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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. Lefvert
Nuclear Science and Engineering | Volume 42 | Number 3 | December 1970 | Pages 267-271
Technical Paper | doi.org/10.13182/NSE70-A21216
Articles are hosted by Taylor and Francis Online.
A multigroup, collision-probability, order-of-scattering approach is made to the slowing down solution of the neutron transport equation in a heterogeneous, non-multiplying medium with sources. Introducing first-collision probabilities in the Liouville-Neumann series solution of the neutron flux, the series may be summed and a transport matrix defined. If a flat source distribution in the region is assumed, this matrix is typical of the medium and of the geometrical configuration only and links, in an explicit way, sources and resultant fluxes. In a multiplying system without external sources it is also possible to use the above transport model when determining the effective neutron multiplication factor by the fission probability matrix method.