Great Plains Energy is sweeping the fruited plains with electric power. The holding company serves about 850,800 electricity customers in Missouri and Kansas through regulated utility Kansas City Power & Light (KCP&L) and KCP&L Greater Missouri Operations Company, which both operate under the KCP&L brand. The utility company has more than 6,400 MW of primarily coal-fired generating capacity. Great Plains Energy has exited most of its deregulated businesses in order to focus on its utility operations. Electric utility retail revenues account for more than 90% of Great Plains Energy's total operating revenues. In 2016 the company agreed to buy Westar Energy in a $8.6 billion deal.