SUPERIOR
OperatingOil power plant
- Capacity
- 64 MW
- Primary fuel
- Oil
- County
- Washtenaw County
- Operator
- THE DTE ELECTRIC COMPANY
- Status
- Operating
- Commissioned
- 1966
- EIA plant ID
- 1744
- Generators
- 4
- Technology
- Petroleum Liquids
- Net generation (2024)
- -0.347 GWh
- Data vintage
- EIA-860 2024 final; EIA-923 2022-2024 final
- Coordinates
- 42.2642, -83.6420
SUPERIOR, a 64 MW Oil power plant in Washtenaw County, Michigan. Operated by THE DTE ELECTRIC COMPANY, commissioned 1966.
How SUPERIOR compares
With 64 MW of capacity, SUPERIOR ranks 36th among the 171 operating power plants Bywatts maps in Michigan and is the largest of the 23 operating Oil plants in the state. It accounts for about 19% of Michigan's operating Oil capacity and 0.2% of all operating capacity in the state. Nationally it is the 57th-largest of the 544 operating Oil plants in the database. Commissioned in 1966, it is older than 63% of the 168 operating Michigan plants with a recorded commissioning year. Its operator, THE DTE ELECTRIC COMPANY, runs 17 operating plants in Michigan totaling 8,054 MW. It shares Washtenaw County with 4 other operating plants, including CENTRAL POWER PLANT and ADVANCED DISPOSAL.
EIA-860 lists 4 generators at the site with 64 MW of nameplate capacity, all petroleum liquids technology. The plant was a net consumer of electricity in 2024 (-0.347 GWh).
Grid neighborhood
The nearest named substation is BROWNSTOWN (345 kV), about 22.6 miles away; the closest transmission line found within 10 miles is a 120 kV line, under 0.1 miles away. Another 9 operating power plants totaling 613 MW sit within 25 miles; the largest is SUMPTER (340 MW, Natural Gas).
Computed by Bywatts from HIFLD power plant, substation and transmission line records and EIA-860/923 survey data; distances are straight-line. Sources and methodology
Weather peril exposure
SUPERIOR is a 64 MW oil power plant in Washtenaw County, MI, operated by THE DTE ELECTRIC COMPANY, commissioned in 1966. Washtenaw County carries moderate modeled catastrophe exposure in the FEMA National Risk Index, scoring 2.3 of 5 at the 32nd national percentile. Heat wave is the leading peril, rated Relatively Moderate by FEMA at the 83rd percentile.
The Bywatts loss layer is calibrated to solar PV hardware, so it is not applied to an oil plant. The ratings below are the FEMA National Risk Index county hazard ratings for this location.
Washtenaw County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Heat wave | Relatively Moderate | 83rd | 4.3 of 5 | 3.7 |
| Strong wind | Relatively High | 75th | 4.0 of 5 | 5.7 |
| Tornado | Relatively High | 67th | 3.7 of 5 | 0.35 |
| Ice storm | Relatively High | 65th | 3.6 of 5 | 1.8 |
| Winter weather | Relatively Moderate | 46th | 2.8 of 5 | 10.5 |
| Hail | Relatively Moderate | 42nd | 2.7 of 5 | 3.1 |
| Lightning | Relatively High | 35th | 2.4 of 5 | 36.9 |
| Earthquake | Relatively Low | 32nd | 2.3 of 5 | <0.01 |
| Hurricane | Very Low | 19th | 1.8 of 5 | <0.01 |
| Riverine flooding | Relatively Moderate | 12th | 1.5 of 5 | 1.2 |
| Wildfire | Very Low | 6th | 1.2 of 5 | <0.01 |
Perils not assessed in Washtenaw County
These perils carry no usable National Risk Index figure for this county, so they are excluded from the scoring rather than scored zero. A zero would claim the peril was assessed and found benign.
| Peril | Why it is not scored |
|---|---|
| Coastal flooding | FEMA rating is "Not Applicable" for this county |
Model hail, wind and flood exposure for Washtenaw County in the weather risk calculator
Ratings are the FEMA National Risk Index county hazard ratings; the peril score is a Bywatts transform of the FEMA national percentile. Full data sources and the solar vulnerability methodology are in the weather risk calculator.
Modeled estimate for screening and negotiation. Built from FEMA National Risk Index county hazard data and a solar vulnerability layer documented above. Not a quote, a binder, or actuarial advice, and not a substitute for a carrier's own model. Hazard data: FEMA National Risk Index December 2025, synced 2026-07-24. Resolution is county level, not site level.