SSE plc, formerly Scottish and Southern Energy plc, is a holding company. The Company is involved in the generation, transmission, distribution and supply of electricity; the production, storage, distribution and supply of gas, and the provision of other energy-related services. It operates in three segments: Networks, the regulated transmission and distribution of electricity and gas, and other related networks; Retail, the supply of electricity, gas and other services to household and business customers. In June 2012, the Company, through its wholly owned subsidiary Airtricity Energy Supply (Northern Ireland) Limited, acquired Phoenix Supply Limited. In September 2012, the Company sold transmission assets at the offshore wind farm Walney 2 to Blue Transmission Walney 2 Limited, which is the licensee entity incorporated by the consortium of Macquarie Capital Group Limited (Macquarie Capital) and Barclays Infrastructure Funds Management Limited.