US Nuclear Regulatory Commission authorizes construction of TerraPower's first Natrium plant
TerraPower can start on-site construction under NRC authorization, while reactor operation remains subject to separate approval. This moves the Natrium design from licensing into physical build-out at the approved site.
Change
The US Nuclear Regulatory Commission issued a construction approval allowing TerraPower to begin building a 345-megawatt Natrium sodium-cooled reactor with an integrated salt-based storage system at Kemmerer, Wyoming that can temporarily output up to 500 megawatts.
Why it matters
The approval only permits construction; the plant must still obtain a separate NRC operating license before it may generate electricity. Because the design is first-of-a-kind in the United States and uses reactive liquid sodium and fast-neutron technology, licensing and construction will face heightened technical and regulatory scrutiny that raises the risk of schedule delays and extended oversight.
Implications
- — Data center operators and large electricity consumers should secure alternative firm capacity because the Kemmerer unit will not provide reliable generation before 2030.
- — Independent system operators and regional grid planners should exclude the Kemmerer plant from near-term capacity forecasts and reserve-planning assumptions.
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