Northern Iowa Windpower II
Worth County, Iowa · EIA plant ID 56383 · Operator: Avangrid Renewables Inc
Nameplate80MWSummer 80 MW
Generators1in service
Net generation134GWh12 mo to Dec 2025
Capacity factor19%wind units, summer MW
Heat rate—thermal plants only
First online2008
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), wind 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) |
|---|---|---|---|
| 2008 | 199.6 | 28.4% | — |
| 2009 | 199 | 28.4% | — |
| 2010 | 195.8 | 28.0% | — |
| 2011 | 201 | 28.7% | — |
| 2012 | 208.2 | 29.6% | — |
| 2013 | 201.5 | 28.7% | — |
| 2014 | 217.7 | 31.1% | — |
| 2015 | 209.3 | 29.9% | — |
| 2016 | 204.6 | 29.1% | — |
| 2017 | 194.5 | 27.8% | — |
| 2018 | 174.3 | 24.9% | — |
| 2019 | 158.1 | 22.6% | — |
| 2020 | 139.8 | 19.9% | — |
| 2021 | 106.8 | 15.2% | — |
| 2022 | 142.6 | 20.3% | — |
| 2023 | 129.1 | 18.4% | — |
| 2024 | 130.2 | 18.5% | — |
| 2025 | 134.3 | 19.2% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| TOI2 | Onshore Wind Turbine | WT | 80 | 80 | Jan 2008 | Operating | — | gamesa G87-2.0 |
Owner / operator
Operator: Avangrid Renewables Inc. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Avangrid Renewables Inc | 100.0% | 80 MW |
Nearby plants
Within 80 km.
| Top of Iowa Windfarm III | 30 MW | 1.9 km |
| Windwalkers LLC | 2 MW | 6.7 km |
| Roeder Family Wind Farm LLC | 2 MW | 7.2 km |
| Top of Iowa Windfarm | 80 MW | 9.9 km |
| POET Biorefining-Hanlontown, LLC | 4 MW | 10.8 km |
| Lime Creek | 90 MW | 14.6 km |