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Melinda (Cormier) Harnden Wind Energy

Melinda (Cormier) Harnden Wind Energy



This is a presentation I created for my Diversity of Life class on wind as an alternative energy source.

This is a presentation I created for my Diversity of Life class on wind as an alternative energy source.



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    Melinda (Cormier) Harnden Wind Energy Melinda (Cormier) Harnden Wind Energy Presentation Transcript

    • Wind Energy
      Alternative Energy
      Melinda Cormier
    • Wind Energy in the U.S.
      2nd Largest energy contribution last year
      Accounts for approx. 1% now…
      Experts estimate it could reach 20%
      One of the cleanest forms of energy
    • How a Basic Wind Turbine Works
      Wind spins the blades
      Blades turn the gearbox shaft
      Gearbox shaft turns the generator shaft
      Electricity is sent to converter boxes
      Changes ac to dc
      Changes dc back to ac
      ac is synchronized with grid frequency
      Transformer increase output for grid insertion
    • Disadvantages of Wind Energy
      • Cost
      • Reaching $100 millions
      • Maintenance Costs
      • Current electrical grid system
      • Designed over 100 years ago
      • Lines are too small to handle a large increase in carrying capacity
      • Government Regulations
      • Multiple companies & states
      Maple Ridge Wind Farm
      Tug Hill, NY
      Just under 200 wind turbines, estimated cost $320 million
    • Facts about Wind Energy
      • Speculation: 50% of U.S. electricity could come from North & South Dakota
      • Current grid lines are preventative
      • High voltage infrastructure needed
      • Approx. $60 billion initial costs
      • Spread out over many years and customers
      • A turbine installed in parts of Wyoming could produce more electricity than the same one in TX or NY...
      • Problem: No way to get that electricity elsewhere
    • Applications
      HEB, Inc.
      • Rock Port, MO
      20’ tall x 12’ wide
      Atop a 100’ tower
      16 mill. kW hours
    • Other Country's Wind Energy
      • Chinese Government
      • Compelling companies to purchase electricity from wind farms instead of oil and coal
      • Requires 70% of components be produced locally
      • Gamesa (2nd largest manufacturer)
      • Employs 1,000 people at Tianjin location
      • Germany – top producer
      • 20.62 mill. kW installed capacity
    • Advancements in TechnologyVertical-Axis Wind Turbines
      Big Star Wind Rotor
      • Produces 20kW of power
      • Quieter than traditional
      • More Expensive
      • 6k – 10k kW hours
      • Carbon Fiber Construction
      • 5m high by 3.1m dia.
    • A Better Wind Turbine
      Clipper Windpower – The Liberty
      Turbine Rotor Shafts
      • Advantages over traditional wind turbines
      • Four lighter generators – easier to replace
      • Patented design of gearbox
      • Less maintenance & down time
      Bull Gear for Liberty Gearbox – 65in Dia.
    • Location! Location! Location!
      High altitude capable kites with rotors
      • Turbines could produce 250x more energy than an identical one on land
      Sky WindPower
      • Flying Electric Generator (FEG’s)
    • Questions?