Stadtwerke München GmbH (Munich City Utilities) or SWM is a German communal company, owned by the city of Munich, which offers public services for the city and the region of Munich. The company supplies electricity for more than 95% of Munich's 750.000 households as well as natural gas, drinking water and, through its stake in the M-net Telekommunikations GmbH, telecommunications services. SWM is Europe's largest municipal utility company and ranks among Germany's principal energy providers according to company information. Expanding use of renewable energy has been a central element in the company's strategy since 2008.