Nine Mile Point nuclear power plant 1
Gross capacity
642MW
Nine Mile Point nuclear power plant 1 is a boiling water reactor unit at Nine Mile Point nuclear power plant in United States rated at 642 MW gross. It is operating. Commercial operation began 1 Dec 1969.
Specification
| Reactor type | Boiling water reactor (BWR) |
|---|---|
| Model | BWR-2 (Mark 1) |
| Size class | Large |
| Coolant | Light water |
| Moderator | Light water |
| Gross capacity | 642MW |
| Net capacity (reference) | 613MW |
| Net capacity (design) | 620MW |
| Thermal output | 1,850MWt |
| Typical enrichment | 3–5% U-235 |
Ownership & location
| Site | Nine Mile Point nuclear power plant |
|---|---|
| Unit | 1 |
| Country | United States |
| Owner | Electricité De France (EDF)100% Exelon Nuclear |
| Operator | Exelon Generation |
| Coordinates | 43.5205, -76.4068 |
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utilities do not publish fuel contracts.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
- 12 Apr 1965Construction start
- 5 Sep 1969First criticality
- 9 Nov 1969Grid connection
- 1 Dec 1969Commercial operation
Other units at Nine Mile Point nuclear power plant
| Unit | Status | Gross MW |
|---|---|---|
| Nine Mile Point nuclear power plant 2 | 1,320 | |
| Nine Mile Point nuclear power plant 3 | Cancelled | 1,600 |
| Nine Mile Point nuclear power plant SMR | Announced | 300 |
Other BWR-2 (Mark 1) units
2 units worldwide share this model designation.
| Unit | Country | Status | Gross MW |
|---|---|---|---|
| Oyster Creek nuclear power plant 1 | United States | Retired | 652 |
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