Highway 22 Substation - 345 kV Electrical Substation in the United States

Highway 22 Substation is a high-voltage electrical substation located in the United States, operated by American Transmission Company (ATC). The facility operates at 345 kV, placing it in the large-scale transmission category, critical for long-distance power transfer and grid interconnection. As part of ATC's network, it supports the reliable delivery of electricity across the Midwest. 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 345 kV voltage level is typical for major transmission substations that interconnect regional grids and serve large load centers. ATC's infrastructure is designed to meet NERC's Critical Infrastructure Protection (CIP) standards for cybersecurity and physical security. Environmentally, the substation's location in a rural area of Wisconsin minimizes direct impact on urban populations, though its high voltage requires careful management of electromagnetic fields and vegetation clearance. The facility contributes to grid resilience by enabling power flow from generation sources to demand centers, supporting the integration of renewable energy and maintaining system stability under varying load conditions.

The substation is situated in a rural area of Wisconsin, where agricultural land and natural habitats surround the facility. High-voltage transmission infrastructure like this requires rights-of-way maintenance to prevent vegetation interference, which can affect local ecosystems. The 345 kV lines also generate electromagnetic fields, though standard setback distances mitigate exposure. The facility's location away from dense urban areas reduces noise and visual impact, while its role in the grid supports efficient power delivery and reduces transmission losses.