Great Plains Energy (NYSE: GXP) announced today that it will release its 2017 fourth quarter and year-end earnings on Wednesday, February 21, 2018, after the market close. Terry Bassham, chairman, president and chief executive officer, and Kevin Bryant, senior vice president – finance and strategy and chief financial officer, will discuss fourth quarter and year-end 2017 earnings and operating results during a conference call with financial analysts on Thursday, February 22, at 9 a.m. ET. Supplemental financial information and the earnings presentation will be available after the February 21 market close and after 8:30 a.m. ET on February 22, respectively, on the Great Plains Energy website at www.greatplainsenergy.com.

Stockholders, analysts and other interested parties may access the earnings call by dialing (888) 353-7071 (U.S./Canada) or (724) 498-4416 (international) using pass code 7956928. A replay of the webcast will be available on Great Plains Energy’s website and telephonically through March 1, 2018, at (855) 859-2056 (U.S./Canada) or (404) 537-3406 (international), pass code 7956928

ABOUT GREAT PLAINS ENERGY

Headquartered in Kansas City, Mo., Great Plains Energy Incorporated (NYSE: GXP) is the holding company of Kansas City Power & Light Company and KCP&L Greater Missouri Operations Company, two of the leading regulated providers of electricity in the Midwest. Kansas City Power & Light Company and KCP&L Greater Missouri Operations Company use KCP&L as a brand name. More information about the companies is available on the Internet at: www.greatplainsenergy.com or www.kcpl.com.