NSTAR is the exclusive electricity distributor to the city, though due to deregulation, customers have a choice of electric generation companies. Natural gas is distributed by National Grid plc (originally KeySpan, the successor company to Boston Gas); only commercial and industrial customers may choose an alternate natural gas supplier.
Municipal steam services are provided by Veolia Energy North America and its subsidiary Trigen Energy Corporation; which comprise the original assets of the defunct Boston Heating Company.
Verizon, successor to New England Telephone, NYNEX, Bell Atlantic, and earlier, the Bell System, is the primary wired telephone service provider for the area. Phone service is also available from various national wireless companies. Cable television is available from Comcast and RCN, with broadband Internet access provided by the same companies in certain areas. A variety of DSL providers and resellers are able to provide broadband Internet over Verizon-owned phone lines.
Water supply and sewage-disposal services are provided by the Boston Water and Sewer Commission. The Commission in turn purchases wholesale water and sewage disposal from the Massachusetts Water Resources Authority. The city's water comes from the Quabbin Reservoir and the Wachusett Reservoir, which are about 65 miles (105 km) and 35 miles (56 km) west of the city respectively. Boston is one of five cities in the country with tap water pure enough to be exempt from Environmental Protection Agency filtration requirements.
- "Massachusetts News and Analysis". US Department of Health and Human Services – National Energy Affordability and Accessibility Project. September 2003. Retrieved April 28, 2007.
- "Menino urges pols to pass steam bill – Local & Regional". Retrieved July 20, 2007.[permanent dead link]
- "After New York explosion, Menino pushes to regulate steam – Local News Updates – The Boston Globe". July 19, 2007. Retrieved July 20, 2007.
- "Trigen Energy Corporation". Energy.rochester.edu. Retrieved May 13, 2010.
- "Theodore Newton Vail and the Boston Heating Company, 1886–1890". Energy.rochester.edu. Retrieved May 13, 2010.
- "Boston Utilities". Boston Central. 2004. Retrieved April 28, 2007.
- "Background". Boston Water and Sewer Commission. 2007. Archived from the original on February 21, 2007. Retrieved April 28, 2007.
- "Your Drinking Water: Massachusetts Water Resources Authority, 2006 Drinking Water Report" (Press release). Massachusetts Water Resources Authority. June 19, 2007.
- "Pure Water Right on Tap". Retrieved June 7, 2011.