Summary of GREAT PLAINS ENERGY INC

Item 5.04 Temporary Suspension of Trading Under Registrant's Employee Benefit Plans

On May 22, 2009, Great Plains Energy Incorporated ("Great Plains Energy") received the notice required by Section 101(i)(2)(E) of the Employment Retirement Income Security Act of 1974, as amended ("ERISA") that activity in the Great Plains Energy 401(k) Savings Plan (the "Savings Plan") and the KCP&L Greater Missouri Operations Company Retirement Investment Plan (the "Investment Plan") will be closed temporarily to any transactions in connection with the (i) merger of the Investment Plan with and into the Savings Plan, and (ii) transfer of the Savings Plan's administration to a new service provider. The blackout period in the Savings Plan is currently expected to begin June 23, 2009 at 3:00
p.m. Central Time and end during the week of July 5, 2009. The blackout period in the Investment Plan is currently expected to begin June 29, 2009 at 3:00 p.m. Central time and end during the week of July 5, 2009. During these periods, participants will be unable to check their account balances, transfer or diversify their investments (including investments held within a self-directed brokerage account), or obtain loans, withdrawals or distributions. The period beginning on June 23, 2009 at 3:00 p.m. Central Time and ending on the later to occur of the Savings Plan blackout period and the Investment Plan blackout period is referred to as the "Blackout Period".

Because the Plans include Great Plains Energy common stock as an investment option, on May 22, 2009, Great Plains Energy sent a separate notice to its directors and executive officers informing them of the Blackout Period. The notice informs Great Plains Energy directors and executive officers that during the Blackout Period, they will be generally prohibited from engaging in transactions involving Great Plains Energy common stock acquired in connection with their service to Great Plains Energy, pursuant to the requirements of
Section 306 of the Sarbanes-Oxley Act of 2002. A copy of the notice is attached as Exhibit 99.1 and incorporated herein by reference.

During the Blackout Period and for a period of two years after the end date thereof, a security holder or other interested person may obtain, without charge, information regarding the Blackout Period, including the actual end date of the Blackout Period, by contacting Mark G. English, Assistant General Counsel and Assistant Secretary, by telephone at (816) 556-2200 or in writing at Great Plains Energy, 1201 Walnut, Kansas City, MO 64106.