Hi Line Substation - Texas Electrical Substation Operated by South Texas Electric Cooperative

Hi Line Substation is an operational electrical substation located in Texas, United States, owned and operated by South Texas Electric Cooperative. The facility operates at a voltage level of 138 kV, classifying it as a medium-voltage substation typical of regional transmission and distribution networks. The substation operates under the regulatory framework of the North American Electric Reliability Corporation (NERC) and the Federal Energy Regulatory Commission (FERC), ensuring grid reliability and compliance with mandatory standards. As part of the South Texas Electric Cooperative's infrastructure, it supports the cooperative's mission to provide reliable electricity to member consumers in the region. Hi Line Substation plays a key role in the local electrical grid, facilitating the transmission of power from generation sources to distribution networks. Its location in Texas, a state with a large and growing population, underscores its importance in maintaining grid stability and meeting energy demand in the area.

The substation is located in a region of Texas characterized by a mix of urban and agricultural land uses. The 138 kV voltage level indicates it is part of the sub-transmission system, which typically has a moderate environmental footprint. Substations of this type are generally designed with containment measures for potential oil leaks from transformers and are subject to environmental regulations to minimize impact on local ecosystems.