The Southern Company (Southern Company)is a holding company, which owns all of the common stock of the traditional operating companies, including Alabama Power Company (Alabama Power), Georgia Power Company (Georgia Power), Gulf Power Company (Gulf Power), and Mississippi Power Company (Mississippi Power) ,and Southern Power Company (Southern Power), and other direct and indirect subsidiaries (together, the Southern Company system). The primary business of the Southern Company system is electricity sales by the traditional operating companies and Southern Power. The four traditional operating companies are vertically integrated utilities providing electric service in four Southeastern states. Southern Power constructs, acquires, owns, and manages generation assets. In July 2012, the Company and Turner Renewable Energy acquired a 20 megawatts solar photovoltaic power plant in Nevada from SunEdison, a subsidiary of MEMC Electronic Materials, Inc.