Humboldt Bay nuclear power plant
Retired United States
Gross capacity
65MW
Humboldt Bay nuclear power plant is a boiling water reactor unit at Humboldt Bay nuclear power plant in United States rated at 65 MW gross. It is retired. Commercial operation began 1 Aug 1963.
Specification
| Reactor type | Boiling water reactor (BWR) |
|---|---|
| Model | Natural cir. |
| Size class | Large |
| Coolant | Light water |
| Moderator | Light water |
| Gross capacity | 65MW |
| Net capacity (reference) | 63MW |
| Net capacity (design) | 65MW |
| Thermal output | 220MWt |
| Typical enrichment | 3–5% U-235 |
Ownership & location
| Site | Humboldt Bay nuclear power plant |
|---|---|
| Unit | not stated |
| Country | United States |
| Owner | Pacific Gas and Electric Co100% |
| Operator | Pacific Gas and Electric |
| Coordinates | 40.7407, -124.2091 |
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utilities do not publish fuel contracts.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 Nov 1960Construction start
- 16 Feb 1963First criticality
- 18 Apr 1963Grid connection
- 1 Aug 1963Commercial operation
- 2 Jul 1976Permanent shutdown
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 2024-05-28
- GEM.wiki entry (further reading) — CC BY-SA 4.0 — linked, not quoted