Overview
Crawford 138kV-345kV Substation is an operational electrical substation in Chicago, Illinois, owned by Commonwealth Edison. It serves as a key voltage transformation point between 138 kV and 345 kV transmission lines.
Crawford 138kV-345kV Substation is an operational electrical substation located in Chicago, Illinois, United States. Owned and operated by Commonwealth Edison, a major electric utility in the region, the facility plays a critical role in the local and regional power grid. The substation handles voltage transformation between 138 kV and 345 kV, indicating its importance in transmitting bulk electricity from high-voltage transmission lines to lower-voltage distribution networks. 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 bulk power system. As a 345 kV facility, it is classified as a transmission-level asset, subject to stringent NERC reliability standards for planning, operations, and maintenance. The dual voltage levels (138 kV and 345 kV) suggest the substation serves both sub-transmission and transmission functions, typical for major urban substations. Located in the Chicago metropolitan area, Crawford Substation supports one of the largest electricity markets in the United States. Its role in voltage transformation and grid stability is vital for serving residential, commercial, and industrial customers. The substation's age and specific equipment are not detailed, but its operational status and voltage class indicate it is a significant node in the Commonwealth Edison transmission network, contributing to the reliability of the regional power supply.
Environmental context
The substation is situated in an urban environment in Chicago, where electrical infrastructure is critical for supporting dense population and economic activity. The facility's voltage levels (138 kV and 345 kV) place it in a category that requires careful management of electromagnetic fields and noise, though these are typically within regulatory limits. The surrounding area is heavily industrialized, and the substation's operation is subject to local environmental regulations regarding oil containment, fire safety, and wildlife protection.
Frequently asked questions
Crawford 138kV-345kV Substation is located in Chicago, Illinois, United States, at coordinates 41.829071, -87.726833.
Crawford Substation is owned and operated by Commonwealth Edison, a major electric utility serving northern Illinois.
Crawford Substation handles voltage transformation between 138 kV and 345 kV, serving both sub-transmission and transmission functions.
As a transmission-level asset, Crawford Substation must comply with NERC reliability standards and FERC regulations, including requirements for grid stability, maintenance, and cybersecurity.
Crawford Substation is a key node in the Commonwealth Edison transmission network, facilitating the efficient transfer of electricity from high-voltage lines to lower-voltage distribution networks serving the Chicago area.