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September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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From operator to entrepreneur: David Garcia applies outage management lessons
David Garcia
If ComEd’s Zion plant in northern Illinois hadn’t closed in 1998, David Garcia might still be there, where he got his start in nuclear power as an operator at age 24.
But in his ninth year working there, Zion closed, and Garcia moved on to a series of new roles—including at Wisconsin’s Point Beach plant, the corporate offices of Minnesota’s Xcel Energy, and on the supplier side at PaR Nuclear—into an on-the-job education that he augmented with degrees in business and divinity that he sought later in life.
Garcia started his own company—Waymaker Resource Group—in 2014. Recently, Waymaker has been supporting Holtec’s restart project at the Palisades plant with staffing and analysis. Palisades sits almost exactly due east of the fully decommissioned Zion site on the other side of Lake Michigan and is poised to operate again after what amounts to an extended outage of more than three years. Holtec also plans to build more reactors at the same site.
For Garcia, the takeaway is clear: “This industry is not going away. Nuclear power and the adjacent industries that support nuclear power—and clean energy, period—are going to be needed for decades upon decades.”
In July, Garcia talked with Nuclear News staff writer Susan Gallier about his career and what he has learned about running successful outages and other projects.
Yoshiaki Oka, Hiroaki Wakabayashi, Shigehiro An, Ikunori Suzuki
Nuclear Technology | Volume 31 | Number 3 | December 1976 | Pages 287-296
Technical Paper | Reactor | doi.org/10.13182/NT76-A31665
Articles are hosted by Taylor and Francis Online.
Neutron streaming through the holes penetrating the grid-plate shield of a prototype liquid-metal fast breeder reactor was experimentally examined. The mockups of the grid-plate shield were made of iron and aluminum. Experiments were conducted in the vertical column of YAYOI, the fast-neutron source reactor at the University of Tokyo. A 3He spectrometer was employed to measure the transmitted neutron spectrum, while rhodium and indium threshold foils were used to determine the integral flux above specific energies and their spatial distributions in the form of reaction rates. The streaming factor for usual small bent holes is 1.28 ± 0.04 for the integral neutron flux above 0.1 MeV and 1.30 ± 0.12 for the reaction rate of the indium foil. Use was made of the one- and two-dimensional neutron transport codes ANISN and TWOTRAN for evaluation by computation. The reaction rates calculated by an infinite slab model with the ANISN code agree well with the experiments when normalized at the source point where neutrons are incident on the grid-plate shield.
