Cooper Nuclear Station
Nemaha County, Nebraska · EIA plant ID 8036 · Operator: Nebraska Public Power District
Nameplate801MWSummer 769 MW
Generators1in service
Net generation6,836GWh12 mo to Aug 2026
Capacity factor102%!nuclear units, summer MW
Heat rate—thermal plants only
First online1974
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), nuclear units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Heat rate applies to fuel-burning (thermal) units only.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 5,206.5 | 78.4% | — |
| 2002 | 6,317.2 | 95.1% | — |
| 2003 | 4,492.3 | 67.8% | — |
| 2004 | 6,171.8 | 92.9% | — |
| 2005 | 5,891.9 | 88.5% | — |
| 2006 | 5,910.5 | 88.7% | — |
| 2007 | 6,671.2 | 100.4% | — |
| 2008 | 5,964.1 | 88.2% | — |
| 2009 | 5,734.6 | 84.6% | — |
| 2010 | 6,792.9 | 101.1% | — |
| 2011 | 5,768.1 | 86.0% | — |
| 2012 | 5,817.3 | 86.5% | — |
| 2013 | 6,804 | 101.4% | — |
| 2014 | 5,917.3 | 88.4% | — |
| 2015 | 6,800.8 | 101.6% | — |
| 2016 | 5,925.4 | 87.4% | — |
| 2017 | 6,912.7 | 102.5% | — |
| 2018 | 5,632.1 | 83.5% | — |
| 2019 | 6,951.6 | 103.1% | — |
| 2020 | 6,188.6 | 91.5% | — |
| 2021 | 6,880.6 | 102.0% | — |
| 2022 | 5,618.5 | 83.3% | — |
| 2023 | 6,926.1 | 102.9% | — |
| 2024 | 6,095.7 | 90.3% | — |
| 2025 | 6,922 | 102.8% | — |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| 1 | Nuclear | ST | 801 | 768.5 | Mar 1974 | Operating | — | coming soon |
Owner / operator
Operator: Nebraska Public Power District. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Nebraska Public Power District | 100.0% | 801 MW |
Nearby plants
Within 80 km.
| Loess Hills | 5 MW | 10.3 km |
| Auburn | 19 MW | 17.6 km |
| Cow Branch | 50 MW | 17.7 km |
| Farmers City Wind LLC | 146 MW | 25.6 km |
| Atchison County Wind | 299 MW | 30.6 km |
| Nebraska City | 1,390 MW | 31 km |