Risk: Medium Substation Operational

ComEd Goodings Grove 138kV-345kV Substation | High-Voltage Electrical Infrastructure in Illinois

United States

Overview

ComEd Goodings Grove 138kV-345kV Substation is a high-voltage electrical substation in Illinois, USA, operated by Commonwealth Edison. It steps down transmission voltages for local distribution.

ComEd Goodings Grove 138kV-345kV Substation is a key electrical infrastructure facility located in Illinois, United States, operated by Commonwealth Edison (ComEd), a major utility serving northern Illinois. The substation handles voltages of 345 kV, 138 kV, and 34.5 kV, placing it in the high-voltage transmission category, critical for grid stability and power distribution across the region. As part of the US electrical grid, this substation operates under NERC reliability standards and FERC regulations, ensuring compliance with mandatory reliability requirements. The facility's voltage levels indicate its role in both bulk power transmission (345 kV) and sub-transmission (138 kV) to local distribution networks. Typical for large urban substations, it likely employs gas-insulated switchgear (GIS) or air-insulated switchgear (AIS) depending on space and environmental considerations. The substation serves the growing residential and commercial areas in Will County, supporting grid reliability for thousands of customers. Its strategic location near Chicago's southwest suburbs enhances grid resilience and facilitates integration of renewable energy sources. The facility's operational status ensures continuous power supply to critical infrastructure and communities.

Environmental context

Located in a suburban area of Illinois, the substation's environmental context involves proximity to residential zones and natural habitats. High-voltage equipment may generate electromagnetic fields (EMF), though within regulatory limits. Stormwater management and oil containment systems are typically in place to prevent runoff contamination. The site's design considers local wildlife corridors and vegetation management to reduce ecological impact.

Frequently asked questions

ComEd Goodings Grove Substation is located in Illinois, United States, near the Goodings Grove area in Will County, approximately 30 miles southwest of Chicago.

The substation handles three voltage levels: 345 kV for bulk transmission, 138 kV for sub-transmission, and 34.5 kV for local distribution, making it a critical node in the regional power grid.

The substation is operated by Commonwealth Edison (ComEd), a subsidiary of Exelon Corporation, which provides electricity to over 3.8 million customers in northern Illinois.

US substations must comply with NERC reliability standards for grid stability and FERC regulations for interstate transmission. Additionally, ISO/IEC 61850 standards for substation automation are commonly adopted.

By stepping down high transmission voltages to distribution levels, the substation ensures stable power supply to residential, commercial, and industrial customers, while also supporting integration of renewable energy and grid resilience.
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