Overview
Rochelle Substation is an operational electrical substation in Rochelle, Illinois, owned by Commonwealth Edison. It operates at 138 kV, serving the regional power grid.
Rochelle Substation is an operational electrical substation located in Rochelle, Illinois, United States. Owned and operated by Commonwealth Edison, it plays a key role in the regional transmission network. The substation operates at a voltage of 138 kV, which is typical for sub-transmission and distribution-level infrastructure in the US. As part of the Commonwealth Edison system, Rochelle Substation is subject to North American Electric Reliability Corporation (NERC) reliability standards and Federal Energy Regulatory Commission (FERC) regulations for transmission assets. The 138 kV voltage level places it in the medium-voltage range, supporting local distribution and industrial loads. The substation's equipment likely includes circuit breakers, transformers, and switchgear compliant with IEEE and ANSI standards. The substation serves the Rochelle area, contributing to grid stability and power delivery for residential, commercial, and industrial customers. Its location in northern Illinois places it within the PJM Interconnection or Midcontinent Independent System Operator (MISO) balancing authority, depending on the specific grid region. The facility's operational status ensures continued reliability for the local community.
Environmental context
The substation is situated in a rural-to-suburban area of Ogle County, Illinois, characterized by agricultural land and small urban centers. The 138 kV voltage level indicates a moderate environmental footprint, with typical considerations including electromagnetic field management, oil containment for transformers, and vegetation clearance for rights-of-way. The site's location away from sensitive ecological areas reduces direct environmental impact, though standard mitigation measures for stormwater runoff and wildlife protection are likely in place.
Frequently asked questions
Rochelle Substation is located in Rochelle, Illinois, United States, at coordinates 41.948003, -89.054008.
Rochelle Substation operates at 138 kV, a common voltage for sub-transmission and distribution substations in the United States.
Rochelle Substation is owned and operated by Commonwealth Edison, a major electric utility serving northern Illinois.
As part of the US electrical grid, Rochelle Substation must comply with NERC reliability standards and FERC regulations for transmission and distribution assets.
A 138 kV substation steps down high-voltage transmission power for local distribution, serving industrial, commercial, and residential customers while ensuring grid stability.