Leadership Team

As president and chief executive officer of Canadian Nuclear Laboratories, Dennis Carr is responsible for leading CNL’s 4,000+ employees in the safe and effective execution of CNL’s vital science and environmental missions for the benefit of Canada and the Laboratories’ government and private customers.

Dennis is a seasoned executive with over four decades of leadership in nuclear site operations, environmental remediation and large-scale project management. Most recently serving as president and CEO of Savannah River Nuclear Solutions (SRNS), Dennis provided effective leadership for one of North America’s most complex nuclear facilities, managing a workforce of 7,000. Prior to this role, Dennis served as chief operating officer of SRNS, where he was responsible for all nuclear operations at the Savannah River Site and oversaw the Savannah River National Laboratory.

Len Clewett is responsible for safely leading day-to-day operations for science & technology, construction, site infrastructure and environmental management functions at all of CNL’s sites.

Len is an executive leader with more than 40 years of experience in the nuclear industry, including over 25 years in leadership roles. He served as executive vice president and chief nuclear officer at Bruce Power, one of the largest nuclear generating facilities in the world, where he oversaw and safely integrated complex, high-hazard operations of the eight-reactor site across two stations, leading development and implementation of strategic partnerships, continuous improvement initiatives and change management plans.

In addition to his direct nuclear industry experience, Len has held roles as chair of the World Association of Nuclear Operators International Participants Forum, co-chair of the Canadian Regulator/Canadian Nuclear Operators Working Group, chair of the Canadian Chief Nuclear Officer Forum, and as a member of the Executive Advisory Committee for the North American Young Generation in Nuclear.

As chief of staff for Canadian Nuclear Laboratories, Amy Boyette provides executive support and strategic counsel to the president and chief executive officer to optimize organizational leadership, effectiveness and communication. She is responsible for fostering an environment of high performance, continuous improvement and cross-functional collaboration throughout the organization, including effective executive and board-level communication. Amy also champions employee engagement initiatives and leads independent special projects and assignments on behalf of the CEO.

She has more than 34 years of experience in the nuclear industry, primarily in the U. S. Department of Energy (DOE) and National Nuclear Security Administration (NNSA), where she demonstrated leadership in communications, building successful stakeholder relations and international technical program management.

Mike Auble is responsible for ensuring that CNL’s facilities and infrastructure are safely maintained and available to support mission work today, and evolving to provide the necessary resources to support future initiatives.

Mike is a certified project manager with more than 35 years of leadership and hands-on experience in facility operations and maintenance in U.S. Department of Energy research laboratories, commercial nuclear power utilities and U.S. Navy vessels. In particular, he brings insights from serving at U.S. national laboratories in California, New Mexico and Idaho.

Andy Beckwith is responsible for decommissioning Whiteshell Laboratories to restore and protect the environment. Whiteshell Laboratories played a key role in the nuclear history of Canada, serving as the testing site for the WR-1 research reactor that contributed greatly to nuclear science in Canada.

Andy has 36 years of experience at large, complex nuclear sites. He brings depth and breadth of decommissioning and waste management experience having managed decommissioning of facilities and reactors, high level waste retrievals/shipments, and environmental remediation.

Darcey Bolin is responsible for current and upcoming construction activities as CNL continues to upgrade its infrastructure to facilitate its science and technology and environmental missions.

Darcey is a construction management and leadership expert with hands-on experience delivering complex construction projects on-time and on-budget. In addition to her government work, her experience includes more than 15 years in commercial construction.

Stacia Caouette-Boss plays a pivotal role in shaping the organization’s workforce strategy and culture to drive innovation and safety. Her responsibilities include leading CNL’s strategic workforce planning, talent acquisition, employee relations and engagement, organizational development, labour relations, compliance and governance, and training and development for its 4,000+ employee workforce.

Stacia is a passionate leader with 31 years of human resources and business leadership experience with companies in the energy, aerospace, automotive and manufacturing sectors in Canada. She is recognized for seamlessly integrating people strategies with business objectives to drive growth, enhance employee engagement and foster organizational success.

As Vice-President and Chief Financial Officer for Canadian Nuclear Laboratories, Sean Bovingdon is responsible for CNL’s finance, supply chain, information technology and other key business services functions.

A proven leader with 30 years of financial management experience, Sean is trusted as a senior executive in a variety of industries, including energy, consumer products, utilities and technology. He has a record of successfully building collaborative teams, mentoring future leaders, providing strategic direction focused on commercial growth and turnarounds, demonstrating positive leadership, and ensuring rigorous compliance with both provincial and Government of Canada regulatory bodies.

John Lopez drives excellence in baseline development, cost and schedule oversight, and long-range strategic visioning aligned with customer mandates.

With nearly four decades of experience in environmental programs and project controls, John is a recognized leader in strategic planning and operational execution across some of the U.S. government’s most complex cleanup initiatives.

Eric is responsible for CNL’s internal communications, external communications, community outreach and government relations initiatives.

Fluent in both English and French, Eric is a leader in communications and engagement with over 20 years of experience successfully building trust and relationships with the public and Indigenous Nations and communities, and over a decade of experience working on clean energy projects across Canada.

James Miller is responsible for the full suite of deactivation, decontamination, decommissioning and demolition of legacy facilities at CNL as well as safely managing waste materials disposition.

James is an accomplished leader in DWM and environmental remediation, with 37 years of experience in hands-on and leadership roles at large, highly complex projects for the U.S. Department of Energy (DOE) and other government and commercial clients in high-hazard, highly regulated environments.

John Osborne is responsible for ensuring all nuclear operations are safe and compliant as well as maintaining an effective interface with CNL’s regulatory agencies.

John is a proven transformational leader with 34 years of experience in operations, including 20 years of success in roles of increasing responsibility at CNL.

John began his CNL career as an engineer and assumed positions of increasing responsibility in maintenance, radiation protection, emergency preparedness and nuclear programs before becoming the general manager for the National Research Universal Reactor.  Later, John accepted new senior leadership roles, including working as Atomic Energy of Canada Limited’s (AECL) Vice-President for Capital Programs, Operations & Security, where he was responsible for overseeing CNL’s activities with respect to the revitalization of the Chalk River site, as well as ongoing safe and secure operations at all AECL-owned sites.

Dr. Monica Regalbuto oversees a research program that pursues new opportunities and investments, including nuclear innovation efforts contributing to better health outcomes through advancements in nuclear medicine and building a more sustainable energy system to contribute to Canada’s climate goals.

Most recently, Monica led the development of the U.S. nuclear fuel cycle strategy at the Idaho National Laboratory to ensure adequate supplies for fuel for deployment of advanced reactors. Monica was previously nominated and confirmed as the assistant secretary for the Office of Environmental Management (EM) for the U.S. Department of Energy, where she was responsible for managing environmental cleanup across 16 sites in 11 states. Preceding her nomination, Monica served as EM’s associate principal deputy assistant secretary, responsible for directing in-depth analysis in critical technical, scientific, business and policy management issues. She has also held senior technical and leadership roles across a number of U.S. federal organizations, including Argonne National Laboratory.

She currently serves as a member of the Nuclear and Radiation Studies Board at the National Academy of Sciences and the American Nuclear Society.

Jennifer Tidmarsh is responsible for building and maintaining long-term relationships with Indigenous Nations and communities with the goal of achieving mutual respect, learning and understanding. Her work also includes supporting opportunities for economic benefits for Indigenous Nations and communities.

Jennifer brings nearly 20 years of experience driving organizational change within the energy industry with a focus on deepening understanding of the need for Indigenous reconciliation in corporate Canada. She has led the development of programs that deliver meaningful economic benefits to Indigenous peoples and businesses.

As the executive authority for HSSE, Megan provides strategic direction and oversight to Health Safety Security and Environmental (HSSE) programs and services, ensuring that they continue to serve as essential enablers of varied missions. Megan is also driving necessary improvements in the HSSE program to achieve and sustain effective, efficient compliance with regulatory requirements, integrated work control, and a culture where we are always driving toward zero accidents and injuries.

David Snopek brings 28 years of experience in environment, health & safety, regulatory affairs and compliance, and engineering roles, with over 17 years of responsibility for compliance under Canadian nuclear requirements. He brings lessons learned supporting Canadian, U.S. and UK projects, and he previously served in senior safety and regulatory affairs positions with BWXT and GE Hitachi Nuclear Energy Canada.

An accomplished senior legal executive with nearly 25 years of experience, Gabe oversees all legal, insurance, intellectual property, corporate secretariat, ethics and business conduct, import, and export activities and operations at CNL, helping the organization advance business objectives and interests in a risk-mitigated manner. Whether it is navigating complex government and regulatory requirements, managing large-scale contracts and supply chain agreements, or developing CNL’s litigation strategies, Gabe provides leadership and experience invaluable to achieving CNL’s future goals and missions.

J.C. was most recently responsible for tritium operations and programs at the Savannah River Site. He brings almost 40 years of experience in nuclear operations, policy, and programs from his work on U.S. National Nuclear Security Administration and U.S. Department of Defense programs. He is a trusted leader who will be focused on innovation and process improvements to help us with operational efficiency and resource optimization across CNL.

Justin Hannah is a successful leader in business development in the Canadian nuclear and energy industries, with over 20 years of experience in both the commercial and government sectors. He brings expertise in strategic planning, optimizing business growth and marketing, having previously worked at Ontario Power Generation, Natural Resources Canada, and Cavendish Nuclear.

Dr. Bauer is a respected veteran in nuclear sector strategic planning and lifecycle operation and stewardship. She currently serves as the deputy — nuclear security and laboratories for BWXT’s Technical Services Group, where she oversees contract operations and governance for nuclear production facilities and national laboratories. Dr. Bauer has more than 30 years of experience in a variety of facilities, operations, commissioning and decommissioning leadership roles in support of the U.S. Department of Energy and National Nuclear Security Administration. She holds a bachelor’s degree in chemistry from the University of Memphis as well as master’s and Ph.D. degrees in environmental health physics, both from Purdue University.

Mr. Blackford has a proven track record of safe and responsible work execution in some of the most difficult, hazardous and technically challenging environments in the energy and cleanup industry.  He currently serves as a senior program manager for Amentum Environment & Energy, Inc. Blackford has previously held executive leadership positions at the Idaho Environmental Coalition, CH2M Hill Plateau Remediation Company and Savannah River Remediation.  He holds a bachelor’s degree in marine engineering technologies from the California Maritime Academy.

Dr. Demeter is a dedicated health provider and researcher, educator and freelance journalist. He has been a nuclear medicine staff physician at Shared Health Manitoba since 2002 and a consultant to Laurentis Energy Partners since 2024. He served as a commissioner on the Canadian Nuclear Safety Commission from 2017 to 2023 and is a former committee member of the International Commission on Radiological Protection. He has held a number of senior leadership positions including the department head and academic chair of diagnostic imaging at the University of Manitoba. He has earned a number of academic degrees, including a doctor of medicine from the University of Saskatchewan, a master of health physics from the Illinois Institute of Technology, and a master of health science from the University of Toronto.

Mr. Granville is an accomplished, forward-thinking clean energy executive. The former chief operations officer and chief nuclear officer for Ontario Power Generation, he held positions of increasing responsibility for the utility across his 39+ year career. He serves on the boards of the Nuclear Waste Management Organization and Georgian Bay General Hospital and is a former member of the board of Women in Nuclear Canada.  He also served on the Institute of Nuclear Power Operations and World Association of Nuclear Operations CNO Advisory Team. He holds a bachelor’s degree in mechanical engineering from the University of Waterloo.

Mr. Harris is a collaborative, hands-on leader with rich, global experience in engineering, energy generation and infrastructure. He has served as the president and chief executive officer of Kinectrics, Inc. since 2003, and he oversees a broad portfolio of client-based services that safely mitigate risks, extend asset life and maintain safe and reliable operation across the electrical energy sector. He holds a BSc (Hons) degree in mechanical engineering from the University of Leeds and is a member of the UK Institute of Directors Training Program.

Mr. Hartwick has over 40 years of experience in a variety of fields such as finance, investment, corporate leadership and governance, risk management, and stakeholder engagement, with 35 years in the finance and energy sectors.

In 2024, Mr. Hartwick retired from his position as president and CEO of Ontario Power Generation, one of North America’s largest, most diverse electricity generators and clean technology innovators. Under Mr. Hartwick’s tenure spanning nearly 9 years, OPG released its first-ever climate change plan, advanced its electrification efforts through the Ivy charging partnership and PowerON subsidiary, launched a reconciliation action plan, and moved forward on the development of Canada’s first small modular reactor.

Prior to joining OPG, Mr. Hartwick held several senior positions, including partner at Ernst & Young LLP, CFO of Hydro One, interim president and CEO of Atlantic Power Corporation, CFO and CEO of Just Energy Corporation, and CFO and treasurer at Wellspring Financial Corporation.

Mr. Hartwick is a chartered professional accountant with an honours bachelor of business administration degree from Trent University.

Mr. Hoskins is vice president for business development for BWXT’s Technical Services Group.  In this role, he oversees corporate growth by formulating and directing strategies to capture emerging opportunities in the national laboratory, national security, environmental remediation and nuclear energy settings. He has also held senior finance and consulting positions in both the commercial and government nuclear sectors. He holds a bachelor’s degree from Virginia Polytechnic Institute and State University and an MBA from the University of North Carolina at Chapel Hill.

Ms. Primeau is a trailblazing Indigenous leader and energy-sector veteran. Since 2021, she has been a board member for Ontario Power Generation, where she provides governance oversight across operations, strategic energy and nuclear initiatives, and stakeholder engagement. She served as a shift manager in the operations division for Bruce Power, where she worked for more than 30 years. Ms. Primeau is a member of the Nipissing First Nation and was a founding member of the Ontario Hydro Native Circle. She is also a member of the University of Waterloo Indigenous Advisory Council, United College board of governors, the University of Waterloo board and serves a trustee for Ingenium. She holds a bachelor’s degree from the University of Waterloo.

Dr. Nigel Smith is executive director of TRIUMF, Canada’s particle accelerator centre, a role he assumed in May 2021, and to which he has recently been re-appointed. Previously, Dr. Smith served as executive director of SNOLAB for 12 years and remains as emeritus executive director there. He is an honorary professor and adjunct professor at the University of Victoria, and holds a visiting professorial chair at Imperial College, London.

As TRIUMF director, Dr. Smith draws on an extensive portfolio of strategic and leadership experience in the development of science research facilities in the U.K. and Canada. He is a fellow of the Canadian Institute for Advanced Research (CIFAR) in the Earth4D programme, co-chair of the IUPAP neutrino panel, and was elected to the Royal Society of London earlier this year. He is chair or a member of advisory groups for three underground facilities and the board chair of the Institute for Quantum Computing Canada.

As a scientist, Dr. Smith has pursued a wide breadth of world-leading research in extreme environments, including astrophysics and astronomy, deep underground science and dark matter searches. He holds a US congressional medal for Antarctic service, with bronze winter-over bar.

Ms. Swami is an accomplished nuclear sector leader with a broad and deep experience base. She is currently the president and chief executive officer of the Nuclear Waste Management Organization, where she directed the site selection process for Canada’s permanent deep geological repository. She previously served in roles of increasing responsibility, including as senior vice president for decommissioning & nuclear waste management, at Ontario Power Generation. She holds a B.Sc. in chemical engineering from Queen’s University and an MBA from the York University Schulich School of Business. She also serves as a champion for Women in Nuclear Canada.

Dr. Dame Sue Ion spent over 3 decades in the nuclear sector before moving on to international leadership and advisory positions across several disciplines including skills development, energy policy, and innovation. Dame Sue is a Fellow of both the Royal Academy of Engineering and the Royal Society.

Prof. Dewi M. Lewis is an internationally acknowledged expert in radioactive pharmaceuticals using cyclotron accelerators and nuclear research reactors. Management experience has involved operations management, establishing research collaborations, mergers & acquisitions and joint venture creation in transactions usually involving isotope and medical applications organisations, as well as managing clinical trials.

Dr. Regis Matzie bring the experience of a 35-year career in the commercial nuclear power industry. Much of this career has been devoted to the development of advanced nuclear systems and advanced fuel cycles, and he is the author of more than 120 technical papers and reports on these subjects.

Dr. M. Grace Burke, an industry-recognized scientific leader in the fields of electron microscopy, advanced microstructural characterization, irradiation embrittlement, and the technology of materials for nuclear power applications.  She has approximately 30 years in industry-based R&D in structural materials research and environment-sensitive materials performance.

Prof. Michael Corradini is a globally recognized leader in mechanical and nuclear engineer with research interests centered primarily in thermal hydraulics and multiphase flow. He bring particular expertise in the areas of reactor operation, reactor safety, reprocessing and recycling, and risk assessment.

Dr. Starnes Walker is a senior executive with 35+ years of experience in developing critical programs and strategic system alignment across domestic and global technical sectors. Dr. Walker’s assertive leadership in research, development and engineering has resulted in enhanced national security.

Mr. Andrew T.B. Stuart bring deep experience in areas of hydrogen research water electrolysis and deuterium enrichment technologies. He has represented Canada in International Energy Agency Hydrogen Annex activities and is a listed inventor on over 10 unique patents and patent applications.