Overview
Oak Brook Substation is an operational electrical substation in Illinois, United States, owned and operated by Commonwealth Edison. It operates at a voltage of 138 kV, serving the local grid.
Oak Brook Substation is an operational electrical substation located in Illinois, United States. Owned and operated by Commonwealth Edison, the facility is part of the regional transmission network that delivers electricity to residential, commercial, and industrial customers in the area. The substation operates at a voltage of 138 kV, which is a common transmission-level voltage in the United States. As part of the Commonwealth Edison system, it falls under the regulatory oversight of the Federal Energy Regulatory Commission (FERC) and must comply with North American Electric Reliability Corporation (NERC) reliability standards. These standards ensure grid stability and security, including requirements for maintenance, protection systems, and operational coordination. As a substation in a suburban area near Chicago, Oak Brook Substation plays a critical role in maintaining reliable power supply to a densely populated region. Its location within the PJM Interconnection, one of the largest regional transmission organizations in the U.S., underscores its importance in balancing supply and demand across a wide geographic area.
Environmental context
The substation is situated in a suburban environment near Oak Brook, Illinois, a community with mixed residential and commercial land use. Electrical infrastructure in such settings typically involves considerations for electromagnetic fields, noise, and visual impact. The facility's 138 kV voltage level is moderate, and its operation is subject to environmental regulations that address these factors. The surrounding area is part of the Chicago metropolitan region, which has a history of industrial activity and ongoing urban development.
Frequently asked questions
Oak Brook Substation is located in Illinois, United States, near the village of Oak Brook in DuPage County. It is part of the Commonwealth Edison transmission network serving the Chicago metropolitan area.
Oak Brook Substation operates at 138 kV (138,000 volts), which is a standard transmission voltage in the United States. This voltage level is used to efficiently transmit electricity over medium distances to distribution substations.
Oak Brook Substation is owned and operated by Commonwealth Edison (ComEd), a subsidiary of Exelon Corporation. ComEd is the primary electric utility for northern Illinois, serving millions of customers.
As part of the U.S. bulk power system, Oak Brook Substation must comply with NERC reliability standards and FERC regulations. These standards cover grid reliability, cybersecurity, and emergency preparedness. The facility is also subject to state-level regulations from the Illinois Commerce Commission.
A 138 kV substation like Oak Brook Substation serves as a node in the transmission network, stepping down voltage from higher levels (e.g., 345 kV) for distribution to local substations. It also provides switching and protection functions to isolate faults and maintain grid stability.