Stillwell Substation - High-Voltage Electrical Substation in the United States

Stillwell Substation is an operational electrical substation located in the United States, with coordinates 41.537168, -86.578525. Operating at a voltage of 345 kV, it is classified as a high-voltage substation, critical for long-distance power transmission and grid interconnection. The facility is part of the broader North American electrical infrastructure, which is regulated by NERC reliability standards and FERC oversight. The substation's 345 kV voltage level indicates it serves as a major node in the transmission network, likely connecting multiple generation sources to load centers. In the United States, such high-voltage substations are essential for maintaining grid stability and enabling bulk power transfer across regions. The facility operates under NERC's Critical Infrastructure Protection (CIP) standards, which mandate cybersecurity and physical security measures for assets of this scale. Located in a region with coordinates near the Indiana/Michigan border, Stillwell Substation supports local and regional electricity distribution. Its operational status ensures continued reliability for surrounding communities and industries. The substation's role in the grid underscores its importance in facilitating renewable energy integration and meeting growing electricity demand in the area.

The substation's 345 kV voltage level places it in the high-voltage transmission category, which typically involves larger land use and potential electromagnetic field considerations. Its location in a rural or suburban area near LaPorte County, Indiana, may intersect with agricultural or natural landscapes, requiring careful siting to minimize ecological disruption. Standard mitigation measures include maintaining vegetation clearance and using low-impact designs to reduce visual and habitat impacts.