Substation Operational

Southmost Substation: 138 kV Electrical Substation in Texas, United States

United States

Overview

Southmost Substation is an operational electrical substation in Texas, United States, operated by South Texas Electric Cooperative. It operates at 138 kV, serving the regional grid.

Southmost Substation is an electrical substation located in Texas, United States, and is operated by South Texas Electric Cooperative. The facility is operational and plays a role in the regional power distribution network, handling voltage at 138 kV, which is typical for sub-transmission and distribution-level infrastructure. As a substation under the jurisdiction of the United States, it operates within the framework of NERC reliability standards and FERC regulations for grid stability. The 138 kV voltage level indicates it serves as a critical node for distributing power from higher-voltage transmission lines to local distribution networks, supporting both urban and rural loads in South Texas. The substation's location in the Lower Rio Grande Valley places it in a region with growing energy demand due to agricultural and industrial activity. Its role in the cooperative-owned grid underscores its importance to community-based electricity supply, ensuring reliable power for residential, commercial, and agricultural customers in the area.

Environmental context

The substation is situated in the Lower Rio Grande Valley, a region characterized by subtropical climate and agricultural land use. The area is prone to extreme weather events such as hurricanes and flooding, which pose risks to electrical infrastructure. The 138 kV voltage level and rural location suggest the substation is designed with resilience measures to maintain grid stability during such events.

Frequently asked questions

Southmost Substation is located in Texas, United States, near the coordinates 25.888431, -97.424904, in the Lower Rio Grande Valley region.

Southmost Substation operates at 138 kV, a standard voltage level for sub-transmission and distribution substations in the United States.

Southmost Substation is operated by South Texas Electric Cooperative, a member-owned utility serving the South Texas region.

As part of the U.S. electrical grid, Southmost Substation must comply with NERC reliability standards and FERC regulations to ensure grid stability and security.

A 138 kV substation steps down high-voltage transmission power for local distribution, serving as a critical node in the electrical grid to deliver electricity to homes, businesses, and industries.
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