Overview
ComEd Lombard Substation is an operational electrical substation in Lombard, Illinois, owned and operated by Commonwealth Edison. It handles voltages of 345 kV, 138 kV, and 34.5 kV, serving as a key node in the regional grid.
ComEd Lombard Substation is a high-voltage electrical substation located in Lombard, Illinois, United States. Owned and operated by Commonwealth Edison (ComEd), a major utility in the Midwest, the facility plays a critical role in the transmission and distribution of electricity across the region. The substation's voltage levels of 345 kV, 138 kV, and 34.5 kV indicate its function as a bulk power delivery point, stepping down transmission voltages for local distribution. The substation operates under the regulatory framework of the North American Electric Reliability Corporation (NERC) and the Federal Energy Regulatory Commission (FERC), which set reliability standards for the U.S. bulk power system. As part of ComEd's network, it is subject to mandatory compliance with NERC's Critical Infrastructure Protection (CIP) standards. The facility's location in a suburban area near Chicago suggests it supports a mix of residential, commercial, and industrial loads, typical of a densely populated region. Environmentally, the substation's operation involves electromagnetic fields and potential oil containment from transformers, managed under environmental regulations. Its role in grid stability is significant, as it interconnects high-voltage transmission lines and provides voltage support. Its inclusion in ComEd's system implies ongoing maintenance and upgrades to meet reliability requirements.
Environmental context
The substation is situated in a suburban setting in Lombard, Illinois, within the Chicago metropolitan area. The local environment is characterized by urban development, with residential and commercial areas nearby. Electrical infrastructure like this substation must manage potential environmental impacts such as electromagnetic fields, noise from transformers, and stormwater runoff. Regulatory compliance with the Clean Water Act and local ordinances ensures proper handling of any oil or hazardous materials. The facility's location in a floodplain area may require additional flood mitigation measures.
Frequently asked questions
ComEd Lombard Substation is located in Lombard, Illinois, United States, at coordinates 41.895427, -88.046825.
The substation handles voltages of 345 kV, 138 kV, and 34.5 kV, indicating its role in both high-voltage transmission and local distribution.
The substation is owned and operated by Commonwealth Edison (ComEd), a subsidiary of Exelon Corporation, serving the Chicago area.
As part of the U.S. bulk power system, the substation must comply with NERC reliability standards and FERC regulations, including Critical Infrastructure Protection (CIP) requirements.
Substations like ComEd Lombard step down high transmission voltages to lower distribution voltages, ensuring reliable electricity delivery to homes and businesses. They also provide switching, protection, and voltage regulation.