Upland Prairie
Clay County, Iowa · EIA plant ID 61564 · Operator: Interstate Power and Light Co
Nameplate299MWSummer 299 MW
Generators1in service
Net generation1,078GWh12 mo to Aug 2026
Capacity factor41%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 | 771.3 | 35.1% | — |
| 2020 | 1,040.5 | 39.6% | — |
| 2021 | 869.1 | 33.1% | — |
| 2022 | 1,190.9 | 45.4% | — |
| 2023 | 1,063.2 | 40.6% | — |
| 2024 | 1,091.5 | 41.5% | — |
| 2025 | 1,084.9 | 41.4% | — |
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 | 299.3 | 299.3 | Mar 2019 | Operating | — | ge 2.5-116 |
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% | 299 MW |
Nearby plants
Within 80 km.
| Earl F Wisdom | 119 MW | 9.1 km |
| Lost Lakes Wind Farm LLC | 100 MW | 15.5 km |
| Spencer Gas Turbine | 24 MW | 18 km |
| Flying Cloud Power Partners LLC | 44 MW | 20.7 km |
| Milford | 7 MW | 21 km |
| O'Brien Wind | 250 MW | 22.3 km |