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Kairos Power · Oak Ridge, TN · Tennessee
35 MWt non-power demonstration of the fluoride-salt-cooled reactor; construction began 2024.
Power
—
Fission · Demonstration
Storage
—
energy capacity
Online
—
not announced
Capital committed
$303M
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 →Construction permit issued
Grant $303M
No milestones recorded yet.
Sources: ans.org
Not applicable: test or demonstration machine, sells no power
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 4/4 · WATCH Office relaunched as Energy Dominance FinancingLending shifts toward nuclear and utility expansions (AP1000 offers, Constellation uprates).
Critical inputs
Policy that applies