Cooper Nuclear Station — Plant Summary
- EIA Plant ID
- 8036
- Capacity
- 801 MW
- Primary Fuel
- Nuclear
- Technology
- Nuclear
- Status
- Operating
- Location
- Nemaha, NE
- Operating Since
- 1974
- Generators
- 1
- Operator
- Nebraska Public Power District
- Parent Company
- Nebraska Public Power District
- Annual Generation
- 6,921,979 MWh
- Capacity Factor
- 98.5%
- Balancing Authority
- Southwest Power Pool
- ISO/RTO
- SPP
- NERC Region
- MRO
Cooper Nuclear Station
OperatingNuclear
Ranked #1 of 1 Nuclear plants in NE#53 of 57 nationally
801 MW Nuclear operating in Nemaha, NE — Southwest Power Pool
EIAGEMWD
801 MW
Nameplate Capacity
1
Generators
unit
Nuclear
Technology
1974
Operating Since
Location
Coordinates
40.3628, -95.6408
County
Nemaha, NE
Nearby Plants
- Loess HillsWind5 MW · 10.3 km
- AuburnDistillate Oil18.7 MW · 17.6 km
- Cow BranchWind50.4 MW · 17.7 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Nebraska Public Power District | Entergy Nuclear Operations | Nebraska Public Power District |
| Owner(s) | Nebraska Public Power District | Nebraska Public Power District | Nebraska Public Power District |
| Status | Operating | operating | — |
Ownership Chain
About
Cooper Nuclear Station (CNS) is a boiling water reactor (BWR) type nuclear power plant located on a 1,251-acre (506 ha) site near Brownville, Nebraska between Missouri River mile markers 532.9 and 532.5, on Nebraska's border with Missouri. It is the largest single-unit electrical generator in Nebraska.
Read more on WikipediaCooper Nuclear Station is located in Nemaha County, Nebraska. The plant is owned and operated by Nebraska Public Power District. It is the largest and only nuclear power plant in the state. The plant has a total capacity of 801 MW from a single nuclear generator. It began operating in 1974.
The plant operates within the Southwest Power Pool (SPP) balancing authority and the Midwest Reliability Organization (MRO) NERC region. In the latest year with available data, Cooper Nuclear Station generated 6,921,979 MWh of electricity, achieving a capacity factor of 98.5%. It is ranked 51st out of 55 nuclear plants nationally.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
MRO
Balancing Authority
Southwest Power Pool
Grid Voltage
345 kV
Regulatory Status
RE
Entity Type
Political Subdivision
Sector
Electric Utility
Generation
600.2K MWh
Latest Month
6.9M MWh
Annual Generation
98.5%
Capacity Factor
Jan 2023 – Dec 2025
Financial Data
No financial data available for this plant.
Pricing & Market Data
HIGH confidenceMarket Position
ISO/RTO Market
SPP
LMP Node
NPPD_COOPR
Pricing Hub
SPP North Hub
Node Source
EIA-860 direct report
News & Articles (10)Beta
Hazards·wildfire
Red Flag Warning: Monona; Harrison; Shelby; Pottawattamie; Mills; Montgomery; Fremont; Page; Knox; Cedar; Thurston; An
Red Flag Warning issued March 21 at 1:04PM CDT until March 22 at 4:00AM CDT by NWS Omaha/Valley NE
NWS Omaha/Valley NE (other)
NWS Omaha/Valley NE·5 days ago
Industry·corporate
Future of Nebraska's nuclear power
For 50 years, Cooper Nuclear Station has provided energy to over 300,000 Nebraska homes. Dan Buman, special assistant to the CNS vice...
Cooper Nuclear Station (operator)Nebraska (other)
KETV·4 months ago
Industry·corporate
Nebraska community weighs nuclear project as study narrows sites
Cooper Station in Brownville supplies roughly one-third of Nebraska's carbon-free electricity and has remained Nebraska's only operating...
Cooper Station (operator)Nebraska (other)
Nebraska News Service·6 months ago
Industry·corporate
Nebraska Public Power District assesses siting options for nuclear reactors
Nebraska Public Power District (NPPD) is currently considering 16 communities across the state as possible sites for a new nuclear power...
Nebraska Public Power District (operator)
KOLN | Nebraska Local News, Weather, Sports | Lincoln, NE·7 months ago
Last updated 2026-03-21
View all 10 articles