Gratiot Wind Park
Gratiot County, Michigan · EIA plant ID 57421 · Operator: DTE Electric Company
Nameplate102MWSummer 102 MW
Generators1in service
Net generation215GWh12 mo to Aug 2026
Capacity factor24%wind units, summer MW
Heat rate—thermal plants only
First online2011
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) |
|---|---|---|---|
| 2011 | 2.8 | 1.9% | — |
| 2012 | 235.9 | 26.3% | — |
| 2013 | 256.7 | 28.7% | — |
| 2014 | 264.4 | 29.6% | — |
| 2015 | 272.6 | 30.5% | — |
| 2016 | 253.7 | 28.3% | — |
| 2017 | 260.8 | 29.2% | — |
| 2018 | 239.9 | 26.9% | — |
| 2019 | 252.9 | 28.3% | — |
| 2020 | 257.9 | 28.8% | — |
| 2021 | 233.7 | 26.2% | — |
| 2022 | 251.2 | 28.1% | — |
| 2023 | 190.8 | 21.3% | — |
| 2024 | 215.4 | 24.1% | — |
| 2025 | 234.9 | 26.3% | — |
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 | Onshore Wind Turbine | WT | 102 | 102 | Nov 2011 | Operating | — | ge 1.6 XLE |
Owner / operator
Operator: DTE Electric Company. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| DTE Electric Company | 100.0% | 102 MW |
Nearby plants
Within 80 km.
| Gratiot Solar Park | — | 0.4 km |
| Gratiot County Wind LLC | 110 MW | 4 km |
| St Louis | 6 MW | 9.1 km |
| Meridian Wind Park | 225 MW | 13.1 km |
| Pine River Solar Park | 80 MW | 15 km |
| Pine River Wind Park | 161 MW | 19 km |