X0203 3 2008-07-14 0 0001143068 GREAT PLAINS ENERGY INC GXP 0001352500 Heidtbrink Scott 1201 WALNUT STREET KANSAS CITY MO 64106 0 1 0 0 SVP - Corporate Services Common Stock 824 D Non-Qualified Stock Option (right to buy) 147.13 1999-02-02 2009-02-02 Common Stock 2382 D Non-Qualified Stock Option (right to buy) 121.90 2000-02-01 2010-02-01 Common Stock 784 D Non-Qualified Stock Option (right to buy) 181.11 2001-01-31 2011-01-31 Common Stock 470 D Non-Qualified Stock Option (right to buy) 23.91 2004-12-28 2011-12-28 Common Stock 4707 D The reporting person held Aquila, Inc., common stock. As provided in the agreement and plan of merger dated February 6, 2007, between Great Plains Energy and Aquila, Inc., each share of Aquila, Inc. common stock was converted into the right to receive $1.80 per share plus 0.0856 of a share of Great Plains Energy common stock. The reporting person held Aquila, Inc., non-qualified stock options. As provided in the agreement and plan of merger dated February 6, 2007, Aquila, Inc. options converted into options to acquire shares of Great Plains Energy common stock upon completion of the merger transaction with Aquila, Inc. based upon the conversion ratio set forth in the merger agreement. The Option Exchange Ratio, as defined in the merger agreement, equals 0.1569. Executed on behalf of Scott H. Heidtbrink by Mark G. English, attorney-in-fact 2008-07-23