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2026 ANS Winter Conference & Expo
November 15–18, 2026
Phoenix, AZ|Arizona Grand Resort & Spa
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Nuclear Science and Engineering
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Westinghouse, Nordion, and PSEG team up to produce Co‑60 in the United States
This past January, Westinghouse Electric Company, Nordion, and PSEG Nuclear formalized agreements to implement newly developed cobalt-60 production technology at Units 1 and 2 of PSEG’s Salem nuclear power plant in New Jersey, with the Co-60 to be supplied to Nordion. Through an ongoing joint initiative, the companies aim to harness U.S. pressurized water reactors to produce a key medical isotope and build the first commercial-scale Co-60 production platform in the United States.
Utility Working Conference and Vendor Technology Expo (UWC 2024)
Diane Leopold is executive vice president and chief operating officer for Dominion Energy. She is the senior executive responsible for all the company’s operating segments and related construction functions.
Leopold oversees: Dominion Energy Virginia, a vertically integrated electric utility with generation, transmission and distribution assets providing electric service to about 2.7 million customer accounts in Virginia and northeastern North Carolina; Dominion Energy South Carolina, a natural gas and electric utility serving 1.1 million customer accounts; and Contracted Energy, consisting of Millstone Power Station, dozens of solar generating facilities with long-term power purchase agreements in nine states, and a renewable natural gas business.
Leopold joined Dominion Energy in 1995 and became an officer in 2004. She held a wide range of executive roles in operational, financial, and commercial areas throughout the company. She became Dominion Energy’s executive vice president and co-chief operating officer in December 2019 and assumed her current role in October 2020.
In addition to being on the board of directors of Markel Corporation, she currently serves on various industry, non-profit and community boards. She is on the boards of the Nuclear Electric Insurance Limited, GROW Capital Jobs Foundation, the Jamestown-Yorktown Foundation and World Pediatric Project. Leopold serves on the executive committee, board and is past-chair of the American Gas Association and is past-chair of the Interstate Natural Gas Association of America.
Leopold graduated from the University of Sussex in the United Kingdom in 1989 with a bachelor’s degree in mechanical and electrical engineering. She received a master’s degree in electrical engineering (energy conversion, power, and transmission) in 1993 from George Washington University and an MBA in 1998 from Virginia Commonwealth University.
Last modified June 25, 2024, 3:43pm EDT