Plainfield Substation: 69 kV Electrical Infrastructure in Wisconsin

Plainfield is an electrical substation located in Wisconsin, United States, operated by Alliant Energy. The facility operates at a voltage of 69 kV, which is typical for sub-transmission or distribution-level substations, serving to step down power for local distribution networks. As a substation within the U.S. electrical grid, Plainfield operates under the regulatory framework of the North American Electric Reliability Corporation (NERC) reliability standards and Federal Energy Regulatory Commission (FERC) oversight for transmission-level assets. Alliant Energy, the owner and operator, is a major utility serving the Midwest, and this substation supports the company's distribution network in the region. The substation's location in a rural area of Wisconsin contributes to grid reliability for local communities and agricultural operations. Its operational status ensures continued service for electricity consumers, and its integration into Alliant Energy's system supports broader grid stability and energy delivery.

The substation is situated in a rural area of Wisconsin, where the surrounding landscape includes agricultural fields and natural habitats. The 69 kV voltage level indicates a sub-transmission role, which typically has a lower environmental footprint compared to high-voltage transmission lines. The facility's operation is subject to environmental regulations that manage potential impacts such as electromagnetic fields and stormwater runoff.