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Wind Turbines: Power for a House or City

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Wind Turbines: Power for a House or City *many s from L. Sankar * Wind energy system operations do not generate air or water emissions and do not produce ... – PowerPoint PPT presentation

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Title: Wind Turbines: Power for a House or City


1
Wind TurbinesPower for a House or City
many slides from L. Sankar
2
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Ready to Become a Significant Power Source
With annual growth rates of 30, wind could
generate 20 of nations electricity by 2020.
Installed capacity 35,000 MW as of Dec 2009
(lt1 national electricity). Source Energy
Information Agency
5
Wind is Growing Worldwide
total
end 2007
new 2008
MW
MW
Source AWEAs Global Market Report
6
Global Electricity Consumption 5,000 GW
7
U.S. Wind Power Capacity Growth is the
rollercoaster over?
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Advantages of Wind Power
  • Clean
  • Flexible
  • Large Potential for Growth
  • Economically Viable (most of the time peak
    opportunity)

13
Benefits of Wind PowerEnvironmental
  • No air pollution
  • No greenhouse gasses
  • Does not pollute water with mercury
  • No water needed for operations

14
Benefits of Wind PowerEconomic Development
  • Expanding Wind Power development brings jobs to
    rural communities
  • Increased tax revenue
  • Purchase of goods services

15
Benefits of Wind PowerFuel Diversity
  • Domestic energy source
  • Inexhaustible supply
  • Small, dispersed design reduces supply risk

16
Benefits of Wind PowerCost Stability
  • Flat-rate pricing can offer hedge against fuel
    price volatility risk (fuel is free!)
  • Electricity is inflation-proof

17
Wind Power Economics
18
Wind Power Cost of Energy Components
  • Cost (/kWh) (Capital Recovery Cost OM) /
    kWh/year
  • Capital Recovery Debt and Equity Cost
  • OM Cost Turbine design, operating environment
  • kWh/year Wind Resource

19
Construction Cost Elements
20
Cost Nosedive Driving Winds Success
21
Turbine Technology Constantly Improving
  • Larger turbines
  • Specialized blade design
  • Power electronics
  • Computer modeling produces more efficient design
  • Manufacturing improvements

22
How big is a 2.0 MW wind turbine?
This picture shows a Vestas V-80 2.0-MW wind
turbine superimposed on a Boeing 747 JUMBO JET
23
Improved Capacity Factor
  • Capacity Factors Above 35 at Good Wind Sites
  • Performance Improvements due to
  • Better siting
  • Larger turbines/energy capture
  • Technology Advances
  • Higher reliability
  • Examples Project Performance (Year 2000)
  • Big Spring, Texas
  • 37 CF in first 9 months
  • Springview, Nebraska
  • 36 CF in first 9 months

24
Offshore wind a controversialgold mine of
energy
25
CAPE WIND stay tuned
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All offshore wind farms plagued by NIMBY concerns
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