For more than a century, ComEd has powered northern Illinois with safe, reliable and affordable electricity. Today, we serve approximately 9.3 million people across 26 counties and more than 400 communities, serving nearly 70 percent of the state’s population. As Illinois’ largest electric utility and the fourth largest utility in the United States, we connect customers, businesses and communities to the energy they need every day while helping prepare the region for a cleaner and more connected energy future.
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