Power Plants in Wyoming
Bywatts lists 63 power plants in Wyoming.
Weather peril risk for Wyoming projects
23 Wyoming counties carry a FEMA National Risk Index hazard profile. Earthquake is the leading peril in 7 of them, and Weston County ranks highest for modeled catastrophe exposure at 4.9 of 5.
Wyoming counties ranked by modeled catastrophe exposure
| County | Exposure score | Band | Leading peril | FEMA rating | Insurability signal |
|---|---|---|---|---|---|
| Weston County | 4.9 of 5 | Critical | Hail | Relatively Moderate | Difficult |
| Campbell County | 4.9 of 5 | Critical | Hail | Relatively High | Difficult |
| Crook County | 4.9 of 5 | Critical | Winter weather | Relatively Moderate | Difficult |
| Goshen County | 4.9 of 5 | Critical | Hail | Relatively Moderate | Difficult |
| Platte County | 4.2 of 5 | Critical | Wildfire | Relatively Low | Constrained |
| Laramie County | 4.1 of 5 | High | Wildfire | Relatively Moderate | Constrained |
| Johnson County | 4.0 of 5 | High | Riverine flooding | Relatively Low | Constrained |
| Niobrara County | 3.7 of 5 | High | Winter weather | Relatively Low | Constrained |
| Sheridan County | 3.6 of 5 | High | Riverine flooding | Relatively Moderate | Constrained |
| Converse County | 3.1 of 5 | Elevated | Wildfire | Relatively Moderate | Standard |
What this means for insurance placement in Wyoming
9 of 23 assessed Wyoming counties flag as Constrained or Difficult on the modeled insurability signal, which is where percentage hail and named windstorm deductibles, and any sublimit discussion, tend to start. The signal is a screening output, not a carrier decision.
Score a Wyoming county for hail, wind and flood exposure in the weather risk calculator
Data source and vintage
- FEMA rating, national percentile and events per year are reported by the FEMA National Risk Index for the county.
- Exposure score is derived by Bywatts as the national percentile of the county's modeled solar loss rate, so a 5 is the worst national quintile. Band and insurability signal are Bywatts screening outputs, not carrier decisions.
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. The solar vulnerability layer that turns FEMA building loss into modeled solar loss was derived by Bywatts and revised on physical reasoning. It has not been reviewed by a practising underwriter.
| Plant | Fuel | Capacity (MW) | Operator |
|---|---|---|---|
| JIM BRIDGER | Coal | 2,318 | PACIFICORP |
| LARAMIE RIVER STATION | Unknown | 1,710 | BASIN ELECTRIC POWER COOP |
| DAVE JOHNSTON | Coal | 817 | PACIFICORP |
| NAUGHTON | Coal | 707 | PACIFICORP |
| DRY FORK STATION | Unknown | 390 | BASIN ELECTRIC POWER COOP |
| WYODAK | Coal | 362 | PACIFICORP |
| TOP OF THE WORLD WINDPOWER PROJECT | Unknown | 200 | DUKE ENERGY TOP OF THE WORLD WINDPOWER |
| GLENROCK | Wind | 144 | PACIFICORP |
| WYOMING WIND ENERGY CENTER | Wind | 144 | FPL ENERGY WYOMING WIND LLC |
| SEVEN MILE HILL | Wind | 124 | PACIFICORP |
| NEIL SIMPSON II | Coal | 120 | BLACK HILLS POWER INC |
| WYGEN III | Unknown | 116 | BLACK HILLS POWER INC |
| DUNLAP | Unknown | 116 | PACIFICORP |
| SHUTE CREEK FACILITY | Natural Gas | 108 | EXXON MOBIL PRODUCTION CO |
| HIGH PLAINS | Wind | 103 | PACIFICORP |
| ROLLING HILLS | Wind | 103 | PACIFICORP |
| CAMPBELL HILL WINDPOWER | Wind | 99 | DUKE ENERGY DEGS CAMPBELL HILL |
| WYGEN 2 | Coal | 95 | BLACK HILLS POWER INC |
| WYGEN 1 | Coal | 88 | BLACK HILLS POWER INC |
| MOUNTAIN WIND POWER II LLC | Wind | 80 | EDISON MISSION ENERGY |
| FREMONT CANYON | Hydro | 67 | U S BUREAU OF RECLAMATION |
| MOUNTAIN WIND POWER LLC | Wind | 61 | EDISON MISSION ENERGY |
| SEMINOE | Hydro | 52 | U S BUREAU OF RECLAMATION |
| ROCK RIVER I LLC | Wind | 50 | AES WIND GENERATION INC |
| SILVER SAGE WINDPOWER | Wind | 42 | DUKE ENERGY DEGS SILVER SAGE WNDPWR LLC |
| ALCOVA | Hydro | 41 | U S BUREAU OF RECLAMATION |
| FOOTE CREEK I | Wind | 41 | AES WIND GENERATION INC |
| FMC WESTVACO | Unknown | 41 | FMC WESTVACO |
| NEIL SIMPSON GAS TURBINE #2 | Natural Gas | 40 | BLACK HILLS POWER INC |
| GLENDO | Hydro | 38 | U S BUREAU OF RECLAMATION |
| KORTES | Hydro | 36 | U S BUREAU OF RECLAMATION |
| OSAGE | Coal | 35 | BLACK HILLS POWER INC |
| GENERAL CHEMICAL | Coal | 30 | TATA CHEMICALS PARTNERS |
| MCFADDEN RIDGE | Wind | 30 | PACIFICORP |
| HAPPY JACK WINDPOWER PROJECT | Wind | 29 | DUKE ENERGY DEGS HAPPY JACK |
| FOOTE CREEK III | Wind | 25 | TERRA-GEN OPERATING CO LLC |
| ARVADA | Natural Gas | 23 | BASIN ELECTRIC POWER COOP |
| BARBER CREEK | Natural Gas | 23 | BASIN ELECTRIC POWER COOP |
| HARTZOG | Natural Gas | 23 | BASIN ELECTRIC POWER COOP |
| NEIL SIMPSON | Coal | 22 | BLACK HILLS POWER INC |
| BUFFALO BILL | Hydro | 18 | U S BUREAU OF RECLAMATION |
| CASPER WIND FARM | Wind | 17 | CHEVRON USA |
| FOOTE CREEK IV | Wind | 17 | AES WIND GENERATION INC |
| BOYSEN | Hydro | 15 | U S BUREAU OF RECLAMATION |
| SIMPLOT PHOSPHATES | Other | 12 | SIMPLOT PHOSPHATES LLC |
| FONTENELLE | Hydro | 10 | U S BUREAU OF RECLAMATION |
| SINCLAIR OIL REFINERY | Natural Gas | 7 | SINCLAIR OIL CORP |
| GUERNSEY | Hydro | 6 | U S BUREAU OF RECLAMATION |
| MEDICINE BOW | Wind | 6 | PLATTE RIVER POWER AUTHORITY |
| BEAVER CREEK GAS PLANT | Natural Gas | 5 | DEVON ENERGY PRODUCTION CO |
| HEART MOUNTAIN | Hydro | 5 | U S BUREAU OF RECLAMATION |
| SPIRIT MOUNTAIN | Hydro | 5 | U S BUREAU OF RECLAMATION |
| SHOSHONE | Hydro | 3 | U S BUREAU OF RECLAMATION |
| GARLAND CANAL POWER PLANT | Unknown | 3 | SHOSHONE IRRIGATION DISTRICT |
| LAKE | Oil | 3 | NORTHWESTERN ENERGY |
| ELK BASIN GASOLINE PLANT | Other | 2 | ENCORE ENERGY PARTNERS OPERATING LLC |
| OLD FAITHFUL | Oil | 2 | NORTHWESTERN ENERGY |
| WESTERN SUGAR COOP - TORRINGTON | Unknown | 2 | WESTERN SUGAR COOPERATIVE |
| FOOTE CREEK II | Wind | 2 | TERRA-GEN OPERATING CO LLC |
| SWIFT CREEK | Unknown | 2 | LOWER VALLEY ENERGY INC |
| PILOT BUTTE | Hydro | 2 | U S BUREAU OF RECLAMATION |
| STRAWBERRY CREEK | Hydro | 2 | LOWER VALLEY ENERGY INC |
| MEDICINE BOW FUEL & POWER LLC | Unknown | · | MEDICINE BOW FUEL & POWER LLC |