Iowa Hydro LLC
Jackson County, Iowa · EIA plant ID 1067 · Operator: Zero6 Energy Hydro
Nameplate1MWSummer 1 MW
Generators2in service
Net generation6GWh12 mo to Aug 2026
Capacity factor57%hydro units, summer MW
Heat rate—thermal plants only
First online1924
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), hydro 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 | 5.3 | 50.3% | — |
| 2002 | 5.1 | 48.1% | — |
| 2003 | 4 | 40.2% | — |
| 2004 | 2.4 | 24.0% | — |
| 2005 | 1.8 | 18.4% | — |
| 2006 | 2.5 | 24.6% | — |
| 2007 | 5.8 | 55.5% | — |
| 2008 | 3.4 | 32.2% | — |
| 2009 | 7.7 | 73.6% | — |
| 2010 | 9.1 | 86.3% | — |
| 2011 | 8.5 | 80.4% | — |
| 2012 | 5.6 | 53.0% | — |
| 2013 | 6 | 57.5% | — |
| 2014 | 6.3 | 60.0% | — |
| 2015 | 6.4 | 60.8% | — |
| 2016 | 8 | 75.9% | — |
| 2017 | 7 | 66.9% | — |
| 2018 | 6.6 | 62.7% | — |
| 2019 | 8.4 | 79.5% | — |
| 2020 | 7.9 | 75.2% | — |
| 2021 | 6.2 | 58.6% | — |
| 2022 | 5.3 | 50.8% | — |
| 2023 | 4.3 | 41.0% | — |
| 2024 | 5.2 | 49.6% | — |
| 2025 | 5.8 | 55.3% | — |
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 | Conventional Hydroelectric | HY | 0.6 | 0.6 | Jan 1924 | Operating | — | coming soon |
| 2 | Conventional Hydroelectric | HY | 0.6 | 0.6 | Jan 1924 | Operating | — | coming soon |
Owner / operator
Operator: Zero6 Energy Hydro. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Zero6 Energy Hydro | 100.0% | 1 MW |
Nearby plants
Within 80 km.
| Maquoketa 2 | 8 MW | 3.1 km |
| Maquoketa 1 | 24 MW | 4.7 km |
| Preston (IA) | 4 MW | 25.1 km |
| Hawkeye Solar, LLC | — | 26.1 km |
| Hawkeye Solar II, LLC | — | 26.1 km |
| Bellevue | 10 MW | 30.6 km |