Deep Fission has selected the Great Plains Industrial Park in Parsons, Kansas, to host its advanced underground nuclear reactor pilot project in partnership with the U.S. Department of Energy. Following the groundbreaking ceremony in December 2025, and the target completion by July 2026, the company hopes to successfully demonstrate its Gravity Nuclear Reactor before developing a full-scale commercial project at the same location.
Authorized under Executive Order 14301, the Reactor Pilot Program marks a historic shift in federal policy, enabling reactor testing and deployment on sites outside of national laboratories. This initiative is a cornerstone of the Department of Energy’s commitment to reform and streamline processes that will unlock innovation and speed up the development of next-generation nuclear technologies.
We have selected our first three planned power sites in Texas, Utah, and Kansas, each chosen for its strong geology, stable infrastructure, and community support. These regions offer ideal conditions for our underground reactors, combining secure siting with close proximity to high-demand energy industries.
Safety is our top priority. Deep Fission’s reactor is placed deep underground, where the surrounding geology provides natural containment and protection. This design aims to reduce risk and minimize any impact on the surface. In addition, the project will follow strict safety standards, environmental policies, and oversight from the Department of Energy, the Kansas Department of Health and Environment, and other relevant agencies.
We are committed to clear, accessible communication about how the technology works and how we keep the community safe. Deep Fission is committed to keeping the community informed as the work progresses, and we’ll provide clear pathways for people to stay updated and engage as they wish.
Our timeline outlines a clear, results-driven path from pilot reactor development to full-scale data center deployment.
Establishes a Department of Energy agreement to construct a mile-deep test reactor, targeting criticality to accelerate advanced nuclear commercialization.
Announces the Gravity Nuclear Reactor™, a deep borehole system designed to leverage natural earth pressure.
Selects the Great Plains Industrial Park in Kansas for first-of-a-kind underground nuclear reactor.
Groundbreaking of a mile-deep borehole nuclear reactor in Kansas designed to provide safe, sustainable energy.
We will construct and operate our first pilot reactor, designed to produce 15MWe of clean energy.
Data acquisition well drilling commences at Department of Energy Pilot Site in Parsons, KS. Coring, logging, testing and analysis of site geology at depth.
Wellbore construction and thermal testing proof of concept.
First-of-a-kind mile-deep, 15 MWe Deep Fission Gravity Nuclear Reactor seeks NRC Commercial License.