Wind power is used most heavily across the Great Plains and parts of the Midwest, with Texas far ahead of every other state. Texas alone has more installed wind capacity than most countries, generating roughly a quarter of the electricity on its grid from wind. Iowa, Oklahoma, Kansas, and Illinois round out the top five, and several of these states get an even larger share of their electricity from wind than Texas does despite having fewer total turbines.
Texas Leads by a Wide Margin
Texas has over 40 gigawatts of installed wind capacity, more than double that of any other state. Wind supplies about 25.8% of the electricity delivered through the state’s main power grid, known as ERCOT. That grid operates largely independent of the rest of the country, which means Texas both produces and consumes most of its wind power internally. The western half of the state, particularly the area around the Permian Basin and the Texas Panhandle, hosts the densest concentration of wind farms in the country thanks to strong, consistent winds and vast stretches of open land.
At that level of wind penetration, Texas is approaching the practical limits of how much wind its grid can absorb without major upgrades to transmission lines and energy storage. Curtailment, where turbines are told to stop producing because the grid can’t handle the output, already happens during high-wind, low-demand periods. This is one reason battery storage projects are expanding rapidly in the state alongside new wind installations.
The Great Plains Wind Belt
The central corridor of the United States, stretching from North Dakota down through Texas, is often called the Wind Belt. This region benefits from geography: flat terrain with few trees or tall structures to slow wind speeds, plus consistent airflow patterns driven by the jet stream and temperature contrasts between the Rocky Mountains and the plains. States in this corridor consistently rank at the top for both total wind capacity and wind’s share of electricity generation.
Iowa typically generates over 60% of its electricity from wind, the highest percentage of any state. Kansas and Oklahoma both produce more than 40% of their electricity from wind. South Dakota and North Dakota are in a similar range. These states have relatively small populations and modest total electricity demand, so even a moderate number of wind farms can supply a large fraction of the grid. Many also export surplus wind power to neighboring states through regional transmission networks.
Top States by Total Capacity
After Texas, the states with the most installed wind capacity include:
- Iowa: Roughly 12 to 13 gigawatts of capacity, with wind as the single largest source of electricity in the state.
- Oklahoma: Around 11 gigawatts, concentrated in the western half of the state where winds are strongest.
- Kansas: Approximately 8 gigawatts, with most farms in the central and western counties.
- Illinois: About 7 gigawatts, mostly across the flat agricultural regions of central and northern Illinois.
- Colorado, Indiana, and Minnesota: Each in the 4 to 5 gigawatt range, contributing meaningfully to their respective grids.
States Where Wind Powers the Most Electricity
Total capacity and percentage of electricity are two different things, and it helps to understand both. Texas has the most turbines, but Iowa, Kansas, Oklahoma, South Dakota, and North Dakota rely on wind for a larger share of their power. Iowa’s figure above 60% is especially notable because it means wind is the backbone of the state’s electricity supply, not a supplement.
This distinction matters if you’re thinking about where wind has the deepest economic roots. In states like Kansas and Iowa, wind energy lease payments to farmers and ranchers represent a significant income stream for rural communities. Turbines sit on agricultural land that continues to be farmed around the base of each tower, making wind a dual-use proposition that’s popular with landowners.
Coastal and Offshore Wind
Most U.S. wind power comes from onshore farms, but offshore wind is growing along the Atlantic coast. The first commercial offshore wind farm opened near Block Island, Rhode Island, and larger projects are under construction or in development off the coasts of New York, New Jersey, Massachusetts, and Virginia. Offshore wind speeds tend to be stronger and more consistent than onshore, but the cost of building and maintaining turbines in the ocean is significantly higher.
Offshore wind currently represents a tiny fraction of total U.S. wind capacity, but several projects in the pipeline could add multiple gigawatts over the next decade. These installations serve densely populated coastal states that lack the open land for large onshore wind farms but have high electricity demand.
Why Wind Capacity Is Growing Unevenly
Wind capacity additions across the country hit record levels in 2020 and 2021, with more than 14 gigawatts added in each of those years. The pace slowed after that, but projections for 2026 show 11.8 gigawatts of planned additions, more than double the capacity added the prior year. Where those new turbines go depends on a combination of wind resources, land availability, state policies, and grid infrastructure.
States with renewable energy mandates or tax incentives tend to attract more wind development. Transmission capacity is another bottleneck: some of the windiest areas in the country, particularly in Wyoming and Montana, have limited power lines connecting them to major population centers. Building those lines takes years of permitting and billions of dollars, so wind development often clusters in areas where the grid already has room.
Grid congestion also explains why some Midwestern states export large amounts of wind power while others struggle to use what they produce. The Southwest Power Pool, which coordinates the grid across much of the central plains, regularly sees wind generation exceed 70% of total demand during windy spring nights. Managing those surpluses without large-scale storage remains one of the key challenges for expanding wind power further in the regions that already use it most.