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Conference Spotlight
2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Latest News
Holtec pulls out of New Mexico SNF interim storage project
Holtec International has confirmed it is canceling plans to build a consolidated interim storage facility for spent nuclear fuel in southeastern New Mexico. Named the HI-STORE CISF, the facility would have stored up to 10,000 canisters of commercial SNF on land owned by the Eddy-Lea Energy Alliance (ELEA) near the towns of Carlsbad and Hobbs.
2021 ANS Annual Meeting Plenary SPeaker
Jeff Guldner leads Pinnacle West Capital Corporation and its primary subsidiary, Arizona Public Service Company (APS). The companies are headquartered in Phoenix.
APS employs more than 6,000 people and serves nearly 1.3 million customers across Arizona. The company is among the nation’s top utilities for delivering clean and reliable energy to its customers and has announced an ambitious commitment to deliver 100% clean, carbon-free electricity to customers by 2050. APS operates the Palo Verde Generating Station, the nation’s largest energy producer—all of it carbon-free, and ranks among the top five investor-owned utilities for solar energy capacity.
Guldner was promoted to his current position in November 2019 from his dual roles as president of APS and executive vice president, public policy of Pinnacle West. Since joining APS in 2004, Guldner has held a number of leadership positions responsible for areas including legal, rates and regulation, government affairs and customer service.
Prior to APS, Guldner was a partner in the Phoenix office of Snell & Wilmer LLP, where he practiced public utility, telecommunications and energy law. Before practicing law, Guldner served as a surface warfare officer in the United States Navy and was an assistant professor of naval history at the University of Washington.
Guldner is dedicated to community involvement and actively serves on boards of directors, including the Partnership for Economic Innovation, the National Association of Manufacturers, Arizona Theatre Company and Greater Phoenix Economic Council, where he currently serves as Chair.
He earned a Bachelor of Arts degree from the University of Iowa and graduated magna cum laude from the Arizona State University College of Law. Guldner also completed the Reactor Technology Course at the Massachusetts Institute of Technology and the Advanced Management Program at Columbia Business School.
Last modified June 1, 2021, 8:23am EDT
