ComEd, or Commonwealth Edison Company, is a leading electric utility serving approximately 3.8 million customers in Northern Illinois. Covering about 70% of the state's population across an 11,400-square-mile area, ComEd operates as an energy delivery company and is a subsidiary of Exelon Corporation. The company has a rich history dating back to the late 19th century and has grown significantly over the years, managing over 90,000 miles of power lines. ComEd focuses on delivering safe and reliable electricity to homes and businesses. The company emphasizes technology upgrades to reduce outages and offers bill management programs to help customers save on energy costs. ComEd has invested over $5 billion in its transmission and distribution system since 2001 and has supported energy efficiency initiatives that have saved customers billions and reduced carbon emissions. Additionally, ComEd engages in community service and economic development, contributing to regional growth and environmental goals.