1. Kansas Renewable Energy KDHE Geology Seminar September 05, 2013 TAKING RENEWABLE ENERGY TO HEART. Taking renewable energy to heart.

2. TAKING RENEWABLE ENERGY TO HEART. 2 US Electric Generation

3. TAKING RENEWABLE ENERGY TO HEART. 3 US Generation By Fuel Type

4. TAKING RENEWABLE ENERGY TO HEART. Westar’s Energy Centers Jeffrey Energy Center Capacity Share: 1,857 MW Fuel: Coal Lawrence Energy Center Capacity: 539 MW Fuel: Coal Tecumseh Energy Center Capacity: 242 MW Fuel: Coal Wolf Creek Generating Station Capacity Share: 548 MW Fuel: Uranium Stateline Combined Cycle Capacity Share: 200 MW Fuel: Natural Gas / Waste Heat Murray Gill EC Capacity: 317 MW Fuel: Natural Gas Gordon Evans EC Capacity: 831 MW Fuel: Natural Gas Hutchinson Energy Center Capacity: 476 MW Fuel: Natural Gas LaCygne EC Capacity Share: 681 MW Fuel: Coal Emporia Energy Center Capacity: 600 MW Fuel: Natural Gas Spring Creek EC Logan County, OK Capacity: 300 MW Fuel: Natural Gas Flat Ridge WF Capacity: 100 MW Ironwood Wind Farm Capacity: 168 MW Central Plains Wind Farm Capacity: 99 MW Meridian Way Wind Farm Capacity: 96 MW Post Rock Wind Farm Capacity: 201 MW Rolling Meadows Capacity: 6 MW Fuel: Landfill Gas

5. TAKING RENEWABLE ENERGY TO HEART. 5 Levelized Cost of New Generation

6. TAKING RENEWABLE ENERGY TO HEART. 6 US Installed Wind Capacity US Wind Power Capacities (MW) ExistingUnder construction 60,0091281 AWEA 2 nd Quarter 2013 Market Report Kansas: 2 nd in Nation for Wind Power Capability 9 th in Nation for Installed Capacity

7. TAKING RENEWABLE ENERGY TO HEART. 7 US Avg. Annual Wind Speed at 80 m

8. TAKING RENEWABLE ENERGY TO HEART. 8 Kansas Wind Projects

9. TAKING RENEWABLE ENERGY TO HEART. 9 US Solar Resource

10. TAKING RENEWABLE ENERGY TO HEART. 10 Kansas Solar Resource Map

11. TAKING RENEWABLE ENERGY TO HEART. 11 Solar in Kansas

12. TAKING RENEWABLE ENERGY TO HEART. 12 Wastewater Plant Gas Potential

13. TAKING RENEWABLE ENERGY TO HEART. 13 Manure Gas Potential

14. TAKING RENEWABLE ENERGY TO HEART. 14 Landfill Gas Potential

15. TAKING RENEWABLE ENERGY TO HEART. 15 Landfill Gas Kansas Electric Projects Rolling Meadows (5.6MW) Oak Grove Landfill (1.6MW)

16. TAKING RENEWABLE ENERGY TO HEART. 16 Crop Residue Potential

17. TAKING RENEWABLE ENERGY TO HEART. 17 Hydro Power Existing Bowersock Mills, Lawrence – 7 MW Potential Existing Corp of Engineers Dams Run of River Small Hydro Estimated to be as much as 300 MW

18. TAKING RENEWABLE ENERGY TO HEART. 18 Kansas Transmission

19. TAKING RENEWABLE ENERGY TO HEART. 19 New Kansas Transmission

20. TAKING RENEWABLE ENERGY TO HEART. 20 Westar’s Renewables  Rolling Meadows Landfill  Net Metering – 1690 kW  Meridian Way Wind Farm  Central Plains Wind Farm  Flat Ridge 1 Wind Farm  Ironwood Wind Farm  Post Rock Wind Project

21. TAKING RENEWABLE ENERGY TO HEART. 21 Rolling Meadows Landfill Location: North of Topeka Owner: Waste Management Structure: PPA on 5.6 MW’s Annual Gen: 44,000 MWh’s COD: January, 2010 Engine: Caterpillar CG-132

22. TAKING RENEWABLE ENERGY TO HEART. 22 Distributed Generation Distributed generation is on-site generation used to offset a portion or all of a customer’s electric load Typically PV and small wind 845 kW Solar 845 kW Wind 2,000 MWh’s \ year 118 kW system in Lenexa 19 kW system in Mayetta 5.2 kW system in Lawrence

23. TAKING RENEWABLE ENERGY TO HEART. 23 Meridian Way Wind Farm Location: 12,000 acres in Cloud County near Concordia Developer/Owner: Horizon Wind Energy Structure: Purchase power agreement on 96 MW’s Projected Annual Generation: Over 290,000 MWh’s Generation Began 10-23-2008 COD Attained: 12-29-2008 Turbine Type: Vestas V90 3MW Turbine Hub Height: 262 ft. Rotor Diameter: 295 ft. Location: 12,000 acres in Cloud County near Concordia Developer/Owner: Horizon Wind Energy Structure: Purchase power agreement on 96 MW’s Projected Annual Generation: Over 290,000 MWh’s Generation Began 10-23-2008 COD Attained: 12-29-2008 Turbine Type: Vestas V90 3MW Turbine Hub Height: 262 ft. Rotor Diameter: 295 ft.

24. TAKING RENEWABLE ENERGY TO HEART. 24 Central Plains Wind Farm Location: 6,000 acres in Wichita County between Leoti & Scott City Developer: RES America Development Inc. Structure: Westar Ownership of 99 MW wind farm Projected Annual Generation: Over 310,000 MWh’s In Service: March 31, 2009 Turbine type: Vestas 3MW Turbine Hub Height: 262 ft. Rotor Diameter: 295 ft.

25. TAKING RENEWABLE ENERGY TO HEART. 25 Flat Ridge 1 Wind Farm Location: 5,000 acres in Barber County near Medicine Lodge Developer: BP Alternative Energy North America Structure: PPA on 50 MW’s, Westar Owns 50 MW’s Projected Annual Generation: Over 360,000 MWh’s In Service: –Owned: Feb. 11, 2009 –PPA: Mar. 16, 2009 Turbine: Clipper 2.5 MW Turbines Height: 262 ft. Rotor Diameter: 315 ft.

26. TAKING RENEWABLE ENERGY TO HEART. 26 Ironwood Wind Farm Location: 7,450 acres in Ford County near Spearville Developer: Infinity / Duke Energy Structure: Purchase power agreement on 167.9 MW’s Projected Annual Generation: Over 700,000 MWh’s In Service: Aug. 31, 2012 Turbine: Siemens 2.3 MW Turbines Height: 262 ft. Rotor Diameter: 331 ft.

27. TAKING RENEWABLE ENERGY TO HEART. 27 Post Rock Wind Farm Location: 5,000 acres in Barber County near Medicine Lodge Developer: Wind Capital Structure: Purchase power agreement on 96 MW’s Projected Annual Generation: Over 845,000 MWh’s In Service: Oct. 4, 2012 Turbine: GE 1.5 MW Turbines Height: 262 ft. Rotor Diameter: 270 ft.

28. TAKING RENEWABLE ENERGY TO HEART. Details - Foundations Base Diameter: 55’ Pedestal Diameter: 18’ Base Height: 6’ Pedestal Height: 5’ Base Concrete per WTG: 452 cu. Yds. Pedestal Concrete per WTG: 47.1 cu. Yds. Rebar per WTG: 88277 lbs. Concrete Strength: Base: 5000 psi; Pedestal: 6000 psi Grout Strength: 12,000 psi Anchor Bolts: Number, length: 144, 11’-3” Post tension: 134 KIP Base Diameter: 55’ Pedestal Diameter: 18’ Base Height: 6’ Pedestal Height: 5’ Base Concrete per WTG: 452 cu. Yds. Pedestal Concrete per WTG: 47.1 cu. Yds. Rebar per WTG: 88277 lbs. Concrete Strength: Base: 5000 psi; Pedestal: 6000 psi Grout Strength: 12,000 psi Anchor Bolts: Number, length: 144, 11’-3” Post tension: 134 KIP

29. TAKING RENEWABLE ENERGY TO HEART. 29 Typical Foundation

30. TAKING RENEWABLE ENERGY TO HEART. 30 Cable Trenching

31. TAKING RENEWABLE ENERGY TO HEART. 31 Vestas V-90 Turbine Details Hub Height: 262’ Rotor Diameter: 295’ Blade Length: 144’–4.5” Tower Weight: 176 ton Tower Diameter: Base, Top: 11’–11.7”, 7’-6.6” Cut in wind speed: 7.8 MPH Cut out wind speed: 56 MPH Design wind speed: 22.4 MPH Extreme wind speed (10 min. avg.): 112 MPH Survival wind speed (3 sec. gust): 156 MPH Design rotor speed: 16.1 RPM Operational rotor speed: 8.6 – 18.4 RPM Generator rated speed: 1755 RPM Hub Height: 262’ Rotor Diameter: 295’ Blade Length: 144’–4.5” Tower Weight: 176 ton Tower Diameter: Base, Top: 11’–11.7”, 7’-6.6” Cut in wind speed: 7.8 MPH Cut out wind speed: 56 MPH Design wind speed: 22.4 MPH Extreme wind speed (10 min. avg.): 112 MPH Survival wind speed (3 sec. gust): 156 MPH Design rotor speed: 16.1 RPM Operational rotor speed: 8.6 – 18.4 RPM Generator rated speed: 1755 RPM

32. TAKING RENEWABLE ENERGY TO HEART. 32 Nacelle Delivery

33. TAKING RENEWABLE ENERGY TO HEART. 33 Rotor Fly

34. TAKING RENEWABLE ENERGY TO HEART. 34 Vestas V-90

35. TAKING RENEWABLE ENERGY TO HEART. 35 Ironwood Crop Duster

36. TAKING RENEWABLE ENERGY TO HEART. 36 Old and New

37. TAKING RENEWABLE ENERGY TO HEART. 37 Flat Ridge Wind Farm

38. TAKING RENEWABLE ENERGY TO HEART.