Centrica plc provides energy and related services in Europe and North America. The company engages in the supply of gas and electricity to residential customers under the British Gas name in England, the Nwy Prydain and British Gas names in Wales, and Scottish Gas in Scotland; provides central heating, gas appliance installation and maintenance, as well as delivers a range of heating, ventilation, and air-conditioning services. It also supplies energy to the business sector; sources gas and electricity to supply to residential and industrial customers in Great Britain; provides drain cleaning services, including clearing blockages, CCTV drain inspections surveys, drain repairs, and pipework installations; and engages in gas storage operations. Centrica was founded in 1995 and is headquartered in Windsor, the United Kingdom.