Great Plains Energy, based in Kansas City, Missouri, is a publicly traded electric utility holding company operating in the United States. The company was formed in October 2001 when the Kansas City Power & Light Company merged with Aquila, Inc. Great Plains Energy headquarters are located in the Bartle Hall Convention Center complex at 1200 Main Street in downtown Kansas City.

The building is an iconic skyscraper, known as the Kansas City Power & Light Building. As an electric utility holding company, Great Plains Energy's primary product is electricity. The company generates, transmits, and distributes electricity to customers in Missouri and Kansas through its subsidiary, Kansas City Power & Light Company (KCP&L).

KCP&L serves approximately 900,000 customers in the region. Great Plains Energy's operations are focused in the Midwestern United States and it does not have a significant global presence. However, the company has a noteworthy subsidiary called KCP&L Greater Missouri Operations Company, which operates in the state of Missouri, serving approximately 600,000 customers.

In terms of market position, Great Plains Energy is a significant player in the electric utility industry in the United States. It is among the largest electric utilities in the Midwest and is considered one of the leading companies in the industry. There have been several noteworthy events and changes in Great Plains Energy's history.

In 2001, the merger between Kansas City Power & Light Company and Aquila, Inc. In 2018, Great Plains Energy merged with Westar Energy, forming Evergy Inc., which became one of the largest electric utilities in the Midwest. This strategic move aimed to create a more robust and efficient energy company to meet future energy needs.

As of the latest available information, Great Plains Energy is now a part of Evergy Inc., which is listed on the New York Stock Exchange under the ticker symbol EVRG. This merger has positioned the company for continued growth and success in the electric utility industry