DUBUQUE
Retired 2017Coal power plant
- Capacity
- 70 MW
- Primary fuel
- Coal
- County
- Dubuque County
- Operator
- INTERSTATE POWER AND LIGHT CO
- EIA plant ID
- 1046
- Coordinates
- 42.5031, -90.6586
DUBUQUE, a retired 70 MW Coal power plant in Dubuque County, Iowa. It was retired in 2017, according to EIA-860.
How DUBUQUE compares
It was retired in 2017 according to EIA-860, so it is not counted in Iowa's operating fleet. Its operator, INTERSTATE POWER AND LIGHT CO, runs 8 operating plants in Iowa totaling 2,312 MW. It shares Dubuque County with 4 other operating plants, including JOHN DEERE DUBUQUE WORKS and CASCADE.
Grid neighborhood
The nearest named substation is POTOSI (138 kV), about 15.0 miles away; the closest transmission line found within 10 miles is a 161 kV line, under 0.1 miles away. Another 5 operating power plants totaling 29 MW sit within 25 miles; the largest is JOHN DEERE DUBUQUE WORKS (9 MW, Coal).
Computed by Bywatts from HIFLD power plant, substation and transmission line records and EIA-860 retirement records; distances are straight-line. Sources and methodology
Weather peril exposure
DUBUQUE is a retired 70 MW coal power plant in Dubuque County, IA, formerly operated by INTERSTATE POWER AND LIGHT CO. Dubuque County carries critical modeled catastrophe exposure in the FEMA National Risk Index, scoring 4.3 of 5 at the 81st national percentile. Hail is the leading peril, rated Relatively Moderate by FEMA at the 84th percentile.
The Bywatts loss layer is calibrated to solar PV hardware, so it is not applied to a coal plant. The ratings below are the FEMA National Risk Index county hazard ratings for this location.
Dubuque County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Hail | Relatively Moderate | 84th | 4.4 of 5 | 4.0 |
| Tornado | Relatively Moderate | 83rd | 4.3 of 5 | 0.51 |
| Heat wave | Relatively Low | 80th | 4.2 of 5 | 4.6 |
| Strong wind | Relatively Moderate | 66th | 3.6 of 5 | 5.5 |
| Riverine flooding | Relatively Low | 52nd | 3.1 of 5 | 1.6 |
| Lightning | Relatively Low | 37th | 2.5 of 5 | 39.7 |
| Ice storm | Relatively Low | 32nd | 2.3 of 5 | 0.26 |
| Winter weather | Relatively Moderate | 31st | 2.2 of 5 | 16.8 |
| Earthquake | Very Low | 18th | 1.7 of 5 | <0.01 |
| Wildfire | Very Low | 16th | 1.7 of 5 | <0.01 |
| Hurricane | Very Low | 1st | 1.1 of 5 | <0.01 |
Perils not assessed in Dubuque 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 Dubuque 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.