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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.
T. E. Murley, I. Kaplan
Nuclear Science and Engineering | Volume 31 | Number 2 | February 1968 | Pages 207-214
Technical Paper | doi.org/10.13182/NSE68-A18232
Articles are hosted by Taylor and Francis Online.
A method is presented for calculating the energy spectrum of fission neutrons slowing down in a homogeneous medium of arbitrary composition. The integral equation for ø(E) is solved by an iterative method, yielding a sum of partial spectra which are then summed to obtain a very simple expression for the slowing down spectrum. The effects of absorption and inelastic scattering are accounted for in an approximate manner. The fundamental-mode spectrum for a typical fast-reactor composition was calculated by this method, and the results agree favorably with the central spectrum from a 26-group diffusion calculation. A further application is given for using this method to generate weighting spectra for computing average multigroup cross sections.
