The Texas Interconnection is an alternating current (AC) power grid – a wide area synchronous grid – that covers most of the state of Texas. The grid is managed by the Electric Reliability Council of Texas (ERCOT).
Wind power is a branch of the energy industry that has expanded quickly in the United States over the last several years. From January through December 2022, 434.8 terawatt-hours were generated by wind power, or 10.25% of electricity in the United States. The average wind turbine generates enough electricity in 46 minutes to power the average American home for one month. In 2019, wind power surpassed hydroelectric power as the largest renewable energy source in the U.S.
Wind power in California had initiative and early development during Governor Jerry Brown's first two terms in the late 1970s and early 1980s. The state's wind power capacity has grown by nearly 350% since 2001, when it was less than 1,700 MW. In 2016, wind energy supplied about 6.9% of California's total electricity needs, or enough to power more than 1.3 million households. Most of California's wind generation is found in the Tehachapi area of Kern County, California, with some large projects in Solano, Contra Costa and Riverside counties as well. California is among the states with the largest amount of installed wind power capacity. In recent years, California has lagged behind other states when it comes to the installation of wind power. It was ranked 4th overall for wind power electrical generation at the end of 2016 behind Texas, Iowa, and Oklahoma. As of 2019, California had 5,973 megawatts (MW) of wind power generating capacity installed.
Making up over 62% of the state's generated electricity in 2022, wind power is the largest source of electricity generation in Iowa. In 2020, over 34 billion kWh of electrical energy was generated by wind power. As of 2022, Iowa has over 12,200 megawatts (MW) of installed capacity with over 6,000 wind turbines, ranking 2nd and 3rd in the nation below Texas respectively.
The U.S. state of Oregon has large wind energy resources. Many projects have been completed, most of them in rural Eastern Oregon and near the Columbia River Gorge. Wind power accounted for 12.1% of the electricity generated in Oregon in 2016.
At the end of 2015, the installed capacity of wind power in Washington was 3,075 megawatts (MW) with wind power accounting for 7,101 GWh. In 2016, it reached a generation of 8,041 GWh, comprising 7.1% of the electricity generated in the state. In 2023, it had a capacity of 3,407 MW, responsible for 7.75% of generation.
Wyoming has one of the highest wind power potentials of any state in the United States. In 2019, Wyoming had wind powered electricity generating capacity of 1,589 MW, which produced 9.85% of its electric generation, with an additional 3,753 MW under construction. However, the wind generation in that year was Wyoming's third-lowest in the 2010s. By 2020, wind capacity increased to 2738 MW and 8448 gigawatt-hours of electricity were produced from wind in 2021, more than double 2019 production. Additional wind capacity and needed transmission lines are under construction or planned, despite political headwinds from Wyoming's strong coal and oil sectors.
New York has 2,192 MW of installed wind power capacity as of 2022. Most of New York's wind power is located in upstate New York as onshore wind farms. New York has set a goal of developing 9,000 MW of offshore installed wind power capacity by 2035 that will power an estimated 6 million homes. As of October 2022, New York has five offshore wind farms in development with approximately 4,300 MW installed capacity.
The Capricorn Ridge Wind Farm is located in Sterling and Coke counties, Texas. The wind farm does not create any air and water pollution to the surrounding counties. It is a 662.5 MW wind farm, with 342 GE 1.5 MW wind turbines and 65 2.3 MW Siemens turbines that are capable of generating enough electricity for more than 220,000 homes. With all four phases combined, there should be over 400 turbines after the project commissioned in 2007. The wind farm is built, owned and operated by a subsidiary of NextEra Energy Resources, the U.S.' largest wind energy generator who is also known for generating electricity using natural gas, oil solar, wind and nuclear. This company, together with its subsidiaries owns, operates, develops, constructs and manages electricity and energy generating facilities in not only the U.S. but also in Canada and Spain. The project is part owned by San Antonio-based Sullivan Trillian Fund Private Equity. Its property Offtaker is Energy Market- ERCOT.
Wind power in Illinois provided nearly 10% of the state's generated electrical power in 2020 powering 1,231,900 homes. At the end of 2020, Illinois had 6,300 megawatts (MW) of wind power installed, ranking fifth among states for installed wind turbine capacity. An additional 1,100 MW of wind power was under construction across the state at the end of 2020.
Wind power in Indiana was limited to a few small water-pumping windmills on farms until 2008 with construction of Indiana's first utility-scale wind power facility, Goodland with a nameplate capacity of 130 MW. As of September 2017, Indiana had a total of 1897 MW of wind power capacity installed, ranking it 12th among U.S. states. Wind power was responsible for 4.8% of in-state electricity production in 2016.
In 2016, Arizona had 268 megawatts (MW) of wind powered electricity generating capacity, producing 0.5% of in-state generated electricity.
The US state of Colorado has vast wind energy resources and the installed electricity capacity and generation from wind power in Colorado has been growing significantly in recent years. The growth has been sustained due to a combination of falling costs, continuing federal incentives, and the state's aggressive renewable portfolio standard that requires 30% of the state's electricity to come from renewable sources by 2020.
Modern United States wind energy policy coincided with the beginning of modern wind industry of the United States, which began in the early 1980s with the arrival of utility-scale wind turbines in California at the Altamont Pass wind farm. Since then, the industry has had to endure the financial uncertainties caused by a highly fluctuating tax incentive program. Because these early wind projects were fueled by investment tax credits based on installation rather than performance, they were plagued with issues of low productivity and equipment reliability. Those investment tax credits expired in 1986, which forced investors to focus on improving the reliability and efficiency of their turbines. The 1990s saw rise to a new type of tax credit, the production tax credit, which propelled technological improvements to the wind turbine even further by encouraging investors to focus on electricity output rather than installation.
Wind power in Michigan is a developing industry. The industrial base from the automotive industry has led to a number of companies producing wind turbine parts in the state. The development of wind farms in the state, however, has lagged behind. In January 2021, there were a total of 1,481 wind turbines in the state with a nameplate capacity of 2,549 MW. The nameplate total exceeded 2,000 MW when Pine River came online in March 2019. Wind provided 4.2% of the state's electricity in 2016.
The state of South Dakota is a leader in the U.S. in wind power generation with over 30% of the state's electricity generation coming from wind in 2017. In 2016, South Dakota had 583 turbines with a total capacity of 977 megawatts (MW) of wind generation capacity. In 2019, the capacity increased to 1525 MW.
The U.S. State of Oklahoma has high potential capacity for wind power in the western half of the state. In 2021, Oklahoma's installed wind generation capacity was almost 10,500 megawatts, supplying over 40% of the state's generated electricity and 85% of Oklahoma's total generating capacity from all renewable resources.
Wind power in Tennessee has most potential in East Tennessee along the North Carolina border. The state has not passed renewable portfolio standard legislation and there is just one utility-scale wind farm with 15 operating turbines and previously 3 test turbines. The Tennessee Valley Authority (TVA), based in Knoxville, imports wind-generated electricity into its service area which includes Tennessee. US Senator Lamar Alexander from Tennessee is an outspoken critic of wind power.
Wind power in Nebraska remains largely untapped in comparison with its potential. In the Great Plains, with more than 47,000 farms and open skies it ranks near the top in the United States in its ability to generate energy from wind. As of 2015, the state had not adopted a renewable portfolio standard. Omaha Public Power District (OPPD) is one of the state's largest purchasers of wind energy.
Energy is a major component of the economy of Texas. The state is the nation's largest energy producer, producing twice as much energy as Florida, the state with the second-highest production. It is also the national leader in wind power generation, comprising about 28% of national wind powered electrical production in 2019. Wind power surpassed nuclear power production in the state in 2014. Since 2003, Texas state officials have created various initiatives like the Texas Enterprise Fund and the Texas Emerging Technology Fund to develop the economy of Texas.
