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Deep Fission

Image of Deep Fission Logo
Who:   Deep Fission, Inc.
 
What:   Pre-Application activities associated with a future combined license application.
 
When:   May 2024 to Present
 
Website:   https://deepfission.com/

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Project Overview

The U.S. Nuclear Regulatory Commission (NRC) is currently engaged in pre-application activities with Deep Fission, Inc, regarding a combined license application for the Deep Fission Borehole Reactor 1 (DFBR-1). The Deep Fission Borehole Reactor 1 (DFBR-1), with a minimum diameter of approximately 30 inches, will be emplaced and operate at a depth of approximately 1 mile. This design takes advantage of the hydrostatic pressure, provided by depth, equaling approximately 160 atm. Each reactor produces 45 megawatts thermal (45 MWt) of steam which, when, upon reaching the surface, is used to generate up to 15 megawatts of electric power (15 MWe).

For more information, please see the Deep Fission pre-application documents (NRC Docket 99902126).

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Pre-Application Activities

Product Type Reference Status
NRC Regulatory Engagement Plan Regulatory Engagement Plan ML26111A380 No Review Requested
Conceptual Design Review of the Deep Borehole Pressurized Water Reactor (DB-PWR) White Paper ML24172A286 Review Complete
Conceptual Design Description White Paper ML26112A157 Review in Progress

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Contacts

Contacts for the Deep Fission Pre-Application Review
Lead Project Manager Ricky Vivanco
301-415-0021
Contact a Public Affairs Officer  

Page Last Reviewed/Updated Monday, June 22, 2026

Page Last Reviewed/Updated Monday, June 22, 2026