Westar & Renewable Energy BOC Nov. 7, 2014 TAKING RENEWABLE ENERGY TO HEART

TAKING RENEWABLE ENERGY TO HEART 2 US Electric Usage

TAKING RENEWABLE ENERGY TO HEART 3 US Installed Generation

Renewable Energy TAKING RENEWABLE ENERGY TO HEART 4

TAKING RENEWABLE ENERGY TO HEART 5 Westar Compliance with RES (Renewable Energy Standards) Ahead of Schedule Renewable portfolio will represent 12% of generation sources 864 MW of Wind 149 MW owned 715 MW PPA 6 MW land fill gas PPA

TAKING RENEWABLE ENERGY TO HEART 6 Kay Wind Farm – under construction Location: 18,115 acres in Kay County, OK. Developer: Apex Clean Energy Structure: Purchase power agreement on 200 MW Projected Annual Generation: Over 843,000 MWh Projected In Service: Dec. 31, 2015

TAKING RENEWABLE ENERGY TO HEART 7 Post Rock Rotor Fly

Customers are telling us… 97% of Westar customers surveyed express some interest in renewable energy With 69% indicating that Westar is not providing enough renewable energy to its customers Source: Jayhawk Consulting 2013 TAKING RENEWABLE ENERGY TO HEART 8 Strong interest in renewable energy Westar not doing enough

TAKING RENEWABLE ENERGY TO HEART 9 …that we need to close the gap Source: Jayhawk Consulting % of Westar customers aren’t aware of Westar’s involvement in renewable energy Significant gap exists between customer awareness and Westar performance

TAKING RENEWABLE ENERGY TO HEART 10 Awareness gap doesn’t mesh with reality While there is strong interest in renewable energy within Westar customer base…. Significant gap exists between public perception and the reality of Westar renewable energy initiatives: 10% of Westar energy generation capacity is powered by wind. Westar owns or purchases power from 5 wind farms, providing enough energy to power over 250,000 Kansas homes each year. Westar wind farms reduce production of carbon dioxide (CO 2 ) an equivalent amount to that generated by 125,000 passenger cars per year. Through the efficiency of Westar wind energy generation, enough water is saved to supply the consumption needs for over 19,000 homes each year. Westar landfill gas generation supplies the energy needs of 5,000 homes In addition to using solar systems to offset energy requirements at multiple company locations, Westar will provide solar energy systems to 15 to 20 non-profit groups by the end of 2016.

Manhattan SC – 40 kW 10 kW USA Mono-crystalline Modules 10 kW USA Poly-crystalline Modules 10 kW Asian Mono-crystalline Modules 10 kW Asian Poly-crystalline Modules Lawrence SC – kW Panels mounted as 6 different angles to Sun TAKING RENEWABLE ENERGY TO HEART 11

Westar Solar Pilot - Shawnee SC 75 kW various modules –18.75 kW Cadmium Telluride –18.75 kW CIGSS (Copper, Indium, Gallium, Selenium, Sulfur) –18.75 kW Astronergy Poly-crystalline –18.75 kW Solar World Mono-crystalline SMA Sunny Boy Inverters – 4ed7-b58c-cf59148a3679&plant=6ecbe2ee-433e-4771-aa52-d93cd210eaab&splang=en-US TAKING RENEWABLE ENERGY TO HEART 12

Solar on Company Facilities - Future TAKING RENEWABLE ENERGY TO HEART 13 Parsons Service Center 20 kW East vs West 1900 Central 22.5 kW Solar Awnings – South vs West

Educational Solar Projects Fifteen Westar sponsored 10 – 30 kW solar installations In conjunction with guidance from US EPA and KDHE Schools and Non-profits TAKING RENEWABLE ENERGY TO HEART 14

TAKING RENEWABLE ENERGY TO HEART 15 Community Solar Customer Value Prop Choose to lock-in electric rates for 10 or 20 years Participation in community- based solar-powered energy Available to all customers regardless of home ownership or HOA restrictions Solar-powered renewable energy with no up-front installation fees or maintenance costs

Community Solar Business Drivers TAKING RENEWABLE ENERGY TO HEART 16  Demonstrate continued leadership in Renewable Energy  Increase awareness and visibility of renewable energy initiatives  Participate in early adoption phase of community solar  Increasing number of roof-top solar system deployments within KS  Large solar players continue to expand across the U.S.  Alternative to roof-top installation  Opportunity for customers to choose solar-powered energy Customer Choice Competitive Environment Brand Image Industry Positioning

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