic Energy Agency technical expert on passive safety systems, is a co-inventor on more than 110 patents granted or pending in 20 countries and has received several national awards including the 2013 Nuclear Energy Advocate Award, the 2014 American Nuclear Society Thermal Hydraulic Division Technical Achievement Award, the 2017 Nuclear Infrastructure Council Trailblazer Award and the 2021 American Nuclear Society Walter H. Zinn Medal.

Dr. Reyes is a fellow of the American Nuclear Society and a member of the National Academy of Engineering. In the past, he has served as head of the Oregon State University (OSU) Department of Nuclear Engineering and Radiation Health Physics, directed the Advanced Thermal Hydraulic Research Laboratory and was the Co-Director of the Battelle Energy Alliance Academic Center of Excellence for Thermal Fluids and Reactor Safety in support of the Idaho National Laboratory mission.

Dr. Reyes currently serves as a Professor Emeritus in OSU’s School of Nuclear Science and Engineering. He holds Ph.D. and Master of Science degrees in nuclear engineering from the University of Maryland and a Bachelor of Science degree in nuclear engineering from the University of Florida. He is the author of numerous journal articles and technical reports, and he has given lectures and keynote addresses to professional nuclear organizations in the United States, Europe and Asia.

Dale Atkinson has served as COO and Chief Nuclear Officer since he joined NuScale in 2014, where he is responsible for operations, engineering, projects, supply chain services, quality assurance, human resources, information technology, corporate services and regulatory affairs. Before joining NuScale, Mr. Atkinson worked at Energy Northwest where he served as Chief Nuclear Officer and VP of Nuclear Generation (2005-2008), VP of Technical Services (2009-2012) and VP of Energy Business Services (2013-2014).

Mr. Atkinson has 44 years of experience in the nuclear power industry, including five years of service as an officer serving on nuclear attack submarines in the United States Navy and has provided consulting services on initial power plant testing to several utilities.

Mr. Atkinson is a member of the Oregon State University (OSU) Academy of Distinguished Engineers, a member of the OSU Dean of Engineering’s Leadership Council, former Chairman of the Utilities Service Alliance representing 26% of the United States nuclear generating fleet and is the former Chairman of the advisory board for the Nuclear Science and Engineering department at OSU.

Mr. Atkinson holds a bachelor's degree in nuclear engineering from OSU, a Master of Engineering from Pennsylvania State University and a Master of Business Administration from the University of Washington. He is also a graduate of the Harvard Business School Advanced Management Program.

Chris Colbert has served as CFO of NuScale since February 2021 and as the company’s Chief Strategy Officer since 2014. Previously, Mr. Colbert served as NuScale’s Chief Operating Officer from 2011 to 2014.

Mr. Colbert joined NuScale from UniStar Nuclear Energy, LLC, where he was SVP for Projects and Services from 2007 to 2011. While at UniStar, Mr. Colbert was responsible for the deployment of the United States evolutionary power reactors (EPR) at UniStar’s existing nuclear power plant sites and the provision of licensing and other project development services to other United States EPR projects. Before joining UniStar, Mr. Colbert worked for a number of companies over nearly 15 years developing and financing over 6500 MW of fossil-fueled power projects. Mr. Colbert began his career at GE Aircraft Engines as an engineer and later transferred to the General Electric Company Corporate Audit Staff.

Mr. Colbert holds a B.S. in electrical engineering with a minor in computer science from the Massachusetts Institute of Technology and an M.B.A. from the Walter A. Haas School of Business in Berkeley, CA. He is also a chartered financial analyst.

Bob Temple has served as General Counsel and Secretary of NuScale since 2016. Before joining NuScale, Mr. Temple served as General Counsel and Corporate Secretary for Toshiba America Energy Systems Corporation and as General Counsel and Corporate Secretary for Toshiba America Nuclear Energy Corporation.

Previously, Mr. Temple was Assistant General Counsel for The Babcock & Wilcox Company, which he joined in 2011 from the Washington, D.C. office of Haynes and Boone, LLP. During his career in private law practice, Mr. Temple worked as an associate, of counsel, or partner in the Chicago and Washington, D.C. offices of the law firms of Winston & Strawn, Hopkins & Sutter and McGuireWoods. Prior to that, Mr. Temple was Deputy General Counsel, VP and Secretary at CPS Energy from 2004 to 2009 and served as an in-house attorney with Commonwealth Edison (now Exelon) from 1995 to 1997.

Before becoming an attorney, Mr. Temple was a licensed senior reactor operator at LaSalle County Station and served in the United States Navy aboard nuclear submarines. Mr. Temple earned his J.D. from Illinois Institute of Technology’s Chicago-Kent College of Law and his Bachelor of Science degree from Southern Illinois University.

Tom Mundy has served as NuScale’s CCO since 2017. In this role, he oversees commercial global business activities, including marketing, communications, business development and sales and services functions for the United States and abroad.

Prior to this position, Mr. Mundy served as NuScale’s Managing Director for the United Kingdom and Europe from 2015 to 2017, where he was responsible for establishing NuScale’s business presence. Mr. Mundy initially joined NuScale in 2012 as the VP of Program Management and was responsible for the timeliness and budget performance of major internal projects.

Before joining NuScale, Mr. Mundy served as founding CEO and President of Exelon Nuclear Partners, LLC, a subsidiary of Exelon Generation Company, LLC from 2009 to 2012 and as VP of Nuclear Development from 2007 to 2009. In addition to the various positions Mr. Mundy held in Exelon’s energy delivery, nuclear and fossil generation organizations, he also held positions with GPU Nuclear Corporation and the Newport News Shipbuilding and Dry Dock Company. He was certified as a boiling-water reactor Shift Technical Advisor and is a licensed attorney in Pennsylvania and New Jersey where he has practiced for several years.

Mr. Mundy holds a B.S. in marine engineering from the United States Merchant Marine Academy, a Master of Engineering Administration degree from George Washington University and a J.D. (with honors) from Temple University Beasley School of Law. Mr. Mundy is also a registered patent attorney.

Clayton Scott joined NuScale as EVP, Business Development in 2022. In this role, he is responsible for the global sales, marketing and communications for NuScale. Mr. Scott brings more than 40 years of diverse global experiences allowing him the ability to open markets and raise brand awareness.

Prior to NuScale, from February 2018 through December 2021, Mr. Scott was a SVP – Global Sales, Deputy Director I&C Business Unit for Framatome, responsible for the global I&C sales, P&L within the group and a global footprint of more than 2,000 staff. Prior to Framatome, Mr. Scott served as the Chief Nuclear Officer for Schneider Electric from January 2014 to February 2018, responsible for the company’s global nuclear organization, with offices and facilities in North America, Europe/MENA and Asia. Mr. Scott previously served as the Chief Nuclear Officer of Invensys’s global nuclear business. He was appointed by the International Atomic Energy Agency (IAEA) to chair a taskforce on harmonizing digital licensing issues globally, and began his career as an instrumentation technologist for Ontario Hydro, where he was involved in the commissioning and start-up of four CANDU units at the Pickering Nuclear Power Station in Ontario, Canada.

Mr. Scott is a frequent lecturer on topics within the energy sector. He serves as a member of the University of Tennessee Advisory Board, member of the Xiamen University Advisory Board in China and is Chairman of Board for the Framatome Company in South Korea. Mr. Scott carries dual citizenship between the U.S. and Canada, and has a Bachelor of Science degree in electrical engineering from the University of California, Irvine, Leading with Finance from the Harvard Business School online.