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
- Coordinates
- 42.2642, -83.6420
SUPERIOR, a 64 MW Oil power plant in Washtenaw County, Michigan. Operated by THE DTE ELECTRIC COMPANY, commissioned 1966.
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.