Where Wyoming Gets Its Electricity
Net generation by source · 12-month average, June 2025 – May 2026.
Generation mix
| Source | Share | Generation |
|---|---|---|
| Natural gas | 10.6% | 4,676 GWh |
| Coal | 54.1% | 23,952 GWh |
| Nuclear | 0.0% | 0 GWh |
| Wind | 30.4% | 13,443 GWh |
| Solar | 1.1% | 487 GWh |
| Hydro | 2.8% | 1,220 GWh |
| Other | 1.1% | 476 GWh |
44.3 TWh generated over the 12 months to May 2026. Shares are of net generation within Wyoming, which is not the same as what the state consumes — power crosses state lines.
Counting rooftop solar
EIA reports small-scale solar — mostly rooftop panels on homes and businesses — separately, and leaves it out of the state generation total that the mix above is a share of. Wyoming generated 44 GWh that way. Counting it on both sides of the ratio takes solar from 1.1% to 1.2%.
How the mix has shifted since 2016
| Source | 2016 | 2025 | Change |
|---|---|---|---|
| Natural gas | 1.7% | 9.9% | +8.3 pts |
| Coal | 85.8% | 58.5% | −27.3 pts |
| Nuclear | 0.0% | 0.0% | — |
| Wind | 9.4% | 27.1% | +17.7 pts |
| Solar | 0.0% | 1.1% | +1.1 pts |
| Hydro | 2.1% | 2.1% | +0.1 pts |
| Other | 1.0% | 1.3% | +0.3 pts |
Compared with the U.S. and nearby states
Wyoming's generation mix in context
Coal supplies 54.1% of Wyoming's electricity generation, making it by far the state's largest source. Wind ranks second at 30.4%, followed by gas at 10.6%, hydro at 2.8%, and solar at 1.1% on a utility-scale basis (1.2% when rooftop solar is included). Renewable electricity accounts for 34.2% of the state's generation, ranking it 17th among the 51 states and DC with generation data, while solar alone ranks 42nd.
Over the decade from 2016 to 2025, Wyoming's electricity mix underwent a dramatic shift. Coal fell from 85.8% in 2016 to 58.5% in 2025, a decline of 27.3 percentage points. Wind surged from 9.4% to 27.1%, gaining 17.7 points, while gas climbed from 1.7% to 9.9%. The renewable share expanded from 11.5% to 30.3%, an increase of 18.8 points, though solar remained marginal at 1.1% in 2025.
Wyoming's generation mix differs sharply from the national pattern. Coal supplies 38.3 percentage points more of Wyoming's electricity than the nation's average, while gas provides 30.2 points less. The state's renewable share of 34.2% exceeds the national 24.9%, yet Wyoming still lags most of its neighbours. Four of the six bordering states—South Dakota, Idaho, Montana, and Colorado—have higher renewable shares; only Nebraska and Utah fall below Wyoming's figure.
Written from the EIA figures on this page, covering data through May 2026.
Frequently asked questions
›What percentage of Wyoming's electricity comes from renewable energy?
›What percentage of Wyoming's power comes from solar?
›Where does Wyoming get most of its electricity?
›Does Wyoming still burn coal for electricity?
›Is Wyoming getting greener?
How this is measured
Figures are net generation reported to the U.S. Energy Information Administration for all sectors — utilities, independent power producers, and industrial and commercial plants that generate their own power. Shares are of the 12 months to May 2026, rather than a single month, because generation is strongly seasonal: solar peaks in summer and hydro with the spring melt, so one month says more about the weather than about the grid.
“Other” is the reported total minus the six named sources, so the shares add to exactly 100%. It holds geothermal, biomass, petroleum, other gases, and pumped storage — the last of which consumes more electricity than it returns, and so can be negative. Geothermal and biomass are renewable, which is why the renewable share above is slightly larger than wind, solar and hydro added together.
This is generation, not consumption. Electricity crosses state lines freely, so a state can generate more than it uses or rely on imports for a large part of its supply; neither shows up here.