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Oklo · Idaho National Laboratory, ID · IdahoDEVELOPER HEALTHWATCH
First Aurora sodium-cooled fast-reactor powerhouse, built under DOE's Reactor Pilot Program authorization. Ground broken Sep 22, 2025.
Power
75 MW
Fission · First commercial
Storage
—
energy capacity
Online
2028
approximate target
Capital committed
—
closed or awarded
Capital pending
—
conditional or under review
How it works
The core sits in a pool of liquid metal or molten salt that carries heat away at normal pressure. Some designs store that heat in molten-salt tanks so the plant can boost output when the grid needs it.
OPEN IN 3D →No application yetDOCKET 52-049
applied Mar 11, 2020 · issued Jan 6, 2022
Aurora-INL is proceeding under DOE authorization through the Reactor Pilot Program, with the Nuclear Safety Design Agreement and Preliminary Documented Safety Analysis approved, while the Documented Safety Analysis, readiness reviews and startup authorization remain pending. The NRC's combined license application (docket 52-049) was denied without prejudice on January 6, 2022, and a June 2026 NRC letter states Oklo has no current NRC licensing application for Aurora-INL.
NEXT: DOE approval of the Documented Safety Analysis, then completion of readiness reviews and startup authorization (no date given)
No project-level financing disclosed yet.
Sources: neimagazine.com
No offtaker announced.
STEP 4/6 · AT RISK HALEU is the bottleneckMost advanced designs need HALEU (5–20% enriched), with no commercial US supply at scale yet.
STEP 5/6 · AT RISK Advanced reactor timelinesFuel availability becomes a gating item for first units.
STEP 4/4 · WATCH Office relaunched as Energy Dominance FinancingLending shifts toward nuclear and utility expansions (AP1000 offers, Constellation uprates).
Critical inputs
Policy that applies