Columbia nuclear power plant EPU
Gross capacity
162MW
Columbia nuclear power plant EPU is a boiling water reactor unit at Columbia nuclear power plant in United States rated at 162 MW gross. It is pre-construction. Commercial operation began 1 Jan 2031.
Specification
| Reactor type | Boiling water reactor (BWR) |
|---|---|
| Model | BWR-5BWR-5 (Mark 2) in the source |
| Size | Small300 MWe or less |
| Coolant | Light water |
| Moderator | Light water |
| Gross capacity | 162MW |
| Net capacity (reference) | not disclosed |
| Net capacity (design) | not disclosed |
| Thermal output | not disclosed |
| NSSS vendor | GE Vernova Hitachi Nuclear Energyall vendors |
| Typical enrichment | 3–5% U-235 |
Ownership & location
| Site | Columbia nuclear power plant |
|---|---|
| Unit | EPU |
| Country | United States |
| Owner | Energy Northwest100% |
| Operator | Energy Northwest |
| Coordinates | 46.4711, -119.3339 |
Fuel chain for this unit
Fuel form
Uranium dioxide pellets in zirconium-alloy cladding
Enrichment
3–5% U-235
Who makes this assembly
- Framatome BWR fuel assemblies
- Global Nuclear Fuel BWR fuel assemblies
- Westinghouse Electric Company BWR fuel assemblies
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.
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utilities do not publish fuel contracts.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 2031Commercial operation
Other units at Columbia nuclear power plant
| Unit | Status | Gross MW |
|---|---|---|
| Columbia nuclear power plant 1 | 1,190 |
Other BWR-5 (Mark 2) units
5 units worldwide share this model designation.
| Unit | Country | Status | Gross MW |
|---|---|---|---|
| Columbia nuclear power plant 1 | United States | 1,190 | |
| LaSalle nuclear power plant 1 | United States | 1,207 | |
| LaSalle nuclear power plant 2 | United States | 1,207 | |
| Nine Mile Point nuclear power plant 2 | United States | 1,320 |
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