PPL Corporation, an energy and utility holding company, engages in the generation, transmission, distribution, and sale of electricity to wholesale and retail customers in the United States and the United Kingdom. The company operates in four segments: Kentucky Regulated, U.K. Regulated, Pennsylvania Regulated, and Supply. It is also involved in the distribution and sale of natural gas in Kentucky. In addition, the company develops renewable energy projects; and provides energy-related products and services to commercial and industrial customers. As of December 31, 2012, it had approximately 19,000 megawatts of generation capacity; and delivered electricity and natural gas to approximately 10.5 million end-users. PPL Corporation was founded in 1920 and is headquartered in Allentown, Pennsylvania.