Our Solution


One Deep Fission reactor only needs a 30-inch borehole for in-depth placement, producing 15 MW of energy one mile underground. Ten Deep Fission reactors need only a ¼ of a square acre to yield 150 MWe, while less than three square acres can house 100 Deep Fission reactors to generate 1.5 GWe. Our reactors are fully modular, allowing customers to order multiple reactors in discreet bespoke configurations to meet the diverse needs of its end-users in large cities, or military bases or to power hyper-scale data centers and utilities.

Available in 15 MWe scalable arrays, Deep Fission leverages decades of unique experience—and standard components—to generate safe, abundant, and scalable energy.

Our use of the standard PWR design is expected to facilitate a faster path to licensing, since the Nuclear Regulatory Commission (NRC) has time-tested regulations, standards and audit processes to ensure the public’s safety. Deep Fission is actively engaged with the NRC, which you can learn more about on our regulatory page.

The Deep Fission reactor is based on the time-tested traditional technology of the pressurized water reactor (PWR), the most common type of nuclear reactor around the world. even the same fuel assemblies (which hold the fuel in place), and the same methods to control the power (control rods and boron in the coolant fluid). 

The Deep Fission SMR design operates at the same pressure (160 atmospheres) as does a standard PWR, and at the same core temperatures (about 315°C, equal to 600°F). As with a standard PWR, the heat is transferred to a steam generator at depth to boil water, and the non-radioactive steam rises rapidly to the surface where a standard steam turbine converts the energy to its electricity. 

Our SMR has no moving parts at depth, other than the control rods and the fluid flow of the water coolant.  This design minimizes the need for maintenance, although cables attached to the reactor allow it to be raised to the surface (it takes only an hour or two) if inspection of the reactor is deemed necessary. 

Our SMR does not rely on foreign fuel sources that can become unavailable due to the geopolitical environment.

Deep Fission is actively engaged with the NRC, which you can learn more about on our regulatory page. We are confirming our first sites and customers now, and expect to have our first commercial reactors in operation within 3 years of final site confirmation.

Learn more about benefits to customers here.

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