Advanced Reactor Fleet Deployment

Our team, combined with others from Zachry and Day & Zimmermann, is collaborating on the design and deployment of the Xe-100 advanced reactor fleet.

The team is focused on an optimized construction schedule, standardized advanced work packages, and the latest construction techniques and digital technology.

X-energy’s Xe-100 is a next generation high-temperature gas reactor built on decades of research, development, and operating experience. Each reactor is engineered to operate as a single 80-megawatt (MW) electric unit and is optimized as a four-unit plant delivering 320-MW electric. The reactor can provide clean, reliable and safe baseload power to an electricity system or support industrial applications with 200-MW thermal output per unit. In 2020 X-energy was selected by the U.S. Department of Energy’s Advanced Reactor Demonstration Program to deliver a four-unit Xe-100 plant in Washington state, which will make it the first operational grid-scale advanced reactor plant in North America.

Under the X-energy Project Delivery Model (X-PDM), constructors and suppliers work alongside X-energy in all phases of design, equipment supply, fabrication and construction to develop detailed project costs, project schedules, advanced work plans and four-dimensional modeling prior to the start of safety-related construction. This collaborative approach aims to greatly reduce risk and uncertainty as early as possible.




United States



SMR, Advanced Reactors & Nuclear Plant Development