Millstone nuclear power plant 3
Gross capacity
1,280MW
Millstone nuclear power plant 3 is a pressurised water reactor unit at Millstone nuclear power plant in United States rated at 1,280 MW gross. It is operating. Commercial operation began 23 Apr 1986.
Specification
| Reactor type | Pressurised water reactor (PWR) |
|---|---|
| Model | WH 4LP (DRYSUB) |
| Size class | Large |
| Coolant | Light water |
| Moderator | Light water |
| Gross capacity | 1,280MW |
| Net capacity (reference) | 1,210MW |
| Net capacity (design) | 1,159MW |
| Thermal output | 3,650MWt |
| Typical enrichment | 3–5% U-235 |
Ownership & location
| Site | Millstone nuclear power plant |
|---|---|
| Unit | 3 |
| Country | United States |
| Owner | Dominion Resources Inc100% |
| Operator | Dominion Energy |
| Coordinates | 41.3107, -72.1677 |
Fuel chain for this unit
Fuel form
Uranium dioxide pellets in zirconium-alloy cladding
Enrichment
3–5% U-235
Who makes this assembly
- China National Nuclear Corporation PWR fuel assemblies
- ENUSA Industrias Avanzadas PWR and BWR fuel assemblies
- Framatome PWR fuel assemblies
- KEPCO Nuclear Fuel PWR fuel assemblies
- Mitsubishi Heavy Industries PWR fuel assemblies
- Westinghouse Electric Company PWR 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utilities do not publish fuel contracts.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
- 9 Aug 1974Construction start
- 23 Jan 1986First criticality
- 12 Feb 1986Grid connection
- 23 Apr 1986Commercial operation
Other units at Millstone nuclear power plant
| Unit | Status | Gross MW |
|---|---|---|
| Millstone nuclear power plant 1 | Retired | 684 |
| Millstone nuclear power plant 2 | 918 |
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