Duane Arnold Energy CenterRetired
Linn County, Iowa · EIA plant ID 1060 · Operator: NextEra Energy Duane Arnold LLC
×680 MW nuclear retired since 2020 (latest Nov 2020)
Nameplate—MWSummer — MW
Generators0in service
Net generation—GWh12 mo
Capacity factor—no 923 generation in the last 12 months
Heat rate—thermal plants only
First online—
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), primary-fuel 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 | 3,852.7 | 84.6% | — |
| 2002 | 4,574 | 92.3% | — |
| 2003 | 3,987.7 | 81.0% | — |
| 2004 | 4,928.9 | 99.8% | — |
| 2005 | 4,538.3 | 89.2% | — |
| 2006 | 5,095.4 | 100.2% | — |
| 2007 | 4,518.9 | 89.0% | — |
| 2008 | 5,282.2 | 103.7% | — |
| 2009 | 4,678.9 | 88.8% | — |
| 2010 | 4,450.6 | 84.5% | — |
| 2011 | 5,215.2 | 99.0% | — |
| 2012 | 4,347 | 82.3% | — |
| 2013 | 5,320.8 | 101.0% | — |
| 2014 | 4,152.5 | 78.8% | — |
| 2015 | 5,243.4 | 99.5% | — |
| 2016 | 4,702.7 | 89.0% | — |
| 2017 | 5,213.5 | 99.0% | — |
| 2018 | 4,895.4 | 92.9% | — |
| 2019 | 5,235.7 | 99.4% | — |
| 2020 | 2,904.9 | 66.0% | — |
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 | 679.5 | 601.4 | Feb 1975 | Retired Nov 2020 | — | coming soon |
Owner / operator
Operator: NextEra Energy Duane Arnold LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
Nearby plants
Within 80 km.
| Pleasant Creek Unit 1 | 50 MW | 0.5 km |
| Pleasant Creek Unit 2 | 150 MW | 0.5 km |
| Alliant SBG 9802 Toyota | retired | 9.9 km |
| Alliant SBD 9302 Aegon NP | retired | 10.3 km |
| Alliant SBD 8501 Aegon LI | retired | 10.5 km |
| Alliant SBD 9106 Rockwell CR | 16 MW | 13.1 km |