Consolidated Edison, Inc., through its subsidiaries, engages in the regulated electric, gas, and steam delivery businesses in the United States. The company offers electric services to approximately 3.5 million customers in New York City and Westchester County; gas to approximately 1.1 million customers in Manhattan, the Bronx, parts of Queens, and Westchester County; and steam to approximately 1,576 customers in parts of Manhattan. It also supplies electricity to approximately 0.3 million customers in southeastern New York and northern New Jersey; and gas to approximately 0.1 million customers in southeastern New York. The company operates 533 circuit miles of transmission lines; 15 transmission substations; 64 distribution substations; 89,673 in-service line transformers; 3,729 pole miles of overhead distribution lines; and 2,210 miles of underground distribution lines, as well as 4,341 miles of mains and 377,490 service lines for natural gas distribution. In addition, it owns, operates, and develops renewable and energy infrastructure projects; and provides energy-related products and services to wholesale and retail customers, as well as invests in electric and gas transmission projects. The company primarily sells electricity to industrial, commercial, residential, and government customers. Consolidated Edison, Inc. was founded in 1823 and is based in New York, New York.