Deep Fission is a nuclear energy technology company focused on developing a small modular reactor called the Gravity Reactor that combines established pressurized water reactor technology with novel emplacement in deep boreholes approximately one mile below the Earth's surface. The reactor module is designed to be installed within a vertical borehole lined with steel casing and cement, surrounded by a column of water that provides hydrostatic pressure to support reactor…
Deep Fission is a nuclear energy technology company focused on developing a small modular reactor called the Gravity Reactor that combines established pressurized water reactor technology with novel emplacement in deep boreholes approximately one mile below the Earth's surface. The reactor module is designed to be installed within a vertical borehole lined with steel casing and cement, surrounded by a column of water that provides hydrostatic pressure to support reactor operation and cooling. This subsurface approach aims to reduce reliance on large surface containment structures, lower capital and operating costs, improve security, enhance safety, and accelerate deployment timelines compared to conventional nuclear power plants. Each Gravity Reactor unit targets up to 15 megawatts of electric power output and can be deployed individually or clustered in groups of boreholes at a single site to scale capacity to hundreds or even thousands of megawatts. The company is advancing through a phased deployment plan that includes engineering validation, demonstration of a commercial scale borehole, DOE authorization, and eventual pursuit of NRC licensing for commercial operation, with the goal of reaching commercialization within the next three years.
Deep Fission intends to generate revenue through three primary streams. First, it plans to participate in project-level equity ownership of Gravity Reactor facilities, thereby receiving indirect cash flows from electricity sales under long-term power purchase agreements or similar offtake arrangements with customers. Second, the company expects to earn one-time upfront revenue from services related to reactor delivery, integration, engineering support, project development, and construction coordination for each installation. Third, it aims to secure recurring revenue from technology licensing of its proprietary reactor design, subsurface emplacement methods, and related systems, as well as from ongoing operations and maintenance support for deployed reactor units. Although the company remains in the development stage and has not yet generated revenue, its business model is structured to capture value across the project lifecycle from early development through long-term operation.
Deep Fission competes in the emerging small modular reactor market alongside advanced reactor developers such as TerraPower, X-energy, Kairos Power, Oklo, NuScale Power, and Last Energy, as well as established nuclear vendors including Westinghouse Electric Company, GE-Hitachi Nuclear Energy, and Holtec International. The company differentiates itself through its deep borehole emplacement concept, which leverages natural geological formations for structural confinement and shielding, uses hydrostatic pressure from a water column to support reactor pressure and cooling, and reduces the need for expansive surface safety infrastructure. This approach is intended to lower capital expenditures, shorten construction schedules, enhance security against surface-based hazards, and provide a modular scaling path that aligns with growing electricity demand from data centers and industrial users. Additionally, Deep Fission’s intellectual property portfolio, which includes an issued U. S. patent and numerous pending applications covering reactor configuration, drilling techniques, thermal-hydraulic performance, and monitoring systems, creates barriers to entry and supports its competitive position in the sector.
The company’s target customers include hyperscale data centers and other digital infrastructure facilities that require large volumes of reliable baseload power to support continuous cloud computing and artificial intelligence workloads. It also serves industrial and energy-intensive plants such as advanced manufacturing, mining, chemical production, and large-scale processing facilities that need dependable electricity to maintain uninterrupted operations. Electric utilities and grid-scale generation developers represent another customer group seeking additional firm capacity to meet rising demand, replace retiring assets, or integrate intermittent renewable resources. Finally, government and defense installations are considered potential users due to their need for resilient, secure power supplies capable of operating independently of external grid disruptions. While the company’s initial focus is on the United States, it is evaluating international opportunities in jurisdictions with civil nuclear cooperation agreements with the U. S. and supportive regulatory environments for advanced nuclear deployment.
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CIK: 0001918102