Hermes
Hermes, nuclear power plant under construction in United States, will add one small modular reactor with 50 MW net projected capacity.
Hermes 1 is under construction, with grid connection expected in 2027.
- Country
- United States
- Units
- 3
- Technology
- SMR
- Net capacity
- —
- First grid connection
- 2027
- Operator
- —
- Owner
- Kairos Power
- Status
- Under construction
See also: alerts for this plant · every plant in United States · every SMR reactor · how a SMR works
Operating capacity
0 MWe
net electrical
Units
3
0 operating
First start-up
2027
Units
| Unit | Type | Model | Status | MWe | MWt | Construction start | Grid connection | Closure | Load factor |
|---|---|---|---|---|---|---|---|---|---|
| Hermes 1 | Small modular reactor (SMR) | KP-FHR | Under construction | 50 | — | — | 2027 (planned) | — | — |
| Hermes 2a | Small modular reactor (SMR) | KP-FHR | Planned | 25 | — | — | 2030 (planned) | — | — |
| Hermes 2b | Small modular reactor (SMR) | KP-FHR | Planned | 25 | — | — | 2030 (planned) | — | — |
Data: Global Energy Monitor · updated on Aug 1, 2026
Hermes 1, a 50 MWe SMR (KP-FHR), is under construction, with grid connection expected in 2027.
Hermes 2a, a 25 MWe SMR (KP-FHR), is planned, with grid connection expected in 2030.
Hermes 2b, a 25 MWe SMR (KP-FHR), is planned, with grid connection expected in 2030.