5. Wind has provided 35% of all new electric generating capacity in America since 2007 Data Source: AWEA, EIA, SEIA, SNL Nearly 81,000 MW of new generating capacity installed between 2007 and 2010 Wind installed over 35% of all new generating capacity between 2007 and 2010, or 28,740 MW. Percent of New Installed Capacity, 2007-2010 6

6. With 400 Facilities, Wind is One of the Fastest- Growing Sources of U.S. Manufacturing Jobs Source: AWEA, U.S. Wind Industry Annual Market Report Year Ending 2010 9

7. American Wind is Affordable and cost-competitive with all other new electric generation sources Source: Lazard, Levelized Cost of Energy, June 2009 7

8. Turbine Productivity Up, Costs Down Source: AWEA, U.S. Wind Industry Annual Market Report Year Ending 2010 Turbines’ availability to make power is usually above 98% Taller towers and better siting let wind farms operate from the high 30% to low 40% range of capacity year-round A turbine with a nameplate capacity seven times larger can make 15 times more power 8

9. Onshore & Offshore Wind Could Electrify U.S. 13 Times Over Source: NREL and AWS Truepower 4

10. U.S. Wind Power Installations are Ahead of Projected Path for 20% by 2030 Data Source: AWEA, U.S. DOE 20% Wind Energy by 2030 Cumulative Wind Capacity (GW) 11

11. Wind Power Uses Virtually No Water 20% wind saves 4 trillion gallons of water through 2030 20% wind cuts electric sector water consumption by 17% in 2030 Source: U.S. DOE, 20% Wind Energy by 2030, 2008 10

12. Wind Power: America’s Choice Source: March 2010 survey by Public Opinion Strategies and Bennett, Petts & Normington 5

13. Coal Market Share, Drop Since 2003 - 6.0 percentage pts Renewable Market Share, Increase Since 2003 + 2.0 percentage pts Natural Gas Market Share Increase Since 2003 + 7.0 percentage pts Source: EIA, Net Generation All sectors *All Renewables does not include hydro U.S. Energy Policy Needs to Support Diversity 12

14. Proven track record: States’ Renewable Portfolio Standards have created a market for wind, with over 90% of the renewable energy build in states with RPS programs or goals. Portfolio Approach: State & Regional Leadership 14

15. Iowa’s Incredible Wind Resource Wind resource ranks 7 th in U.S. Wind could provide over 44 times the state’s current electricity needs Source: National Renewable Electricity Laboratory 15

16. Iowa: National Leader in Wind Installations Iowa wind farms now online power the equivalent of more than 900,000 homes Source: American Wind Energy Association 16

17. Mandatory RES Voluntary standard or goal Iowa Led in State Renewable Electricity Standards 18

18. Iowa: Case Study of Leadership in Growing Wind Generation and Manufacturing Iowa not only has the greatest percentage of electricity generated from wind – 3,675 MW, approaching 20% of the state’s electricity – it’s also a leading state in attracting manufacturing. 17

19. Significant Economic and Environmental Benefits Iowa’s wind industry has generated: Support for 5,000-10,000 total direct and indirect jobs $16.5 million in annual property tax payments by wind project owners $11 million in annual land lease payments Avoids over 6.2 million metric tons of carbon dioxide 19

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23. Attend one of the fastest-growing U.S. tradeshows: WINDPOWER 2012 Conference & Exhibition Atlanta, GA | June 3-6, 2012 See www.awea.org for more information and events – covering wind farm siting, transmission, offshore wind, small and community wind, the supply chain, education, operations, and investment. Remember to sign up to get updates and chances to take action at www.powerofwind.com Attend one of the fastest-growing U.S. tradeshows 21