Wyoming generates far more electricity than its roughly 580,000 residents consume. Coal from the Powder River Basin, wind across the high plains, water released through Bureau of Reclamation dams, and natural gas all feed plants scattered over a very large state. Much of that power leaves on transmission lines bound for neighboring states.

Our database lists 61 plants. They range from utility-scale coal stations to wind farms, small hydro projects and industrial facilities that make their own power. Most are not offices that welcome walk-in visitors. They are secured industrial sites, so the useful question is usually who to contact, not where to park. The sections below explain who regulates these facilities, how the regions differ, and how to get a real answer.

How Power Plants Are Regulated in Wyoming

No single office runs every plant in the state. Responsibility is split among several bodies, and knowing which one handles your question can save you weeks of phone calls.

Rural electric cooperatives and municipal utilities are different. They are generally run by their own boards or councils, so a rate or billing question goes to that board first, not to the PSC.

Coal Country: Converse, Campbell and Carbon Counties

Wyoming is the nation's largest coal producer, and the plants in the east and center of the state show it. Glenrock has the most listings of any city in the state, including Glenrock Coal (Dave Johnston Mine) at 1026 55 Ranch Road. The Dave Johnston station near Glenrock is a PacifiCorp coal plant tied to a nearby mine. Converse County also includes Douglas, where our database lists Fort Randall on U.S. 18.

Farther north, Campbell County sits on top of the Powder River Basin. Gillette is home to the Neil Simpson listing at 13151 Highway Street, and Wright has the Two Elk Generating Station on Wyoming Highway 450. Plants here are built close to the mines, because hauling coal over long distances costs too much.

Carbon County mixes older and newer technology. Medicine Bow has four listings, led by the entry on Carbon County Road 3. Hanna hosts the Simpson Ridge Wind Farm on Wyoming 72. Sinclair, a refinery town, appears with the Sinclair Oil Refinery at 100 Lincoln Highway, an industrial site that uses its own steam and power systems.

If you are tracking a coal plant, expect the operator to be an investor-owned utility or a cooperative, not a government office. Retirements and fuel conversions have been discussed at several coal stations in recent years. Confirm the current operating status with the owner before you rely on an older listing.

Wind, Hydro and Gas Across Southern and Western Wyoming

Wind is the fastest-growing part of the state's fleet, and the southeast corner has the greatest concentration of it. Cheyenne, in Laramie County, lists Silver Sage Windpower on Happy Jack Road. Albany County carries Boswell Wind I near Laramie, Boswell Wind IV and Rock River I near McFadden, which is why Rock River shows four listings. In the southwest, Uinta County includes the Wyoming Wind Energy Center near Bear River and Mountain Wind Power II near Fort Bridger. Casper Wind Farm sits at Evansville, in Natrona County.

Sweetwater County is where industry and power generation overlap. The Jim Bridger plant and its coal mine are east of Point of Rocks. Green River and Rock Springs list FMC Westvaco and Simplot Phosphates, large processing plants in the trona and phosphate economy that run their own generating or steam equipment.

Western Wyoming leans on water and gas. Lincoln County has PacifiCorp's Naughton Power Plant outside Kemmerer, plus Swift Creek at Afton and Strawberry Creek near Bedford. The last two are small hydro-scale listings in the Star Valley area. In Park County, the Buffalo Bill listing on the North Fork Highway near Cody and the Heart Mountain listing near Powell reflect Reclamation's hydropower and irrigation system on the Shoshone River.

Elsewhere, Fremont County lists the Big Sand Draw Plant near Riverton. Goshen and Platte counties add Western Sugar Coop in Torrington and the Laramie River Station near Wheatland, which is run by a regional cooperative.

Metro Versus Rural: Finding the Right Contact in Wyoming

Wyoming has no large metro area. Cheyenne and Casper are the biggest cities, and most plants are an hour or more from the nearest town of any size. That changes how you approach them.

In Cheyenne you can reach the PSC, DEQ and the governor's offices in person, and utility business offices are easy to find. Out in Converse, Carbon or Sweetwater counties, a plant may be 10 to 30 miles from the nearest paved turnoff. Some listings, like Boswell Wind IV, show only a placeholder address, so a street address will not get you there. Winter makes this worse. Wind and snow close stretches of I-80 and other highways, sometimes for hours.

Here are practical steps that work in most cases:

The best time to go is late spring through early fall, when roads are open and wind is lighter. For a stalled complaint, the PSC is the next step for investor-owned utilities.

Power plant facilities in Wyoming include a mix of federal, state, and municipally owned generation assets that contribute to the region's overall electricity supply. Wyoming's energy mix and the number of publicly owned facilities reflect the state's natural resources, regulatory environment, and historical development of its utility infrastructure.

Power Plant locations are available in 26 cities across Wyoming. They are spread across 14 counties.

Areas with the highest concentration of power plant locations include Glenrock, Gillette, Medicine Bow, often reflecting proximity to water resources, fuel supply infrastructure, or industrial demand centers.

Residents of Wyoming who are customers of a municipal or public power utility can contact their local power authority for billing assistance, energy efficiency programs, and information about planned outages or infrastructure upgrades in their service area.

Power Plant by Counties

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Residents of Wyoming who receive electricity service from a publicly owned utility can visit or contact that utility's customer service office to learn about outage reporting, billing options, and energy assistance programs. For information about a specific power generation facility in Wyoming, contacting the state's public utility commission is often the best starting point.

Browse Power Plant by county across Wyoming to find the nearest location.

Reading the Wyoming Plant Listings Before You Travel

The listings on this page come from public records, so some entries are more complete than others. A few have only a county road, a highway number or the word "Tbd" in place of an address. Treat those as a starting point and confirm the location with the owner.

Names can also mislead. Mining operations, processing plants and refineries sit beside generating stations in the same industrial areas. Glenrock's eight listings, for example, reflect a cluster of related industrial sites in Converse County, not eight separate public offices. In the same way, Sinclair Oil Refinery and Western Sugar Coop in Torrington are industrial plants that appear here because they run their own power or steam systems.

Distances in Wyoming are long. Gillette, Glenrock, Rock Springs and Cody are each in a different corner of the state, and a single day will not cover more than one or two of them. Group your calls by county and use the county pages to narrow the search. If your question is about a rate, a permit or a new project, start with the regulator that matches it, then reach out to the plant.

Several agencies share the job. The Wyoming Public Service Commission regulates rates and service for investor-owned utilities. The Industrial Siting Council, part of the Department of Environmental Quality, reviews permits for large industrial projects. DEQ's Air Quality and Water Quality divisions issue emission and discharge permits. Counties have a say over wind projects through local permitting. For hydropower at federal dams, the Bureau of Reclamation is the operator. Pick the agency that matches your question: rates, siting, pollution or local land use.

Most plants do not allow drop-in visits because of safety and security rules, so you need to arrange a tour ahead of time with the owner. Schools, engineering groups and community organizations have the best chance. Park County is the easiest place to see a generating site, since Buffalo Bill Dam near Cody has a seasonal visitor center. Check hours before you go. Expect to show ID and follow a guide, and do not plan on photographing restricted areas without asking first.

Glenrock sits next to the Dave Johnston coal plant and its mine, and the records for that industrial area are split into several entries. Cheyenne is much larger as a city, but its generation is mostly outside town, such as Silver Sage Windpower on Happy Jack Road, and the state capital does not host a cluster of related plants. The count reflects how records are filed, not how large each city is. Open the individual listing and check the address and operator.

Call the utility that sends your bill, not the plant. In much of the state that is Rocky Mountain Power or Black Hills Energy. In other areas it is a cooperative or a municipal utility, such as Lower Valley Energy in the Star Valley area of Lincoln County. The outage number is printed on your bill and posted on the utility's website. If a downed line is dangerous, call 911 first. If a utility does not resolve a billing dispute, the Public Service Commission accepts complaints about the investor-owned companies.

In general, yes. State law gives county commissioners a role in permitting wind energy facilities, on top of any state review for larger projects and environmental permits. That is why wind farms in Albany County, Carbon County and Uinta County each went through local hearings. If you live near a proposed project, contact the county commissioners' office, ask for the application file, and find out when public comment is open. Meetings are usually held on a regular schedule.

Some industrial plants generate their own electricity or steam, so they appear in power records even though their main business is something else. Western Sugar Coop in Torrington, the Sinclair Oil Refinery, FMC Westvaco in Green River and Simplot Phosphates in Rock Springs are examples in this directory. They typically do not sell power to the public. If you need to contact one, ask for the plant or facilities department, and use the county pages for Goshen County or Sweetwater County to compare nearby sites.