Deep Fission

Deep Fission, Inc. is a pre-revenue nuclear technology company focused on the development and commercialization of underground small modular reactors (SMRs). The company's core product, the Gravity Nuclear Reactor, adapts established pressurized water reactor (PWR) technology and standard low-enriched uranium (LEU) fuel for deployment in 30-inch diameter boreholes drilled one mile below the Earth's surface. This novel approach leverages the surrounding bedrock for natural shielding and containment, while utilizing the hydrostatic pressure of the deep water column to support reactor cooling and operating pressure. By eliminating the need for massive surface containment structures, Deep Fission expects to significantly reduce construction timelines, capital costs, and surface footprints compared to conventional nuclear plants. The company's business model encompasses upfront revenue from reactor delivery, engineering, procurement, and construction (EPC) support, as well as recurring revenue from technology licensing, operations and maintenance (O&M) services, and long-term electricity sales through power purchase agreements. Deep Fission is currently advancing its first pilot project in Parsons, Kansas, having been selected for the U.S. Department of Energy's Reactor Pilot Program, with a target of achieving criticality by 2026. The company primarily targets hyperscale data centers, heavy industry, and utilities seeking firm, dispatchable clean energy.