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(Nasdaq: FISN) is targeting commercial deployment as early as 2027 following a successful 100-foot borehole demonstration in Fort Myers, Florida.
The company announced a collaboration with Youngquist Brothers, LLC on September 21, 2026, to evaluate drilling technologies for its underground reactor model.
The partnership focuses on constructing large-diameter boreholes to house the Gravity Nuclear Reactor, a small modular pressurized water reactor designed to sit approximately one mile underground.
| Metric | Value | Context | |---|---|---| | Target Deployment | As early as 2027 | Projected timeline | | Demo Depth | 100 feet | Scale test | | Borehole Diameter | 34 inches | Test site | | Canister Size | 30 inches | Prototype | The demonstration completed on September 3, 2026, involved lowering and retrieving a 30-inch full-size prototype reactor canister into a 34-inch borehole.
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