Living definition
What is Kairos Power Hermes 2?
Fusion & Advanced Nuclear Energy, Climate, Space & Materials
- As of
- 2026-08-20
- Revision
- 2026-08-17.1
- Method
- v1.3.0
Definition
The term, in context
AI-assisted draft · approved dataset
Hermes 2 is a nuclear reactor demonstration unit developed by Kairos Power that uses molten fluoride salt as a coolant and TRISO fuel pebbles as the fuel form, rather than the pressurized water used in conventional reactors. The fluoride-salt design operates at low pressure and high temperature, and Hermes 2 is configured to generate electricity by coupling the reactor's heat output to a power generation system.
Live readiness status
Status as of the current dateline
AI-assisted assembly · derived results
As of 2026-08-20, verified readiness is 38 (claimed 45, reported 43, gap 7) — Strong evidence strength; current signals suggest Track; not yet.
The readiness fact belongs to the canonical Readiness Verdict for Kairos Power Hermes 2.
Dataset approval
Human editorial release
pragma.vision editorial — standing authorization (operator dev@soft.house, 2026-07-17)
- Dataset
- 2026-08-17.1
- Hash
- sha256:0c37108a182f510fc8cf4d1dfc3a30339f2b59e62654201edea2f530a268707e
- Approved
- 2026-08-17