Great Plains Energy (NYSE: GXP) announced today that it will release its 2014 fourth quarter and year-end earnings on Wednesday, February 25, 2015, after the market close. On Thursday, February 26, 2015, at 9:00 a.m. EST, executive officers of the Company will conduct a webcast and conference call to discuss the Company’s 2014 fourth quarter and year-end earnings and operating results. Supplemental financial information and the earnings webcast presentation will be available after the February 25 market close and after 8:30 a.m. EST on February 26, 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 64793599. A replay of the webcast will be available on Great Plains Energy’s website and telephonically through March 5, 2015, at 855-859-2056 (U.S./Canada) or 404-537-3406 (international), pass code 64793599.

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.