Duff Substation: 345/138 kV Electrical Substation in the United States

Duff Substation is an operational electrical substation located in the United States, with coordinates 38.311695, -87.023997. The facility operates at high voltage levels of 345 kV and 138 kV, indicating its role in both transmission and sub-transmission networks. As a substation, it serves as a critical node for voltage transformation and power routing within the electrical grid. Operating under the regulatory framework of the United States, Duff Substation is subject to NERC reliability standards and FERC oversight for transmission-level assets. The dual voltage levels suggest the presence of step-down transformers, typical for connecting high-voltage transmission lines to lower-voltage distribution networks. The facility's location in a rural area of Indiana likely supports local industrial or residential loads. The substation's operational status and voltage class underscore its importance for grid stability and energy delivery. By facilitating efficient power transfer, it contributes to the reliability of the regional electrical infrastructure. Its role is essential for maintaining supply-demand balance and supporting downstream communities.

The substation is situated in a rural area of Indiana, where the surrounding landscape includes agricultural fields and scattered woodlands. Electrical infrastructure in such settings typically has minimal direct environmental impact, though the high-voltage lines may require cleared rights-of-way. The facility's operation supports local energy needs without significant ecological disruption.