TSS 169 Substation - Commonwealth Edison, Rochelle, Illinois

TSS 169 is a substation located in the United States, operated by Commonwealth Edison. The facility operates at a voltage of 138 kV, placing it within the sub-transmission to transmission voltage range typical for distributing power to industrial and urban areas. As part of the ComEd grid, it supports the electrical infrastructure of northern Illinois. The substation operates under the regulatory framework of the North American Electric Reliability Corporation (NERC) and the Federal Energy Regulatory Commission (FERC), which enforce reliability standards for bulk power systems. The 138 kV voltage level is common for regional transmission, connecting higher-voltage lines to local distribution networks. Substations like TSS 169 are critical for maintaining grid stability and power quality. Environmentally, the substation's location in a rural area near Rochelle, Illinois, minimizes direct impact on dense urban populations. Its role in the grid ensures reliable electricity supply to surrounding communities and industries, contributing to economic activity. The facility's age and specific environmental context are not detailed, but typical substations have a moderate footprint and are designed to operate with minimal emissions.

The substation is situated in a rural area of Illinois, which reduces its direct environmental footprint compared to urban installations. Its 138 kV operation is typical for regional power distribution, supporting local industry and agriculture. The facility's presence contributes to grid reliability without significant land use changes, as substations generally occupy compact sites.