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Wind turbines have been used for household electric power generation in conjunction with battery storage over many decades in remote areas. [105] Examples of small-scale wind power projects in an urban setting can be found in New York City, where, since 2009, several building projects have capped their roofs with Gorlov-type helical wind turbines.
Wind turbines can be very large, reaching over 260 m (850 ft) tall with blades 110 m (360 ft) long, [120] and people have often complained about their visual impact. Environmental impact of wind power includes effect on wildlife, but can be mitigated if proper strategies are implemented. [121]
Historically, wind power was used by sails, windmills and windpumps, but today it is mostly used to generate electricity. This article deals only with wind power for electricity generation. Today, wind power is generated almost completely with wind turbines, generally grouped into wind farms and connected to the electrical grid.
When it comes to wind energy, there's a lot of hot air blowing around. Proponents and opponents alike are guilty of forming opinions without evidence, and energy analysis can often be more mystery ...
The 2011 NREL report, Large-Scale Offshore Wind Power in the United States, analyzes the current state of the offshore wind energy industry. According to the report, offshore wind resource development would help the country to achieve 20% of its electric power from wind by 2030 and to revitalize the manufacturing sector.
Wind power showed potential for replacing natural gas in electricity generation on a cost basis. By 2021 wind energy produced 4872 terawatts-hour, 2.8% of the total primary energy production [51] and 6.6% of the total electricity production. [52] Technological innovations continue to drive new developments in the application of wind power.
Airborne wind energy (AWE) is the direct use or generation of wind energy by the use of aerodynamic or aerostatic lift devices. AWE technology is able to harvest high altitude winds, in contrast to wind turbines, which use a rotor mounted on a tower. The term high-altitude wind power (HAWP) has been used to refer to AWE systems. [1]
An aerostat-type wind power system relies at least in part on buoyancy to support the wind-collecting elements. Aerostats vary in their designs and resulting lift-to-drag ratio; the kiting effect of higher lift-over-drag shapes for the aerostat can effectively keep an airborne turbine aloft; a variety of such kiting balloons were made famous in the kytoon by Domina Jalbert.