Green Technology

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  • Becoming independent in generating our own electricity is beneficial. We save a lot of money for this and we can use that extra money for other finances like emergencies. Wind energy is the safest renewable energy that you can use. It does not have any mixture of artificial components that can trigger negative reactions in humans. Another bonus is that it is just free. Many will definitely love to take risk in using wind turbines since there is no risk at all. So, no worries.
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Green Technology

  1. 1. Green Technology<br />Wind Energy<br />
  2. 2. Wind energy is pretty much self explanatory. Wind turns huge turbines that converts the energy into mechanical or electrical energy.<br />What is Wind Energy?<br />
  3. 3. There are two basic designs of wind turbines. One is the horizontal-axis, which is the kind most commonly seen.<br />The other is the vertical-axis<br />Wind Turbines and How They Work<br />This is a vertical turbine<br />This is a horizontal turbine<br />
  4. 4. Inside of a Turbine<br />
  5. 5. The towers are mostly tubes made of steel. <br />The blades are made of fiberglass-reinforced polyester or wood-epoxy.<br />Wind turbines include:<br />a rotor, or blades, which convert the wind&apos;s energy into rotational shaft energy; <br />a nacelle (enclosure) containing a drive train, usually including a gearbox and a generator<br />a tower, to support the rotor and drive train <br />Materials<br />
  6. 6. Wind turbines for land-based wind farms come in many sizes, with rotor diameters ranging from about 50 meters to about 90 meters. <br />A 90-meter tower would have a total height of approximately 135 meters (442 feet).<br />Researches are creating off shore turbines that range to 110 meters.<br />Small wind turbines intended for residential or small business use are much smaller. <br />Usually are about 40 meters total.<br />Size<br />
  7. 7. The output of a wind turbine depends on the turbine&apos;s size and the wind&apos;s speed. <br />Wind turbines being created now have power ratings ranging from 250 watts to 5 megawatts (MW).<br />Wind speed is very important in projecting turbine performance.<br />An average wind speed greater than four meters per second (m/s) (9 mph) is required for small wind electric turbines<br />Larger wind power plants require minimum average wind speeds of 6 m/s (13 mph).<br />How much Energy?<br />
  8. 8. On average a house uses about 10,655 kilowatt-hours (kWh) of electricity each year. <br />A megawatt of wind generates about as much electricity as 225 to 300 households use.<br />A megawatt is 1 million watts<br />Production<br />

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