Xe-100
80 MWe high-temperature gas reactor designed for electricity and industrial-grade steam.
The annual-energy and household figures are scale illustrations, not project forecasts. Change those assumptions in the reactor output calculator.
Technology snapshot
| Reactor type | High-temperature gas-cooled reactor |
| Coolant / heat transfer | Helium |
| Fuel | TRISO-X |
| Refueling | Online pebble fuel handling |
| Region / market | United States |
What do these attributes mean for common use cases?
This is an attribute check, not a project recommendation. Site, grid, licensing, fuel, security and economics still need project-specific analysis.
| Common question | What this design data says |
|---|---|
| Grid electricity? | 80 MWe electrical nameplate in the current design snapshot. |
| Useful heat? | Yes — the design is presented here with heat-use potential. |
| Remote / isolated deployment? | Small-unit scale; site fit is project-specific. |
| Transportable system? | No — this profile treats it as a fixed-site design. |
| Current programme phase? | Regulatory / selection Licensing / project development |
Programme status
Licensing / project development. First-of-a-kind project development in the United States.
Dow / Seadrift project pathway.
Closest designs by electrical output
These are the three nearest entries in the Nuclear Planner dataset on a ratio-based MWe scale. They are not claimed to be technical substitutes.
Source and verification
Primary / authoritative source used for this snapshot →
Four-module configurations can reach 320 MWe.
Verified 2026-09-21. If the programme has moved since then, use the linked source as the current authority.