Sumpter Energy Associates
Wayne County, Michigan · EIA plant ID 54536 · Operator: EPP Renewable Energy
Nameplate11MWSummer 11 MW
Generators14in service
Net generation52GWh12 mo to Dec 2025
Capacity factor53%other units, summer MW
Heat rate—Btu/kWhfossil units, electric fuel, HHV
First online1992
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), other 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.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 85.3 | 73.0% | 12,371 |
| 2002 | 76.2 | 64.7% | 12,371 |
| 2003 | 76.6 | 72.8% | 13,044 |
| 2004 | 81.8 | 77.6% | — |
| 2005 | 87.4 | 83.1% | — |
| 2006 | 101.8 | 96.9% | — |
| 2007 | 97.5 | 92.7% | — |
| 2008 | 98.4 | 93.4% | — |
| 2009 | 102.8 | 97.8% | — |
| 2010 | 96.2 | 91.5% | — |
| 2011 | 97.7 | 92.9% | — |
| 2012 | 76.1 | 72.2% | — |
| 2013 | 92.1 | 87.6% | — |
| 2014 | 7.4 | 7.0% | — |
| 2015 | 6.5 | 6.2% | — |
| 2016 | 5.9 | 5.6% | — |
| 2017 | 6.5 | 6.2% | — |
| 2018 | 6.6 | 6.3% | — |
| 2019 | 1.5 | 1.5% | — |
| 2020 | 72.1 | 73.3% | — |
| 2021 | 71.6 | 73.0% | — |
| 2022 | 64.3 | 65.5% | — |
| 2023 | 58 | 59.2% | — |
| 2024 | 63.4 | 64.4% | — |
| 2025 | 52.5 | 53.5% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 202 | Landfill Gas | IC | 0.8 | 0.8 | Jul 1998 | Operating | — | coming soon |
| 203 | Landfill Gas | IC | 0.8 | 0.8 | Jul 1998 | Operating | — | coming soon |
| 204 | Landfill Gas | IC | 0.8 | 0.8 | Jul 1998 | Operating | — | coming soon |
| 205 | Landfill Gas | IC | 0.8 | 0.8 | Jul 1998 | Operating | — | coming soon |
| 386 | Landfill Gas | IC | 0.8 | 0.8 | Jul 1992 | Operating | — | coming soon |
| 388 | Landfill Gas | IC | 0.8 | 0.8 | Jul 1992 | Operating | — | coming soon |
| 389 | Landfill Gas | IC | 0.8 | 0.8 | Jul 1992 | Operating | — | coming soon |
| 392 | Landfill Gas | IC | 0.8 | 0.8 | Jul 1992 | Operating | — | coming soon |
| 435 | Landfill Gas | IC | 0.8 | 0.8 | Jul 1992 | Operating | — | coming soon |
| 437 | Landfill Gas | IC | 0.8 | 0.8 | Jul 1992 | Operating | — | coming soon |
| 440 | Landfill Gas | IC | 0.8 | 0.8 | Jul 1992 | Operating | — | coming soon |
| 447 | Landfill Gas | IC | 0.8 | 0.8 | Jul 1992 | Operating | — | coming soon |
| 464 | Landfill Gas | IC | 0.8 | 0.8 | Jul 1992 | Operating | — | coming soon |
| 467 | Landfill Gas | IC | 0.8 | 0.8 | Jul 1992 | Operating | — | coming soon |
| 201 | Landfill Gas | IC | 0.8 | 0.8 | Jul 1998 | Retired Jun 2019 | — | coming soon |
Owner / operator
Operator: EPP Renewable Energy. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| EPP Renewable Energy | 100.0% | 11 MW |
Nearby plants
Within 80 km.
| Sumpter | 340 MW | 7.3 km |
| White Tail Solar | 140 MW | 13 km |
| French Landing Dam | 2 MW | 13 km |
| Strasburg Solar Park | — | 15.2 km |
| East. Michigan Univ. Heating Plant | 8 MW | 19.2 km |
| Superior | 64 MW | 21.2 km |