Wind Energy - Clean, Renewable Power Source
Wind energy is harnessed through wind turbines to generate electricity, providing a clean and renewable alternative to traditional fossil fuel-based power plants. Wind farms and turbines play a significant role in reducing environmental impact and diversifying energy sources worldwide.
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WIND ENERGY BY ERIN FINEGAN, CLODAGH MAC SHANE AND RACHEL CUNNIFFE
WHAT IS WIND ENERGY? WIND POWER OR WIND ENERGY IS THE USE OF WIND TO PROVIDE THE MECHANICAL POWER THROUGH WIND TURBINES TO TURN ELECTRIC GENERATORS AND TRADITIONALLY TO DO OTHER WORK,LIKE MILLING OR PUMPING. WIND ENERGY DOESNT POLLUTE THE AIR LIKE POWER PLANTS THAT RELY ON COMBUSTION OF FOSSIL FUELS SUCH AS COAL OR NATURAL GAS. WIND ENERGY IS CLEAN AND RENEWABLE.
WIND TURBINES WIND TURBINES ARE BIG.WIND TURBINE BLADES ARE ABOUT 184 FEET LONG,AND TURBINE TOWERS AVERAGE ALMOST 290 FEET TALL ABOUT THE HEIGHT OF THE STATUE OF LIBERTY ! THERE ARE CURRENTLY OVER 341,000 WIND TURBINES ON THE PLANET. THE LARGEST WIND TURBINE IN THE WORLD IS LOCATED IN U.S IN HAWAII.IT STANDS 20 STORIES TALL AND HAS BLADES THE LENGTH OF A FOOTBALL FIELD. LARGE GROUPS OF WIND TURBINES ARE CALLED WIND FARMS.
WIND FARMS WIND FARMS ARE LARGE GROUPS OF WIND TURBINES. THE GANSU WIND FARM IN CHINA IS THE LARGEST WIND FARM IN THE WORLD. THERE ARE 7,000 WIND TURBINES IN THE GANSU WIND FARM AND MORE ARE BEING BUILT EACH YEAR.
THE FIRST WIND TURBINE THE FIRST ELECTRICITY-GENERATING WIND TURBINE WAS INVENTED IN CLEAVELAND,OHIO BY CHARLES F. BRUSH.THE DIAMETER WAS 17 METERS IT HAD 144 BLADES MADE OF CEDAR WOOD! IT GENERATED ABOUT 12 KILOWATTS OF WIND POWER.(THATS NOT VERY MUCH)
FIRST WINDMILL WINDMILLS HAVE BEEN AROUND FOR A LONG TIME,THEY WERE FIRST USED IN PERSIA (IRAN) AS FAR BACK AS 200 B.C. PEOPLE ALSO USED THE FIRST WINDMILLS TO PROPEL BOATS ALONG THE RIVER NILE AS FAR BACK AS 5000 B.C
WHAT WAS IT USED FOR? THE FIRST WIND MILLS WERE USED TO GRIND GRAIN,DRAW UP WATER AND EVEN SAW WOOD. THE EARLIEST KNOWN WINDMILL DESIGN DATES BACK 3,000 YEARS TO ANCIENT PERSIA WHERE THEY WERE USED TO GRIND SPICES AND PUMP WATER. REEDS WERE BUNDLED TOGETHER TO CREATE VERTICAL PADDLES THAT SPUN AROUND A CENTRAL AXIS.
WIND TURBINES MAKING A DIFFERENCE IN AMERICA WIND ENERGY PROVIDES MRE THAN 10% OF TOTAL ELECTRICITY GENERATION IN 14 STATES,AND MORE THAN 30% IN KANSAS,IOWA AND OKLAHOMA. IN 1997 WIND POWER GENERATED 0.1% OF THE WORLDS ELECTRICITY,THIS INCREASED TO 1.5% IN 2008 AND 2.5% IN 2010. IN SOME COUNTRIES SUCH AS DENMARK AND PORTUGAL WIND POWER CONTRIBUTES AROUND 20% OF THE TOTAL ELECTRICITY PRODUCTION. AS OF 2009 AROUND 80 COUNTRIES USE WIND POWER TO GENERATE ELECTRICITY. THE UNITED STATES NOW PRODUCE ENOUGH WIND POWER TO LIGHT 25 MILLION HOMES!!!
