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In 1907, Chicago Edison combined with Commonwealth Electric to form Commonwealth Edison Company. Six years later, it absorbed the independent Cosmopolitan Electric Company , and with that purchase effectively became the sole electric provider in Chicago.
The Commonwealth Edison Company records compose 13.25 linear feet spanning the years 1893 to 1983, and include company histories, by-laws, agreements, leases, mortgages, and reports.
In 1959, it opened the Dresden nuclear generating plant near Morris, Illinois, southwest of Chicago. Over the next three decades, the company known as “ComEd” opened several plants around the region and became the largest operator of nuclear power facilities in the United States.
Accustomed to receiving kickbacks from companies doing business in Chicago, a group of politicians devised a plan to extort $1 million from Chicago Edison. They formed a dummy company, called Commonwealth Electric Company and gave it a 50-year franchise to provide the city ’ s electricity.
ComEd is a unit of Chicago-based Exelon Corporation (NYSE: EXC), the nation’s leading competitive energy provider. ComEd began as the Western Edison Light Company in 1907, one of several companies owned by inventor and researcher Thomas Edison. As Chicago grew, so did ComEd.
In 1892, Insull became the president of the Chicago Edison Company, one of several electric companies in the city. Over the following decade, he mastered the unique economics of the electric utility business and emerged as a national leader of the industry.
The company is headquartered in Chicago with more than 4 million customers across the northern Illinois region. In 2012, ComEd launched one of the largest grid modernization and Smart Grid programs in the nation, supporting thousands of jobs and driving innovation to meet evolving customer needs.
