Overview
Arpin Substation is an operational electrical substation in Wisconsin, United States, handling voltages of 345 kV, 138 kV, and 115 kV, serving as a key node in the regional transmission grid.
Arpin Substation is an operational electrical substation located in Wisconsin, United States, at coordinates 44.557989, -89.944504. It operates at high voltage levels of 345 kV, 138 kV, and 115 kV, indicating its role in both bulk power transmission and sub-transmission within the regional grid. The substation is part of the larger North American power system, which is regulated by NERC reliability standards and FERC oversight for interstate transmission. As a substation with a 345 kV voltage level, Arpin Substation is classified as a high-voltage transmission asset, critical for long-distance power transfer and grid stability. The inclusion of 138 kV and 115 kV circuits suggests it also serves as a distribution point for lower-voltage networks, likely supplying industrial and residential areas in central Wisconsin. The facility's operational status and voltage diversity reflect typical infrastructure in the region, where aging switchgear and urban-rural interface pose ongoing maintenance challenges. The substation's location in Wisconsin places it within the Midcontinent Independent System Operator (MISO) footprint, which manages grid reliability and market operations across 15 states. Arpin Substation contributes to the resilience of the local grid by providing voltage support and interconnection capabilities. Its role in the transmission network is essential for integrating renewable energy sources and ensuring reliable electricity supply to communities in the area.
Environmental context
The substation is situated in a rural area of central Wisconsin, characterized by mixed agricultural and forested landscapes. The high-voltage equipment, particularly the 345 kV transformers and switchgear, requires careful management of insulating oils and SF6 gas to prevent environmental contamination. The site's proximity to natural habitats necessitates adherence to environmental regulations regarding electromagnetic fields and wildlife protection. The substation's operation supports the local grid's stability, which is increasingly important as renewable energy sources like wind and solar are integrated into the regional power mix.
Frequently asked questions
Arpin Substation is located in Wisconsin, United States, near the coordinates 44.557989, -89.944504, in a rural area of central Wisconsin.
Arpin Substation operates at voltage levels of 345 kV, 138 kV, and 115 kV, indicating its role in both high-voltage transmission and sub-transmission.
Arpin Substation is currently operational, serving as an active node in the regional electrical grid.
As part of the U.S. electrical grid, Arpin Substation operates under NERC reliability standards and FERC regulations for transmission assets, and is within the MISO market region.
A 345 kV substation is a high-voltage transmission asset critical for long-distance power transfer and grid stability, often interconnecting major generation sources and load centers.