Hermes
**Vendor/Designer:** [[vendors/kairos-power]]
Key Stats
100/100
Hermes
Status: UNDER_CONSTRUCTION Category: SMR Country: USA USA Vendor/Designer: kairos-power Type: Fluoride salt-cooled reactor [Fluoride salt-cooled reactor](/library/wiki/technologies/Fluoride salt-cooled reactor) Capacity: 35 MWe
Overview
Hermes is a fluoride salt-cooled reactor under construction in the USA, developed by Kairos Power, with a net capacity of 35 MWe. This SMR demo unit is significant for testing molten salt technology, which could offer enhanced safety and efficiency for future civilian nuclear power. Construction marks an early milestone, though it has no operational history yet.
Key Facts
Notes
Demo unit
Source: IAEA PRIS / reactors_canonical · Enriched by Grok Last updated: 2026-05-10
Sources
- Kairos Power Official Website — Official site of the developer with details on the Hermes reactor project.
- World Nuclear Association - USA Profile — Overview of nuclear power in the USA, including emerging projects like Hermes.
- NRC Power Reactor List — General resource for US reactor information; specific docket for Hermes may be available as project progresses.
- World Nuclear News - Kairos Power Hermes Announcement [UNVERIFIED] — News article on Hermes reactor construction plans in Tennessee.
Sources (1)
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