"" TerraPower's Natrium reactor design offers a unique solution for the unpredictable power appetites of AI workloads. The built-in molten salt battery allows the reactor to surge from 345 MW to 500 MW on demand, making it an attractive option for data centers.
In January 2026, Meta signed an agreement with TerraPower for up to eight Natrium units, with projected baseload capacity of roughly 2.8 GW and storage capabilities of approximately 4 GW. This deal represents the kind of multi-year energy commitment that hyperscalers are increasingly willing to make.
Construction of Kemmerer Unit 1 in Wyoming is already underway, marking the first utility-scale advanced nuclear plant to break ground in the US in decades. TerraPower is also exploring expansion opportunities in the UK and South Korea, both of which have signaled renewed interest in nuclear as a path to decarbonization and energy security.
The Natrium reactor's molten salt storage system sidesteps the dilemma of managing power demand, allowing it to charge the salt during periods of low demand and generate additional steam to drive turbines when demand spikes. This capability is particularly appealing for AI data centers, which require predictable and high levels of power to operate.
TerraPower's partnership with Meta is part of a broader nuclear initiative that targets up to 6.6 GW across several projects, all aimed at feeding the computational demands of its AI infrastructure. As the demand for energy continues to grow, TerraPower's Natrium reactor is poised to play a key role in powering the next generation of AI data centers.
The Benefits of Molten Salt Energy Storage
The molten salt energy storage system in TerraPower's Natrium reactor offers several benefits, including the ability to charge the salt during periods of low demand and generate additional steam to drive turbines when demand spikes. This capability is particularly appealing for AI data centers, which require predictable and high levels of power to operate.
A New Era for Nuclear Energy
TerraPower's Natrium reactor represents a new era for nuclear energy, with its advanced design and molten salt storage system offering a unique solution for the unpredictable power appetites of AI workloads. As the demand for energy continues to grow, TerraPower's Natrium reactor is poised to play a key role in powering the next generation of AI data centers.
Expansion Opportunities
TerraPower is exploring expansion opportunities in the UK and South Korea, both of which have signaled renewed interest in nuclear as a path to decarbonization and energy security. With its advanced reactor design and molten salt storage system, TerraPower is well-positioned to capitalize on this trend and become a major player in the global nuclear energy market.
Conclusion
In conclusion, TerraPower's Natrium reactor offers a unique solution for the unpredictable power appetites of AI workloads. With its built-in molten salt battery, capable of surging from 345 MW to 500 MW on demand, the Natrium reactor is poised to play a key role in powering the next generation of AI data centers. As the demand for energy continues to grow, TerraPower's Natrium reactor is well-positioned to capitalize on this trend and become a major player in the global nuclear energy market.
