SSE plc engages in the generation, transmission, distribution, and supply of electricity. The company operates through three segments: Wholesale, Networks, and Retail. It generates electricity from water, water, gas, coal, oil, and multi fuel. The company distributes electricity to approximately 3.8 million homes and businesses across the north of the central belt of Scotland and also central southern England; and owns and operates 132 kilovolts (KV), 275kV, and 400kV electricity transmission network using high voltage overhead lines, and underground and subsea cables. It also produces, stores, distributes, and supplies gas. In addition, it engages in electricity and utility contracting, telecommunications, energy trading, insurance, and property holding businesses, as well as provision of corporate and maintenance services. The company was formerly known as Scottish and Southern Energy plc and changed its name to SSE plc in September 2011. SSE plc was incorporated in 1989 and is based in Perth, the United Kingdom.