Wind power as an alternative energy

A wind turbine is composed of 3 propellers-like blades called a rotor. The rotor is attached to a tall tower. On average wind towers in residential settings are about 20m high. A wind turbine captures the wind to produce energy.

The first known use was in BC when people used sails to navigate the Nile River.

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Persians had already been using windmills for years by AD in order to pump water and grind grain. Windmills may have even been developed in China before 1 AD, but the earliest written documentation comes from Cretans were using "literally hundreds of sail-rotor windmills [to] pump water for crops and livestock.

As early asthey had connected the mill to "a multi-story tower, with separate floors devoted to grinding grain, removing chaff, storing grain, and on the bottom living quarters for the windsmith and his family. But perfecting the windmill's efficiency to the point that it "had all the major features recognized by modern designers as being crucial to the performance of modern wind turbine blades" took almost years.

By then, applications ranged from saw-milling timber to processing spices, tobacco, cocoa, paints, and dyes. The windmill was further refined in the late 19th century in the US; some designs from that period are still in use today. Heavy, inefficient wooden blades were replaced by lighter, faster steel blades around Over the next century, more than six million small windmills were erected in the US in order to aid in watering livestock and supplying homes with water during the development of the West.

The first large windmill to produce electricity was the "American multi-blade design," built in Its kilowatt capabilities were later superceded by modern kilowatt wind turbines.

Wind Energy Sources Today, people are realizing that wind power "is one of the most promising new energy sources" that can serve as an alternative to fossil fuel-generated electricity. By the year10 million average American homes may be supplied by wind power, preventing million metric tons of CO2 emissions every year.

Wind Turbines - Alternative Energy

Lessening our dependence on fossil fuels is critical to the health of all living things, and wind energy can do just that. The 3 billion kWh of electricity produced by America's wind machines annually displace the energy equivalent of 6. In other words, "more wind power means less smog, acid rain, and greenhouse gas emissions.

In fact, many utility services around the world offer wind-generated electricity at a premium of 2 to 3 cents per kWh. Compare this to 4. Wind energy is therefore "cheaper than any other new electric generation except natural gas. Wind generated energy is growing in leaps and bounds.

Major offshore developments are likely in northern European waters in the early part of the next century. This will be the next major step for this technology and will result in a dramatic increase in decentralized electricity generation. Offshore wind has the potential to deliver substantial quantities of energy at a price that is cheaper than most of the other renewable energies, as wind speeds are generally higher offshore than on land As ofglobal wind energy capacity topped 10, megawatts, which is approximately 16 billion kilowatt-hours of electricity.

That's enough to serve over 5 cities the size of Miamiaccording to the American Wind Energy Association. Five Miamis may not seem significant, but if we make the predicted strides in the near future, wind power could be one of our main sources of electricity.

Wind energy is therefore "cheaper than any other new electric generation except natural gas[which] emits one pound of greenhouse gases for every kilowatt-hour of electricity it generates.

Flavin, a vice president and senior energy policy analyst at the Worldwatch Institute, reported that wind generated energy is growing in leaps and bounds.

Offshore wind has the potential to deliver substantial quantities of energy at a price that is cheaper than most of the other renewable energies, as wind speeds are generally higher offshore than on land.

According to an April press release, "Worldwide, wind energy capacity has expanded at an annual rate of As far as the wind industry in the US is concerned, June of signaled the end of the best year yet.

The executive director of the American Wind Energy Association attributes this "wind rush" to "progressive state policies and growing consumer demand for 'green' low-environmental-impact power.Wind power is the fastest growing industry in the alternative energy sector.

Wind turbines generate clean and green power for us but they have certain precondition. One of it. Alternative energy is any energy source that is an alternative to fossil initiativeblog.com alternatives are intended to address concerns about fossil fuels, such as its high carbon dioxide emissions, an important factor in global warming.

Marine energy, hydroelectric, wind, geothermal and solar power are all alternative sources of energy.. The nature of . Nov 01,  · Commentary and archival information about wind power from The New York Times. Renewable energy funds can’t shutter a coal plant tomorrow, if that’s your goal, but .

Wind and Solar Data Projections from the U.S. Energy Information Administration: Past Performance and Planned Enhancements Released March 22, | tags: AEO alternative fuels forecasts/projections generating capacity renewables solar + wind. Independently published since , Home Power magazine is the premier information resource for small-scale renewable energy and energy efficiency technologies.

Through history, the use of wind power has waxed and waned,from the use of windmills in centuries past to high tech wind turbines on wind .