Single-unit nuclear station near Brownville, Nebraska
Cooper Nuclear Station is Nebraska Public Power District's single-unit nuclear plant near Brownville, Nebraska. EIA reports 801 MW nameplate and 768.5 MW summer capability. The GE Type 4 boiling-water reactor uses a Mark I containment and operates under NRC docket 05000298.
Answers use this researched asset profile with live SPP data. Ask about ownership, equipment, project history, or current grid context.
Live SPP public data · answers can be wrong, verify against source data or the ISO.
June 2026 preliminary EIA inventory.
June 2026 preliminary EIA inventory.
NRC reactor-license basis; not electric capacity.
June 2026 preliminary EIA inventory; status OP.
Similar plants ranked by technology, capacity, and distance.
Operating generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| 1 | 801 MW 768.5 MW summer | Nuclear Nuclear · ST | Mar 1974 | Operating |
Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.
Monthly generation is reported through EIA-923. Capacity factor uses the current EIA nameplate capacity and is shown only for complete calendar years.
Deterministic links to ERCOT market resources, price records, outage disclosures, queue records, and nearby infrastructure. Candidate joins remain labeled until corroborated.
Parties, market resources, and identifiers tied to this asset, with owner, operator, developer, EPC, compliance provider, and interconnecting entity roles kept separate.
| Largest reported plants | Capacity | State | |
|---|---|---|---|
| Gerald Gentleman | 1,362.6 MW | NE | |
| Cooper Nuclear StationCurrent | 801 MW | NE | |
| Beatrice | 247.1 MW | NE | |
| Sheldon | 228.7 MW | NE | |
| Canaday | 108.8 MW | NE | |
| Ainsworth Wind | |||
Project milestones and public references behind the asset profile.
Nuclear steam turbine; June 2026 preliminary EIA inventory.
Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.
Cooper Nuclear Station has a reported capacity of 801 MW. Source: EIA Form 860M.
Cooper Nuclear Station is a Nuclear steam turbine facility in Nemaha County, NE, participating in the SPP market.
Cooper Nuclear Station is in Nemaha County, NE, inside the SPP balancing area.
Cooper Nuclear Station is operated by Nebraska Public Power District according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.
Cooper Nuclear Station reports a commercial operation date of 1974-03. Source: EIA Form 860M.
Cooper Nuclear Station reported 6,926.5 GWh over the twelve months to 2026-04. Figures are net generation as filed to EIA-923.
By capacity, Cooper Nuclear Station ranks #51 of 54 operating plants of the same technology nationally. It ranks #1 of 1 in NE.
Plants within 25 km, nearest first, regardless of technology. Proximity is straight-line distance between mapped plant coordinates; it does not by itself establish a shared point of interconnection.
Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.