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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.
Jacob B. Romero
Nuclear Science and Engineering | Volume 42 | Number 1 | October 1970 | Pages 49-57
Technical Paper | doi.org/10.13182/NSE70-A19326
Articles are hosted by Taylor and Francis Online.
Radioactive particles escaping a surface carry a portion of the disintegration energy. The fluxes of particles, power, and energy are referred to as residual fluxes. In this paper a method is formulated for predicting residual fluxes emanating from a composite surface consisting of an active substrate layer protected by a clad layer. Application of this method requires only knowledge of the particle ranges in the layer materials. Using existing range-energy equations, generalized plots are presented for estimating residual quantities for heavy particles. Calculations show that fractional residual power and particle fluxes vary from 0.5 for thin (monoatomic) layers to zero for very thick layer or heavily cladded systems. Typical values of the residual power are 0.1 W/cm2 for alpha particles and 10 W/cm2 for fissioning surfaces.
