Connecticut Natural Gas Corp. - Distributes gas to approximately 141,000 customers in 21 Connecticut communities, in the Hartford-New Britain and Greenwich areas. The United Illuminating Company - Regional distribution utility providing electricity and energy related services to the Greater New Haven and Greater Bridgeport areas. Connecticut Water Service, Inc. - Supplies water for residential, commercial, industrial and municipal purposes. Company information, notable customers, client services, employment opportunities, investor information, corporate governance, and news. Connecticut Light and Power Company - Subsidiary of Northeast Utilities providing electric utility service to businesses and residences. Connecticut Yankee - Nuclear power plant that was commissioned in 1968 and will be decommissioned by the year 2004. State Electricity Profiles: Connecticut - Diagram showing distribution of electrical providers in the state, along with data tables.