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Welcome

Welcome. Desert Sky Wind Farm Pecos County, Texas. Wind Power’s Place. Important part of mix Free fuel No emissions management Maturing technology Cost competitive Predictable at proven sites Low risk at proven sites Fastest growing source Future looks bright.

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Welcome

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  1. Welcome Desert Sky Wind Farm Pecos County, Texas

  2. Wind Power’s Place • Important part of mix • Free fuel • No emissions management • Maturing technology • Cost competitive • Predictable at proven sites • Low risk at proven sites • Fastest growing source • Future looks bright

  3. 1,687 Megawatts (MW) added in 2003 204 MW in Texas 410 MW added in 2002 1,696 MW added in 2001 915 MW in Texas 28% average annual expansion in U.S. capacity over the last five years Total installed capacity: U.S. - 6,374 MW in 32 states Texas – 1,293 MW Texas ranks 2nd in U.S. Source: American Wind Energy Association Wind Growth in U.S., Texas

  4. Competitive cost Long-term price stability Environmental attributes Federal wind tax credit equaling 1.7 cents per KWH Texas Senate Bill 7 (electric industry restructuring) Rural development Ease of permitting Wind Industry Drivers

  5. Senate Bill 7 Details • Senate Bill 7 (1999 electric restructuring legislation) included renewable portfolio standard (RPS) • Requires additional 2,000 megawatts (MW) of capacity in state of Texas by Jan. 1, 2009 (beyond 880 MW installed at the time) • Under SB7, cumulative installed renewable capacity in Texas must grow to: • 1,280 MW (an additional 400 MW) by Jan. 1, 2003 • 1,730 MW (an additional 450 MW) by Jan. 1, 2005 • 2,280 MW (an additional 550 MW) by Jan. 1, 2007 • 2,880 MW (an additional 600 MW) by Jan. 1, 2009 • 2,880 MW equates to about 3% of TX electricity in 2009 • Installed wind capacity in TX as of Jan. 1, 2004 was 1,293 MW

  6. Texas Wind Projects vs. Load Centers Dallas- Ft. Worth Austin Houston San Antonio Corpus Christi Rio Grande Valley

  7. Wind Energy Potential In Billions of KWH

  8. Declining Cost of Wind Does not include Federal wind tax credit; reduces cost 1 cent / kWh or $10 / mWh $’s Per MWH

  9. Utility Interest in Wind Energy • Rapidly declining cost • Rapidly growing industry • Adds to fuel source diversity • Environmental benefits • High levels of public support • Legislative or regulatory mandates • Abundant resources in U.S.

  10. Wind Site Considerations • Willing landowners and public • Windy site • 1-5 years of data • Mesa • Few trees • Lots of land -- rural • Environmental studies • Endangered species • Avoid bird flyways • Archaeology studies • Transmission network

  11. Desert Sky Wind Farm GE Wind Energy built project; performs O&M AEP owns facility CPS buying power

  12. Desert Sky Details • 160 megawatts – 107 turbines at 1.5 MW each • Located on Indian Mesa near Iraan and Bakersfield, TX • Project covers 15 sq. miles • Enron Wind (now GE Wind Energy) developed and constructed the project; now performing O&M • AEP purchased project after completion in 2001 -- $175 million investment • Power is sold to City Public Service of San Antonio under long-term power supply agreements

  13. GE Wind Energy 1.5 -- Operation • Operates in 8-56 MPH wind • Onboard weather station • Electronically controlled • Yaw control facing wind • Variable speed via blade pitch • Operates at 11-20 RPM • Desert Sky a 107-unit power plant (each turbine is self-contained unit)

  14. Tower and Turbine Profile • GE Wind Energy 1.5 turbines • Each rated at 1.5 megawatts (1,500 kilowatts) • 328 ft. base to blade tip • Foundation 18 to 26 ft. deep • Tower in three sections • 163.3 tons total

  15. 231 ft. 211 ft. Wide Sweep of Turbine Blades • Each blade 112 ft. long • 231 ft. blade tip to tip • Span greater than 747 airliner

  16. Workers Blade 112’ long Nacelle 56 tons Tower 3 sections Wind Turbine Units

  17. Nacelle • Nacelle (nuh-cell) shown before assembly • Houses generator and gearbox • Resembles large travel trailer • Weighs 56 tons

  18. Inside Nacelle

  19. Dallas, 400 Miles San Antonio, 266 Miles Odessa, 90 Miles Desert Sky Map • Ft. Stockton, 50 miles • McCamey, 20 Miles • Iraan, 12 Miles Desert Sky

  20. More Information • AWEA.ORG • American Wind Energy Association • AEP.COM • American Electric Power • CITYPUBLICSERVICE.COM • City Public Service, San Antonio • GEWIND.COM • GE Wind Energy • DESERTSKYWIND.COM • Desert Sky Wind Farm

  21. Thank You!

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