Fermi
Monroe County, Michigan · EIA plant ID 1729 · Operator: DTE Electric Company
Nameplate1,281MWSummer 1,192 MW
Generators5in service
Net generation7,612GWh12 mo to Aug 2026
Capacity factor76%nuclear units, summer MW
Heat rate—Btu/kWhfossil units, electric fuel, HHV
First online1966
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), nuclear 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 | 8,556.3 | 87.9% | 27,129 |
| 2002 | 9,301.2 | 95.6% | — |
| 2003 | 8,120.3 | 83.4% | 19,134 |
| 2004 | 8,448.6 | 86.6% | — |
| 2005 | 8,757 | 90.0% | — |
| 2006 | 7,477.9 | 76.1% | — |
| 2007 | 8,313.8 | 84.6% | — |
| 2008 | 9,613.7 | 97.5% | — |
| 2009 | 7,405.9 | 76.4% | — |
| 2010 | 7,740.8 | 81.4% | 23,708 |
| 2011 | 8,894.1 | 93.5% | 20,400 |
| 2012 | 5,123 | 53.8% | — |
| 2013 | 6,599.6 | 69.4% | — |
| 2014 | 7,793.4 | 79.1% | — |
| 2015 | 7,331.5 | 74.5% | — |
| 2016 | 9,151.4 | 91.3% | 23,293 |
| 2017 | 8,696.5 | 87.0% | — |
| 2018 | 7,420.9 | 74.2% | 23,602 |
| 2019 | 9,886.1 | 98.9% | — |
| 2020 | 6,070.4 | 60.6% | — |
| 2021 | 9,369.4 | 93.7% | — |
| 2022 | 6,662.6 | 66.6% | — |
| 2023 | 9,356 | 93.6% | — |
| 2024 | 8,255.8 | 82.4% | — |
| 2025 | 9,947.7 | 99.5% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 2 | Nuclear | ST | 1,217 | 1,141 | Jan 1988 | Operating | — | coming soon |
| 3 | Petroleum Liquids | GT | 16 | 13 | Apr 1966 | Operating | — | coming soon |
| 4 | Petroleum Liquids | GT | 16 | 12 | Apr 1966 | Operating | — | coming soon |
| GT1 | Petroleum Liquids | GT | 16 | 13 | Apr 1966 | Operating | — | coming soon |
| GT2 | Petroleum Liquids | GT | 16 | 13 | Apr 1966 | Operating | — | coming soon |
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% | 1,281 MW |
Nearby plants
Within 80 km.
| Monroe (MI) | 3,293 MW | 10.9 km |
| Strasburg Solar Park | — | 16.7 km |
| Slocum Energy Storage | 14 MW | 18.7 km |
| Slocum | retired | 18.7 km |
| Trenton Channel | retired | 18.8 km |
| Trenton Channel Energy Center | — | 18.9 km |