Heritage Garden Wind Farm I LLC
Delta County, Michigan · EIA plant ID 58103 · Operator: DTE Sustainable Generation
Nameplate28MWSummer 28 MW
Generators1in service
Net generation71GWh12 mo to Dec 2025
Capacity factor29%wind units, summer MW
Heat rate—thermal plants only
First online2012
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) |
|---|---|---|---|
| 2012 | 26.7 | 32.6% | — |
| 2013 | 79.9 | 32.6% | — |
| 2014 | 83.4 | 34.0% | — |
| 2015 | 82.1 | 33.5% | — |
| 2016 | 79.8 | 32.5% | — |
| 2017 | 79.9 | 32.6% | — |
| 2018 | 75.4 | 30.8% | — |
| 2019 | 73.8 | 30.1% | — |
| 2020 | 71.6 | 29.1% | — |
| 2021 | 67.5 | 27.5% | — |
| 2022 | 67.6 | 27.5% | — |
| 2023 | 67 | 27.3% | — |
| 2024 | 74.9 | 30.5% | — |
| 2025 | 71 | 28.9% | — |
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 | 28 | 28 | Sep 2012 | Operating | — | gamesa G97-2.0 |
Owner / operator
Operator: DTE Sustainable Generation. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| DTE Sustainable Generation | 100.0% | 28 MW |
Nearby plants
Within 80 km.
| Garden 1 Solar Park | 1 MW | 0.1 km |
| Garden 2 Solar Park | 1 MW | 0.3 km |
| Fairbanks Wind Park | 73 MW | 15.2 km |
| Manistique | 5 MW | 27.9 km |
| Gladstone | 23 MW | 36.9 km |
| Escanaba Mill | 122 MW | 43.1 km |