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801 MW Nuclear operating in Nemaha, NE
801 MW
Nameplate Capacity
1
Generators
unit
Nuclear
Technology
1974
Operating Since
Coordinates
40.3628, -95.6408
County
Nemaha, NE
Nearby Plants
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| 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 | — |
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
ISO/RTO
SPP
Market
ISO/RTO Member
NERC Region
MRO — Midwest Reliability Organization
Balancing Authority
Southwest Power Pool (SWPP)
Grid Voltage
345.0 kV
Regulatory Status
RE — Regulated
Entity Type
Political Subdivision
Sector
Electric Utility
Monthly net generation as reported to EIA-923 — useful for historical context. Confidence varies sharply by fuel type; the band above and the “About this data” button explain the caveats specific to this plant and how InfraSure’s in-house model handles them.
600.2K MWh
Latest Month
6.9M MWh
Annual Generation
98.5%
Capacity Factor
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No financial data available for this plant.
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Market Position
ISO/RTO Market
SPP
LMP Node
NPPD_COOPR
Pricing Hub
SPPNORTH_HUB
Location Type
Settlement Location
Node Source
EIA-860 direct report
No wholesale contracts disclosed in FERC EQR for this plant.
FERC EQR captures bilateral wholesale energy + capacity contracts ≥$1M/yr filed quarterly by jurisdictional sellers — covers renewable PPAs, thermal energy sales agreements, capacity contracts, and tolling agreements alike. Many plants don't appear: regulated-utility output flows to ratepayers via cost-of-service rather than bilateral contracts; small projects fall below the filing threshold; tax-equity-financed renewables route offtake to investors not utilities; merchant plants sell into ISO clearing markets without bilateral contracts. News-extracted buyer facts (below) may surface contracts disclosed only through announcements.
Last updated 2026-03-26
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NPPD publicly confirms it is assessing 16 communities statewide as candidate sites for new nuclear power reactors.
sourceNebraska communities engage with NPPD's SMR siting process as the study narrows sites for potential next-generation nuclear development.
sourceNPPD's SMR siting study narrows candidate locations to four Nebraska cities, signaling active planning for new nuclear capacity beyond Cooper Nuclear Station.
source