(Bloomberg) Wind power is making a comeback. One of the earliest energy sources to be harnessed by mankind has now overtaken coal-fired generation in Europe and hydroelectric dams in the U.S.

Europes wind industry was aided by increasing investments in offshore projects, while developers added thousands of new turbines on the breezy plains of Texas, Oklahoma and Kansas, according to a pair of reports released Thursday by the industrys main trade groups in the two regions.

Were on a steady course to double wind energys contribution to U.S. electricity with $60 billion in investments, Tom Kiernan, chief executive officer of the American Wind Energy Association, said in an interview Wednesday. He expects wind turbines will supply 10%of U.S. electricity in a few years, up from about 5 percent last year.

With more than 8.2 gigawatts installed in 2016, the U.S. wind industry has supplanted big hydroelectric dams as the countrys largest single renewable energy source, AWEA said Thursday. Hydropower has dominated the nations renewable generation since before the Hoover Dam was completed in 1936.

Oklahoma installed 1.2 gigawatts of wind turbines last quarter, beating out California to become the third-biggest market in the U.S. And Kansas surpassed Illinois for fifth place behind the top two producers, Texas and Iowa, according to data from the Washington-based trade group.

Rising demand for wind turbines has helped lift shares of U.S. tower and blade manufacturers. Broadwind Energy Inc. gained 3.3 percent to a five-month high of $4.77 at the close in New York. The Cicero, Illinois-based maker of steel towers has more than doubled in the past year. TPI Composites Inc., a maker of fiberglass blades, gained 2% in New York Thursday.

European wind grew 8% last year, to 153.7 gigawatts, comprising 16.7% of the regions total installed capacity. That was more than any other technology, driving wind past coal as the continents second-biggest type of generation, according to figures published Thursday by the WindEurope trade group. Gas-fired generation remains the biggest source of power.

With countries seeking to curb greenhouse gas emissions that causes climate change by replacing fossil fuel plants with new forms of renewable energy, investment in wind grew to a record 27.5 billion euros ($29.3 billion) in 2016, WindEuropes annual European Statistics report showed.

The group said 10.4 gigawatts of wind energy are under construction and another 7.9 gigawatts are in advanced development.

While winds installed capacity beats coal in Europe and hydropower in the U.S, it doesnt yet produce as much energy because its not always blowing.

Wind and coal are on two ends of the spectrum, Oliver Joy, a spokesman for WindEurope, said in an e-mail.

Wind is steadily adding new capacity while coal is decommissioning far more than any technology in Europe.

Bloomberg News by Christopher Martin and Jessica Shankleman

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Offshore projects help raise profile of wind power in US, Europe - WorkBoat (blog)