ComEd is the largest electric utility company in Illinois, serving over 3.8 million customers across Northern Illinois. As a subsidiary of Exelon Corporation, ComEd manages a vast network of 90,000 miles of power lines and 1,300 substations, delivering safe and reliable electricity to approximately 70% of Illinois's population. The company is actively modernizing its grid infrastructure through a $2.6 billion investment program focused on smart grid technology and improved service reliability.