Overview
South Texas Project Tap is an operational substation in Texas, United States, operated by American Electric Power. It operates at 138 kV, supporting regional grid stability.
South Texas Project Tap is a substation located in Texas, United States, operated by American Electric Power. As a 138 kV facility, it falls within the medium-voltage range typical for distribution and sub-transmission substations, serving as a critical node in the regional electrical grid. The substation operates under the regulatory framework of the North American Electric Reliability Corporation (NERC) and the Federal Energy Regulatory Commission (FERC), which enforce reliability standards for transmission-level assets. The 138 kV voltage level is common for connecting industrial loads and renewable energy projects, and the facility likely employs modern switchgear and automation systems compliant with ISO/IEC 61850 standards. Located in a rural area near the Gulf Coast, the substation supports the electrical infrastructure for the surrounding region, including agricultural and industrial activities. Its role in the grid ensures reliable power delivery to local communities and contributes to the overall stability of the Texas Interconnection.
Environmental context
The substation is situated in a rural area of Texas, characterized by flat terrain and proximity to the Gulf Coast. The local environment includes agricultural land and wetlands, which may influence infrastructure design to mitigate flood risks. The 138 kV voltage level indicates a balance between transmission efficiency and local distribution needs, with potential impacts on land use and wildlife corridors managed through standard environmental assessments.
Frequently asked questions
South Texas Project Tap is located in Texas, United States, near the Gulf Coast at coordinates 28.875915, -96.107238.
South Texas Project Tap operates at 138 kV, a medium-voltage level commonly used for sub-transmission and distribution in the US electrical grid.
The substation is operated by American Electric Power, a major utility company in the United States.
As part of the US electrical grid, the substation must comply with NERC reliability standards and FERC regulations, ensuring grid stability and security.
A 138 kV substation typically steps down transmission voltage for local distribution or connects industrial customers, playing a key role in regional power delivery.