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New renewables (small hydro, modern biomass, wind, solar, geothermal, and biofuels) account for another 3% and are growing very rapidly. [1] Total investment in renewable energy reached $244 billion in 2012. The top countries for investment in recent years were China, Germany, Spain, the United States, Italy, and Brazil.
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In 2023, 421.1 terawatt-hours were generated by wind power, or 10.07% of electricity in the United States. [2] The average wind turbine generates enough electricity in 46 minutes to power the average American home for one month. [3] In 2019, wind power surpassed hydroelectric power as the largest renewable energy source in the U.S. In March and ...
Offshore wind power currently has a share of about 10% of new installations. [8] Wind power is one of the lowest-cost electricity sources per unit of energy produced. In many locations, new onshore wind farms are cheaper than new coal or gas plants. [9] Regions in the higher northern and southern latitudes have the highest potential for wind ...
The power coefficient [9] C P (= P/P wind) is the dimensionless ratio of the extractable power P to the kinetic power P wind available in the undistributed stream. [ citation needed ] It has a maximum value C P max = 16/27 = 0.593 (or 59.3%; however, coefficients of performance are usually expressed as a decimal, not a percentage).
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Wind power in Illinois – has been supported by a renewable portfolio standard, passed in 2007, and strengthened in 2009, which requires 10% renewable energy from electric companies by 2010 and 25% by 2025. Wind power in Indiana – was limited to a few small water-pumping windmills on farms until 2008 with construction of Indiana's first ...
With the development of electric power, wind power found new applications in lighting buildings remote from centrally generated power. Throughout the 20th century, parallel paths developed small wind plants suitable for farms or residences and larger utility-scale wind generators that could be connected to electricity grids for remote use of power.