ATLANTA, Feb. 20, 2013 /PRNewswire/ -- Southern Company Chairman, President and CEO Thomas A. Fanning today announced that Kimberly S. Greene has been elected president and CEO of Southern Company Services, Inc. She will also have a seat on the company's management council. Greene will succeed Susan N. Story, who is retiring from Southern Company to become chief financial officer of New Jersey-based American Water. The announced changes will take effect April 1. (Photo: http://photos.prnewswire.com/prnh/20130220/CL63648) (Logo: http://photos.prnewswire.com/prnh/20080801/SOCOLOGO) "Susan has been an extraordinary leader at Southern Company," said Fanning. "She rose to the highest ranks of our company, due to her sharp focus on finance, operations and customer service. We call these the 'whats.' But equally important are the 'hows', and Susan Story is world class at both." Greene is currently executive vice president and chief generation officer of TVA. Previously, Greene served as TVA's chief financial officer, executive vice president of Financial Services and chief risk officer. She was also group president for Strategy and External Relations at TVA. Prior to joining TVA in 2007, Greene was senior vice president of finance and treasurer at Southern Company, where she began her career. "Kim is one of us," Fanning said. "We are so fortunate to have her returning to Southern Company. She has demonstrated excellence in nearly every facet of our industry, and our customers and the employees who serve them will benefit from her wide range of expertise." In her new role, Greene will be responsible for overseeing the company's information technology, human resources, supply chain management, marketing services, business performance services and system aircraft functions, as well as SouthernLINC Wireless, Southern Company's wireless telecommunications provider, and Southern Telecom, the company's wholesale fiber optic network provider. She will also lead efforts surrounding the company's Smart Energy efforts, which include emerging technologies involving energy innovation, energy efficiency and customer energy choices.