NuScale vs Oklo: Which Nuclear Stock Powers AI Future?

The International Energy Agency projects AI will double electricity consumption in coming years, creating massive demand for reliable power sources. Small modular reactors (SMRs) have emerged as a promising solution, offering nuclear power on a smaller scale ideal for powering AI data centers. Two companies stand out in this space: Oklo with its innovative liquid-metal-cooled Aurora reactor, and NuScale with its more conventional but commercially advanced water-cooled design. While both target the same AI energy opportunity, they approach it with dramatically different technologies and business maturity levels.

Oklo's Aurora reactor represents cutting-edge nuclear technology, using liquid sodium metal as coolant instead of water. This approach allows higher temperature operation, lower pressure requirements, and produces 90% less nuclear waste than traditional reactors. The company has secured government interest, including a contract to deploy at Alaska's Eielson Air Force Base, showcasing the technology's potential appeal for specialized applications.

NuScale takes a more conventional path with miniaturized water-cooled reactors that can be factory-built and shipped to site. What NuScale lacks in technological innovation compared to Oklo, it makes up for in commercial progress. The company has secured the largest SMR deployment program in U.S. history with the Tennessee Valley Authority for 6 gigawatts of capacity across seven states.

The fundamental difference lies in revenue generation: NuScale reported $8.2 million in Q3 2025 revenue from projects including work with Fluor in Romania, while Oklo generates zero revenue and won't see commercial operation until 2027-2028 at the earliest.

The AI energy crisis represents a multi-trillion dollar opportunity, and companies that can provide reliable, scalable power solutions stand to benefit enormously. Nuclear power offers the density and reliability that renewable sources often lack, making SMRs particularly attractive for power-hungry AI data centers that require consistent electricity regardless of weather conditions.

For risk-tolerant investors, this represents a potential early-entry opportunity in what could become a massive industry. However, the nuclear sector carries significant regulatory, technological, and execution risks that make stock selection crucial. Choosing between innovative technology and commercial maturity becomes the central investment decision.