The US Added More New Energy Capacity From Wind Than Any Other Source Last Year

Last year, 42% of new electricity generation capacity in the U.S. came from land-based wind energy -- more than from any other source -- according to numbers in a series of reports from the Department of Energy (DOE) this week. By contrast, solar amounted to only 38% of new capacity last year. CNBC reports: While both capacity and electricity generation from wind can vary regionally, land-based wind is now a strong, intermittent energy source across the U.S. According to research by DOE's Lawrence Berkeley National Laboratory, a record 16,836 megawatts of new utility-scale land-based wind power capacity was added to U.S. energy infrastructure in 2020, representing about $24.6 billion of investment in new wind power. Last year, the DOE noted, wind energy was able to provide more than half of in-state electricity generation and sales in a few states. Iowa led the pack with wind power providing 57% of its in-state electricity generation. However, Iowa has a lot of wind turbines, and not a very big population.

The growth of land-based wind energy in the U.S. last year was driven partly by production tax credits that are poised for a phaseout, encouraging development before that event horizon. Wind technology improvements also helped encourage land-based wind development. Compared to older wind turbines, the latest models feature taller towers with longer blades that can produce more energy by reaching into higher winds. In addition to land-based wind farms, myriad off-shore wind developments are underway domestically. But last year, off-shore wind farms still weren't operational across most of the U.S. The DOE's 2021 Offshore Wind Market Report instead focuses on the 'pipeline' of offshore initiatives. In 2020, the offshore pipeline 'grew to a potential generating capacity of 35,324 megawatts (MW),' a 24% increase from the prior year, that report says.

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