English Farms
Poweshiek County, Iowa · EIA plant ID 61565 · Operator: Interstate Power and Light Co
Nameplate172MWSummer 172 MW
Generators1in service
Net generation589GWh12 mo to Aug 2026
Capacity factor39%wind units, summer MW
Heat rate—thermal plants only
First online2019
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), 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) |
|---|---|---|---|
| 2019 | 426.9 | 33.7% | — |
| 2020 | 596.5 | 39.6% | — |
| 2021 | 584.3 | 38.9% | — |
| 2022 | 611.7 | 40.7% | — |
| 2023 | 523.5 | 34.8% | — |
| 2024 | 589.4 | 39.1% | — |
| 2025 | 571 | 38.0% | — |
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 | Onshore Wind Turbine | WT | 171.5 | 171.5 | Mar 2019 | Operating | — | ge 2.5-127 |
Owner / operator
Operator: Interstate Power and Light Co. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Interstate Power and Light Co | 100.0% | 172 MW |
Nearby plants
Within 80 km.
| Montezuma | 10 MW | 9.8 km |
| North English | 340 MW | 11.1 km |
| Brooklyn | 2 MW | 17.9 km |
| Brooklyn City North Plant | 2 MW | 19 km |
| Diamond Trail Wind Farm | 253 MW | 23.3 km |
| Prairie Wind Farm | 168 MW | 28.8 km |