Cascade SMR nuclear power plant 4
Gross capacity
80MW
Cascade SMR nuclear power plant 4 is a high-temperature gas reactor unit at Cascade SMR nuclear power plant in United States rated at 80 MW gross. It is pre-construction. Commercial operation began 1 Jan 2032.
Specification
| Reactor type | High-temperature gas reactor (HTGR) |
|---|---|
| Model | Xe-100 |
| Size | Small300 MWe or less |
| Coolant | Helium |
| Moderator | Graphite |
| Gross capacity | 80MW |
| Net capacity (reference) | not disclosed |
| Net capacity (design) | not disclosed |
| Thermal output | 200MWt |
| NSSS vendor | X-energyall vendors |
| Typical enrichment | 8–20% U-235, frequently HALEU |
Ownership & location
| Site | Cascade SMR nuclear power plant |
|---|---|
| Unit | 4 |
| Country | United States |
| Coordinates | 46.4569, -119.3287approximate |
Fuel chain for this unit
Fuel form
TRISO-coated particle fuel in pebbles or compacts
Enrichment
8–20% U-235, frequently HALEU HALEU dependency
Who makes this assembly
- BWX Technologies TRISO particle fuel
- X-energy TRISO particle fuel, HALEU enrichment
Upstream
Enriched fuel means this unit sits downstream of five conversion plants and four enrichment operators holding 88% of world capacity between the top three.
This design needs HALEU, enrichment above 5%. Western production is currently measured in hundreds of kilograms a year.
Fabricator capability is recorded against reactor type and model line, not against named units,
utilities do not publish fuel contracts. See the fuel chain.
Timeline
- 1 Jan 2032Commercial operation
Other units at Cascade SMR nuclear power plant
| Unit | Status | Gross MW |
|---|---|---|
| Cascade SMR nuclear power plant 1 | Pre-construction | 80 |
| Cascade SMR nuclear power plant 10 | Announced | 80 |
| Cascade SMR nuclear power plant 11 | Announced | 80 |
| Cascade SMR nuclear power plant 12 | Announced | 80 |
| Cascade SMR nuclear power plant 2 | Pre-construction | 80 |
| Cascade SMR nuclear power plant 3 | Pre-construction | 80 |
| Cascade SMR nuclear power plant 5 | Announced | 80 |
| Cascade SMR nuclear power plant 6 | Announced | 80 |
| Cascade SMR nuclear power plant 7 | Announced | 80 |
| Cascade SMR nuclear power plant 8 | Announced | 80 |
| Cascade SMR nuclear power plant 9 | Announced | 80 |
Other Xe-100 units
16 units worldwide share this model designation.
| Unit | Country | Status | Gross MW |
|---|---|---|---|
| Cascade SMR nuclear power plant 1 | United States | Pre-construction | 80 |
| Cascade SMR nuclear power plant 10 | United States | Announced | 80 |
| Cascade SMR nuclear power plant 11 | United States | Announced | 80 |
| Cascade SMR nuclear power plant 12 | United States | Announced | 80 |
| Cascade SMR nuclear power plant 2 | United States | Pre-construction | 80 |
| Cascade SMR nuclear power plant 3 | United States | Pre-construction | 80 |
| Cascade SMR nuclear power plant 5 | United States | Announced | 80 |
| Cascade SMR nuclear power plant 6 | United States | Announced | 80 |
| Cascade SMR nuclear power plant 7 | United States | Announced | 80 |
| Cascade SMR nuclear power plant 8 | United States | Announced | 80 |
| Cascade SMR nuclear power plant 9 | United States | Announced | 80 |
| Long Mott nuclear power plant 1 | United States | Pre-construction | 80 |
Sources
- Global Nuclear Power Tracker, Global Energy Monitor, August 2026 release , CC BY 4.0 · retrieved 2026-09-06 · this unit last researched by GEM on 2026-06-29
- GEM.wiki entry (further reading) , CC BY-SA 4.0, linked, not quoted
How these sources are used, including the corrections applied on top of them and what is deliberately left blank · download the underlying data