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Built in Place for Commercial Operation
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, the company hopes to successfully demonstrate its Gravity Nuclear Reactor before developing a full-scale commercial project at the same location.
Participating in the DOE’s Reactor Pilot Program
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.
Powering Innovation from Proven Locations
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. For the DOE Reactor Pilot Program, the Kansas site will lead the way for Deep Fission.
Long-term Land Use
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 and environmental policies. The Department of Energy, the Kansas Department of Health and Environment, and other relevant agencies will oversee the construction of Deep Fission's first Gravity Nuclear Reactor, and the Nuclear Regulatory Commission will observe, support, and maintain awareness.
Cultural Rationale & Public Acceptance
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.
Contact UsCommercial Deployment Plan
Our timeline outlines a clear, results-driven path from pilot reactor development to full-scale commercial deployment.
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2025 to Present
DOE Reactor Pilot Agreement
Second Half 2025 event
Selected for Department of Energy Reactor Pilot Program, Authorized Under Executive Order 14301
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Gravity Reactor Announced
November 2025 event
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Site Selection: Parsons, KS
December 2025 event
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Groundbreaking
December 2025 event
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Before Present
Phase 1: Analysis
First Half 2026 event
Drilling, Engineering & Emplacement Analysis
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Data Acquisition Well Completion
May 2026 event
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LEU Fuel Delivered to Fabricator
Targeting Second Half 2026 event
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Proof of Concept Components Delivered to Site
Targeting Second Half 2026 event
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Phase 2: De-Risk
Targeting Second Half 2026 event
Commercial Borehole Proof of Concept and Advancing the Regulatory Path
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Proof of Concept Full Diameter Well Completion
Targeting Second Half 2026 event
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Pilot Program Well Drilling
Targeting Second Half 2026 event
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Pilot Program Reactor and Components Delivered to Site
Targeting First Half 2027 event
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Phase 3: Commercial
Targeting 2027-2028 event
DOE Pilot Construction, Authorization, and NRC Licensing Application
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Pilot Program Surface Plant, Steam Turbine, Instrumentation and Electrical Connection
Targeting First Half 2027 event
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System Turnover, Inspection, and Startup Testing
Targeting 2027 event
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Ongoing Non-recurring Design, Engineering, Project Management, NRC Licensing and Contingency
Targeting 2027-2028 event