Alta Farms II Wind Project, LLC
De Witt County, Illinois · EIA plant ID 64088 · Operator: Alta Farms II Wind Project, LLC
Nameplate201MWSummer 201 MW
Generators1in service
Net generation607GWh12 mo to Aug 2026
Capacity factor35%wind units, summer MW
Heat rate—thermal plants only
First online2023
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) |
|---|---|---|---|
| 2023 | 358.9 | 30.4% | — |
| 2024 | 581.7 | 33.0% | — |
| 2025 | 545.8 | 31.1% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| WT2 | Onshore Wind Turbine | WT | 200.5 | 200.5 | May 2023 | Operating | — | siemens gamesa SG 5.0-145 |
Owner / operator
Operator: Alta Farms II Wind Project, LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Alta Farms II Wind Project, LLC | 100.0% | 201 MW |
Nearby plants
Within 80 km.
| Clinton LFGTE | 3 MW | 12.6 km |
| Top Hat Wind | 204 MW | 14.1 km |
| Pivot Energy IL 7 LLC | — | 16.3 km |
| Clinton Power Station | 1,138 MW | 20.1 km |
| Radfords Run Wind Farm | 278 MW | 21.1 km |
| Sugar Creek Wind One LLC | 202 MW | 23.6 km |