TerraPower Raises $650M To Boost Nuclear Innovation

In a powerful endorsement of the future of clean nuclear energy, TerraPower has announced the successful close of a $650 million funding round, bringing together some of the most influential names in technology and industry. The investment, led by both long-standing and new stakeholders—including NVentures (the venture capital arm of NVIDIA), TerraPower founder Bill Gates, and HD Hyundai—marks a significant step toward deploying the company’s advanced nuclear reactor technology known as Natrium®.

Founded with the mission of transforming nuclear science into a force for global good, TerraPower is now poised to become a cornerstone in the transition to carbon-free energy, particularly as demand for reliable, low-emission power sources continues to surge. The Natrium reactor represents the company’s flagship solution: a next-generation nuclear system that combines advanced safety features with integrated gigawatt-scale energy storage capabilities. This design aims to deliver clean, dispatchable power, helping grid operators balance renewable energy fluctuations while reducing reliance on fossil fuels.

With non-nuclear construction of its first Natrium plant already underway and regulatory approvals expected by 2025, the newly acquired funds will significantly accelerate the pace at which TerraPower can bring this innovation to market. The company’s plans extend well beyond the U.S., with a strong focus on international deployment to meet global clean energy needs.

The participation of NVentures is particularly noteworthy, signaling a growing convergence between artificial intelligence and energy infrastructure. As AI models continue to grow in complexity and computing demand, the need for reliable and sustainable energy sources has become a critical challenge for data center operators and technology companies alike. NVIDIA, a global leader in AI and high-performance computing, recognizes this urgency. Its investment in TerraPower reflects a strategic interest in ensuring that the clean energy demands of the AI-powered future can be met.

“As AI continues to transform industries, nuclear energy is going to become a more vital energy source to help power these capabilities,” said Mohamed “Sid” Siddeek, Corporate Vice President and Head of NVentures. “TerraPower’s nuclear reactor technologies offer innovative, carbon-free solutions to meet global energy needs while minimizing environmental impact.”

This alignment of AI and clean energy goals also underscores a broader industry trend: technology firms are increasingly looking beyond traditional power sources to ensure both the sustainability and scalability of their operations. As TerraPower’s Natrium reactor design offers not only zero-carbon energy but also flexible output through its energy storage system, it is uniquely positioned to address these evolving demands.

Chris Levesque, President and CEO of TerraPower, welcomed the backing from NVIDIA and others as validation of the company’s mission and technological vision. “TerraPower was founded on the idea that innovation in nuclear science could make positive, global impacts,” Levesque said. “This round further establishes that our technologies are the solutions that industry is looking for. We are proud to have NVIDIA join our visionary group of investors.”

The significance of this funding goes beyond TerraPower itself. It highlights the growing interest in advanced nuclear solutions as viable tools in the battle against climate change, energy insecurity, and the intermittency challenges of renewable energy sources like solar and wind. TerraPower’s Natrium reactor was developed in collaboration with GE Hitachi Nuclear Energy and was selected by the U.S. Department of Energy’s Advanced Reactor Demonstration Program. With its compact design, ability to ramp power output up or down as needed, and potential for modular deployment, the Natrium system could become a key component of tomorrow’s clean energy grid.

The latest investment in TerraPower follows a broader momentum in the energy sector where major corporations, governments, and tech giants are looking to diversify their energy portfolios. In a related move, Amazon recently secured 1,920 megawatts of nuclear power capacity from Talen Energy, further emphasizing the tech industry’s growing interest in nuclear energy as a foundation for digital expansion.

With TerraPower’s Natrium plant slated to become the first commercial advanced nuclear power facility in the United States, the company is laying the groundwork for a global rollout that could redefine how countries produce and consume electricity. This funding round not only brings TerraPower closer to commercializing its reactors but also symbolizes a vote of confidence in nuclear innovation as an essential pathway toward a sustainable, AI-ready future.

As the climate crisis intensifies and the energy demands of new technologies accelerate, the intersection of advanced nuclear power and digital infrastructure is no longer speculative—it is becoming reality. TerraPower’s breakthrough and the high-profile support it has garnered may very well mark a turning point in the global clean energy transition.