Projects / prj-hermes-1
Kairos Hermes 1
Non-power fluoride-salt-cooled test reactor under NRC construction permit. Not an electrical generator.
- Stage
- Construction
- Design
- Hermes / KP-FHR (SMR)
- Technology
- Fluoride-salt-cooled high-temperature reactor (FHR) · molten_salt
- Operator(s)
- Kairos Power
- Vendor(s)
- Kairos Power
- Location
- Kairos Hermes site (East Tennessee Technology Park / Oak Ridge area) · United States · precision: approximate
Oak Ridge area industrial site; not vendor HQ. - Coordinates
- 35.9333, -84.3867
- Electrical capacity
- thermal only (no MWe) · scope: module
- Thermal capacity
- 35 MWth (nameplate_unspecified)
- Modules planned
- 1
- Inclusion basis
- smr_by_regulator_classification
- Confidence
- high
- Last verified
- 2026-10-01 (publication/verification date)
Milestones & dated events
- Construction permit: 2023-12 · actual · month
Regulatory actions
- Kairos Hermes 1 construction permit — construction_permit · approved · NRC
Sources
- NRC Kairos Hermes construction permit materials (regulator_primary, accessed 2026-10-01)