Duane Arnold nuclear power plant 1 Repower
Gross capacity
624MW
Duane Arnold nuclear power plant 1 Repower is a boiling water reactor unit at Duane Arnold nuclear power plant in United States rated at 624 MW gross. It is pre-construction. Commercial operation began 1 Jan 2029.
Specification
| Reactor type | Boiling water reactor (BWR) |
|---|---|
| Model | BWR-4 (Mark 1) |
| Size class | Large |
| Coolant | Light water |
| Moderator | Light water |
| Gross capacity | 624MW |
| Net capacity (reference) | 601MW |
| Net capacity (design) | 601MW |
| Thermal output | 1,912MWt |
| Typical enrichment | 3–5% U-235 |
Ownership & location
| Site | Duane Arnold nuclear power plant |
|---|---|
| Unit | 1 Repower |
| Country | United States |
| Owner | Nextera Energy Resources LLC100% |
| Operator | Nextera Energy Resources |
| Coordinates | 42.1011, -91.7781 |
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utilities do not publish fuel contracts.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 2029Commercial operation
Other units at Duane Arnold nuclear power plant
| Unit | Status | Gross MW |
|---|---|---|
| Duane Arnold nuclear power plant 1 | Retired | 624 |
Other BWR-4 (Mark 1) units
18 units worldwide share this model designation.
| Unit | Country | Status | Gross MW |
|---|---|---|---|
| Browns Ferry nuclear power plant 1 | United States | 1,256 | |
| Browns Ferry nuclear power plant 2 | United States | 1,259 | |
| Browns Ferry nuclear power plant 3 | United States | 1,260 | |
| Brunswick nuclear power plant 1 | United States | 990 | |
| Brunswick nuclear power plant 2 | United States | 960 | |
| Cooper nuclear power plant | United States | 801 | |
| Edwin I Hatch nuclear power plant 1 | United States | 911 | |
| Edwin I Hatch nuclear power plant 2 | United States | 921 | |
| Fermi nuclear power plant 2 | United States | 1,198 | |
| Hope Creek nuclear power plant 1 | United States | 1,240 | |
| James A Fitzpatrick nuclear power plant | United States | 849 | |
| Peach Bottom nuclear power plant 2 | United States | 1,412 |
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 2026-06-27
- GEM.wiki entry (further reading) — CC BY-SA 4.0 — linked, not quoted