Beatrice Lang
Wyoming has a regulated electricity market, with consumers often limited to a single provider based on their geographic location. The state's largest electricity company by megawatt hours sold is Rocky Mountain Power. Wyoming's energy sector is dominated by coal, which accounts for 59.61% of electricity generation, followed by wind power at 22.76% and natural gas at 13.30%. The state has 33 electricity companies, including Carbon Power and Light, a not-for-profit cooperative power supplier serving over a million customers across four states. While Wyoming lacks statewide initiatives for renewable energy sources like solar panels, some of its electricity companies offer net metering options, making alternative energy sources more economically viable.
| Characteristics | Values |
|---|---|
| Number of electricity companies | 33 |
| Largest electricity company | Rocky Mountain Power |
| Average electricity rate in 2025 | 12.50 cents per kilowatt hour |
| Average electricity bill in 2025 | $108 |
| Rank in average electricity rates | 9th |
| Number of power plants | 71 |
| Rank in power plants per citizen | 5th |
| Total emissions from electricity use | 12,526,353,043.5 kilograms of CO2 emissions |
| Rank in total emissions | 34th |
| Fuel sources | Coal (59.61%), Wind (22.76%), Natural Gas (13.30%) |
| Renewable Portfolio Standards (RPS) | None |
| Low-income solar programs | None |
| Property tax exemptions for solar panel installation | None |
| Sales tax exemption for solar panel purchase | None |
| Regulating body | Wyoming Public Service Commission (PSC) |
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What You'll Learn
Rocky Mountain Power is Wyoming's largest electricity company
Wyoming has a regulated electricity market, with consumers often limited to a single provider based on their geographic location. The largest electricity company in the state by megawatt hours sold is Rocky Mountain Power, a subsidiary of PacifiCorp.
Rocky Mountain Power was formed in 2006 through the merger of Pacific Power's territory in central and eastern Wyoming with the Utah Power territory. The company serves customers in Idaho, Utah, and Wyoming, with approximately 67,000 customers in Wyoming as of 2007. Rocky Mountain Power is headquartered in Salt Lake City, Utah, and its service area covers 143,000 square miles.
As a regulated electric utility, Rocky Mountain Power is committed to providing safe, reliable, and affordable power to its customers. The company has invested in strengthening the grid and supporting those with medical equipment and other accessibility needs. Additionally, they have donated to community-serving organizations in Wyoming, fostering creativity and connections to local history.
Rocky Mountain Power's parent company, PacifiCorp, operates one of the largest privately held transmission systems in the US within the western Energy Imbalance Market. PacifiCorp owns and maintains an extensive network of transmission and distribution lines, serving over 1.8 million customers across its two business units: Pacific Power and Rocky Mountain Power.
Wyoming's energy sector is dominated by coal, which accounts for 59.61% of the state's electricity generation. However, the state has also seen a significant increase in wind power generation, which accounted for 22.76% of its electricity net generation in 2023.
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Wyoming has a regulated electricity market
Wyoming's energy sector is large, and its population is small, giving it the fourth-highest per capita energy consumption and the second-most energy-intensive state economy. The state has about 71 power plants, which is the 41st highest in the US. However, when adjusted for population, it has the fifth-most power plants per citizen. Wyoming's total emissions from electricity use are 12,526,353,043.5 kilograms of CO2, ranking as the 34th largest in the US.
The largest electricity company in Wyoming by megawatt hours sold is Rocky Mountain Power. The company also serves Utah and Idaho and is known for its community involvement and support for local organizations. Wyoming's electricity generation comes primarily from coal (59.61%), followed by wind (22.76%), and natural gas (13.30%). Wind power generation has been increasing, more than doubling since 2019 and accounting for 21% of the state's total electricity net generation in 2023.
The Wyoming Public Service Commission (PSC) regulates the public utilities that provide services to consumers in the state, including electricity, natural gas, and telephone services. The PSC ensures that these utilities provide safe and reliable services at reasonable rates. The Wyoming Rural Electric Association (WREA) is another organization that supports the efforts of electric cooperatives in the state, providing electricity to over 104,000 homes, businesses, ranches, and farms.
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The average electricity rate in Wyoming is 12.50 cents per kilowatt hour
Wyoming has a regulated electricity market, which means that customers' choices of electricity provider are limited by their geographic location. The average electricity rate in Wyoming in 2025 is 12.50 cents per kilowatt-hour, while the national average price is 16.52 cents. This makes Wyoming the 9th best-priced state in the country for electricity.
Wyoming's energy market is dominated by coal, which accounts for 59.61% of electricity generation. The state also utilises wind power (22.76%) and natural gas (13.30%). Wyoming has 71 power plants in total, which is the 41st highest amount of electricity-producing plants in the US. The state has a small population, but its large energy-producing sector makes it the second-most energy-intensive state economy, after Louisiana.
Wyoming's largest electricity company by megawatt hours sold is Rocky Mountain Power. There are 33 electricity companies operating in the state. The average electricity bill in Wyoming in 2025 is $108, while the US average is $143.
Wyoming has seen a significant increase in solar energy generation, with a 143.62% rise in the last 12 months, totalling 249,460 megawatt hours per year. However, the state does not have any initiatives to support low-income residents with installing solar panels.
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Wyoming has no Renewable Portfolio Standards
Wyoming does not have a Renewable Portfolio Standard (RPS) or any other requirements for a certain percentage of the state's electricity to be generated from renewable energy sources. RPSs are guidelines that specify a percentage of utility sales or a specific megawatt-hour (MWh) capacity to be provided by renewable resources by a specific date. While Wyoming lacks an RPS, it has added over 1,000 megawatts of renewable energy capacity since 2000, aiding other states in achieving their RPS goals.
Wyoming's large energy-producing sector and small population contribute to its high per capita energy consumption, ranking as the fourth-highest in the nation. The state has led the country in coal production since 1988, accounting for two-fifths of all coal mined in the United States. However, Wyoming's coal output has declined in recent years, coinciding with the shutdown of coal-fired power plants and a shift towards natural gas and renewable energy sources.
Despite not having an RPS, Wyoming has made significant strides in renewable energy. Wind power generation in the state has more than doubled since 2019, accounting for 21% of its total electricity net generation in 2023. Wyoming also has a substantial wind energy capacity, with over 3,100 megawatts at the end of 2023, which assists neighbouring states in meeting their RPS targets.
While Wyoming does not mandate renewable energy usage, it offers net metering for residential, commercial, and industrial customers with renewable energy generating systems smaller than 25 kilowatts. Eligible renewable systems include solar panels, wind turbines, biomass-fueled generators, and small hydroelectric generators. Net metering and feed-in tariffs in the state make solar and alternative electricity sources more economically viable.
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Carbon Power and Light is a cooperative power supplier in Wyoming
Wyoming has a regulated electricity market where customers often have a single provider for their electricity needs, based on their geographic location. The largest electricity company in Wyoming by megawatt hours sold is Rocky Mountain Power.
Carbon Power and Light, Inc. is a member-owned electric cooperative that has been serving the rural areas of Carbon and Albany Counties since 1941. It is a Touchstone Energy Cooperative and a member of both the Wyoming Rural Electric Association and the National Rural Electric Cooperative Association.
Carbon Power and Light is a not-for-profit cooperative power supplier. Its mission is to provide its member systems with a reliable, affordable, and responsible supply of electricity, adhering to cooperative principles. The company also offers Exede Satellite Internet Services and various energy-efficient water and space heating products for its members.
The Wyoming Public Service Commission (PSC) regulates the public utilities that provide services to consumers in the state. The PSC ensures that public utilities operating in Wyoming provide safe and reliable services to customers at just and reasonable rates. It regulates electricity, natural gas, telephone, some commercial water utilities, and intrastate pipelines.
Carbon Power and Light also administers the federally-funded Low-Income Energy Assistance Program (LIEAP), which helps low- and fixed-income families and individuals pay their heating bills during the winter months.
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Frequently asked questions
No, Wyoming has a regulated electricity market where consumers often have a single provider based on their geographic location.
There are 33 electricity companies operating in Wyoming.
The average residential electricity rate in Wyoming in 2025 is 12.50 cents per kilowatt-hour, while the national average is 16.52 cents.
Coal is the primary fuel source for electricity generation in Wyoming, accounting for 59.61%. Other sources include wind power (22.76%) and natural gas (13.30%).
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