Butternut Substation - 138 kV Transmission Facility in the United States

Butternut is an operational electrical substation located in the United States. As a transmission-level substation with a voltage of 138 kV, it plays a key role in the regional power grid by stepping down high-voltage electricity for distribution or interconnecting transmission lines. The facility is situated at coordinates 43.602425, -88.441935, placing it within a rural or suburban area of the Midwest. The substation operates under the regulatory oversight of the North American Electric Reliability Corporation (NERC) and the Federal Energy Regulatory Commission (FERC), which enforce reliability standards for the bulk power system. At 138 kV, Butternut is classified as a high-voltage substation, typical of those used to connect generation sources to load centers. The facility likely includes switchgear, transformers, and protection systems compliant with standards such as IEEE C37 for high-voltage equipment. As part of the U.S. electrical infrastructure, Butternut contributes to the stability and reliability of the local grid. Its location in the Midwest, a region with significant wind energy generation, may also support the integration of renewable resources. The substation's operational status ensures continued service to residential, commercial, and industrial customers in the area.

The substation is located in a rural area of Wisconsin, characterized by agricultural land and scattered woodlands. The 138 kV voltage level suggests it is part of the transmission network, which can have environmental impacts through electromagnetic fields and land use for rights-of-way. However, proper siting and mitigation measures are typically employed to minimize effects on local ecosystems and wildlife.