Overview
ComEd Lisle 138kV-345kV Substation is an operational electrical substation in Lisle, Illinois, operated by Commonwealth Edison. It handles 138 kV and 345 kV voltage levels, serving the regional power grid.
ComEd Lisle 138kV-345kV Substation is a key electrical infrastructure facility located in Lisle, Illinois, United States. Operated by Commonwealth Edison (ComEd), a major utility in the region, the substation is part of the high-voltage transmission network, stepping down power from 345 kV to 138 kV for distribution. As a substation, it plays a critical role in ensuring reliable electricity supply to residential, commercial, and industrial customers in the Chicago metropolitan area. The facility operates at two voltage levels: 345 kV and 138 kV, indicating its function as a transmission substation that interconnects high-voltage lines. In the United States, such substations are subject to NERC reliability standards and FERC regulation, ensuring grid stability and security. ComEd, as the owner and operator, adheres to these federal and regional requirements, including compliance with the PJM Interconnection's operational protocols. The substation's design likely incorporates modern switchgear and automation systems, though specific equipment details are not disclosed. Environmentally, the substation's location in a suburban area near Lisle minimizes land-use conflicts while supporting urban energy demands. Its role in voltage transformation reduces transmission losses and enhances grid efficiency. The facility contributes to the resilience of the local power system, particularly during peak demand periods, and supports the integration of renewable energy sources by maintaining grid stability. As part of ComEd's network, it serves millions of customers across northern Illinois, underscoring its significance in the region's electrical infrastructure.
Environmental context
The substation is situated in a suburban area of Lisle, Illinois, within the Chicago metropolitan region. Its operation involves electromagnetic fields and potential noise from transformers, but modern design mitigates these impacts. The facility supports grid reliability and efficiency, reducing energy losses during transmission. Its location near residential and commercial zones requires careful environmental management, including stormwater runoff controls and vegetation management to prevent outages. The substation's role in voltage regulation aids in accommodating variable renewable energy sources, contributing to a cleaner grid.
Frequently asked questions
ComEd Lisle 138kV-345kV Substation is located in Lisle, Illinois, United States, approximately 25 miles west of Chicago. Its coordinates are 41.799557 N, -88.058759 W.
The substation operates at two voltage levels: 345 kV (extra-high voltage) and 138 kV (high voltage). It serves as a transmission substation stepping down power from 345 kV to 138 kV for distribution.
The substation is owned and operated by Commonwealth Edison (ComEd), a subsidiary of Exelon Corporation. ComEd is the largest electric utility in Illinois, serving over 3.8 million customers.
As part of the U.S. bulk power system, the substation must comply with NERC reliability standards and FERC regulations. It also follows PJM Interconnection's operational requirements, ensuring grid stability and security.
This substation is a critical node in the transmission network, facilitating efficient power transfer and voltage regulation. It helps maintain reliable electricity supply to the Chicago area, supports peak demand, and enables integration of renewable energy sources.