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Wind Energy Overview: Potential, Function, and Economics in Texas

Explore wind turbine function, power generation, small wind systems, Texas potential, and economic analysis of wind energy on large scales in this comprehensive review. Learn about costs, benefits, and environmental impact of wind power.

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Wind Energy Overview: Potential, Function, and Economics in Texas

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  1. Wind Energy Presented by Jerad Naymick & Selvam Arjunan Fall 2006 Department of Chemical Engineering, The University of Texas at Austin http://www.tva.gov/news/files/buffmtn/turbines3.jpg

  2. Overview • Technical background • Small wind systems • Potential in Texas • Large scale economics

  3. How does a wind turbine function? Wind Kinetic energy to mechanical energy Mechanical energy to electrical energy http://www.solarnavigator.net/wind_turbines/turbine_drawing.jpg

  4. Power from a Wind Turbine P = ½CpρAV3 Where P = captured power Cp = max power coefficient, generally 0.25 to 0.45 (Betz limit = 0.59) ρ = air density A = rotor swept area V = wind speed

  5. http://www.eere.energy.gov/windandhydro/windpoweringamerica/pdfs/small_wind/small_wind_guide.pdfhttp://www.eere.energy.gov/windandhydro/windpoweringamerica/pdfs/small_wind/small_wind_guide.pdf

  6. Small Wind Electric Systems • Is wind energy a practical solution? • What power should the wind turbine produce? • Which tower type is best? • How much do wind turbines cost? • Is grid connection an option? http://www.eere.energy.gov/windandhydro/windpoweringamerica/pdfs/small_wind/small_wind_guide.pdf

  7. Wind Potential in Texas Improving technology will further increase the potential capacity! http://www.infinitepower.org/reswind.htm

  8. Large Scale Economic Analysis • Financing Costs • Opportunity Costs • Operating Costs • Externalities http://www.personal.psu.edu/users/m/c/mcc171/dollar.jpg

  9. Opportunity Costs • 2% of time needed for maintenance • Inability to achieve Betz limit http://www.energyadvocate.com/fw91.htm http://www.ftexploring.com/energy/wind-enrgy.html

  10. Operating Costs • Wind is free, where available • Economies of scale http://en.wikipedia.org/wiki/Image:US_wind_power_map.png

  11. Financing Costs • Conventional energies are better off than renewable energies • Utility versus private developer • Risk affects interest rate, and thus cost • Variability in wind • PTC renewals • REPI not guaranteed • Industry lacks stability www.awea.org/pubs/documents/Outlook_2006.pdf

  12. Externalities • Environmental • Zero emissions! • Minimal noise pollution • Bird fatalities • No Hidden Subsidies • Medical • Military www.awea.org/pubs/documents/Outlook_2006.pdf

  13. Questions? http://shiftingbaselines.org/blog/wind_turbines_300.jpg

  14. References • Comparitive Cost of wind and Other Energy Sources. Wind Energy Fact Sheet. American Wind Energy Association. 19 Nov. 2006 <http://www.awea.org/‌pubs/‌factsheets/‌Cost2001.PDF>. • “Cost FAQ.” American Wind Energy Association. 19 Nov. 2006 <http://www.awea.org/‌faq/‌cost.html>. • Economics of Wind Energy. Mar. 2002. American Wind Energy Association. 17 Nov. 2006 <http://www.awea.org/‌pubs/‌factsheets/‌EconomicsofWind-March2002.pdf>. • Economics of Wind Energy. Endless Energy Corporation. 19 Nov. 2006 <http://www.endlessenergy.com/‌windenergy.shtml>. • “Frequently Asked Questions.” Horizon Wind Energy for Landowners. 2005. 19 Nov. 2006 <http://www.horizonwind.com/‌about/‌landowners/‌faq.aspx>. • “How Does a Wind Turbine Work?” National Wind Technology Center. 19 Nov. 2006 <http://www.nrel.gov/‌wind/‌animation.html>. • Small Wind Electric Systems. Energy Efficiency and Renewable Energy. U.S. Department of Energy. 19 Nov. 2006 <http://www.eere.energy.gov/‌windandhydro/‌windpoweringamerica/‌pdfs/‌small_wind/‌small_wind_guide.pdf>. • “Texas Wind Energy Development.” Wind Project Database. American Wind Energy Association. 16 Nov. 2006 <http://www.awea.org/‌projects/‌texas.html>. • Texas Wind Energy Resources. Texas State Energy Conservation Office. 19 Nov. 2006 <http://www.infinitepower.org/‌reswind.htm>. • Variability of Wind Power and Other Renewables: Management Options and Strategies. 2005. American Wind Energy Association. June 2005. International Energy Association. 19 Nov. 2006 <http://awea.org/‌policy/‌regulatory_policy/‌transmission_documents/‌IEA_report_variability_wind.pdf>. • Wind Energy Applications Guide. American Wind Energy Association. 16 Nov. 2006 <http://www.awea.org/‌pubs/‌documents/‌appguideformatWeb.pdf>. • Wind Energy for Rural Economic Development. National Renewable Energy Laboratory. 18 Nov. 2006 <http://www.nrel.gov/‌docs/‌fy04osti/‌33590.pdf>. • “Windmill Efficiency.” The Energy Advocate. 2001. 17 Nov. 2006 <http://www.energyadvocate.com/‌fw91.htm>. • Wind Power Myths vs. Facts. American Wind Energy Association. 18 Nov. 2006 <http://www.awea.org/‌pubs/‌factsheets/‌050629_Myths_vs_Facts_Fact_Sheet.pdf>. • Wind Power Outlook 2006. American Wind Energy Association. 17 Nov. 2006 <http://www.awea.org/‌pubs/‌documents/‌Outlook_2006.pdf>. • “Wind Turbines and the Energy in the Wind.” Energy Exploration. 2005. FT Exploring Science and Technology. 19 Nov. 2006 <http://www.ftexploring.com/‌energy/‌wind-enrgy.html>.

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