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Nuclear Energy Conference & Expo (NECX)
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.
Alan Staub, D. R. Harris, and Mark Goldsmith
Nuclear Science and Engineering | Volume 34 | Number 3 | December 1968 | Pages 263-274
Technical Paper | doi.org/10.13182/NSE68-A21091
Articles are hosted by Taylor and Francis Online.
A group of 11 aqueous critical experiments fueled by 233U and 235U and performed by Gwin and Magnuson have been analyzed to serve as integral tests of nuclear data important in reactor design. Measured eignvalues were corrected for various effects including the presence of the aluminum container, departures from sphericity, delayed-neutron importance, and room return. Eigenvalues were calculated in simplified P-3 approximation using 60 energy groups, and determinations were made of the eigenvalue uncertainties (±0.1%) associated with this treatment. Within the eigenvalue uncertainties (±0.25%) resulting from fuel inventories, it was concluded that fissile nuclide and H(n,γ) cross sections were adequate to match calculations and experiments but that there was evidence of erroneous nuclear data important in determining neutron leakage. In particular, a substantially harder 233U fission neutron spectrum seems to be indicated.
