Overview
Terrebonne Substation is an operational electrical substation owned by Entergy Louisiana in the United States. It operates at 230 kV, serving as a key node in the regional transmission grid.
Terrebonne Substation is an operational electrical substation located in Louisiana, United States, owned and operated by Entergy Louisiana. The facility operates at a voltage of 230 kV, classifying it as a high-voltage transmission substation critical for regional grid stability. As part of the Entergy Louisiana network, the substation adheres to North American Electric Reliability Corporation (NERC) reliability standards and Federal Energy Regulatory Commission (FERC) regulations for transmission-level assets. The 230 kV voltage level is typical for bulk power transmission, connecting generation sources to distribution networks and large industrial customers. The substation plays a vital role in delivering electricity to communities and industries in the Terrebonne Parish area. Its location in southern Louisiana places it within a region prone to hurricanes and coastal flooding, requiring robust infrastructure design and operational resilience to maintain grid reliability.
Environmental context
The substation is situated in a low-lying coastal region of Louisiana, an area characterized by wetlands and vulnerability to tropical storms and sea-level rise. Electrical infrastructure in this zone must incorporate flood mitigation measures and storm-hardened designs to ensure continuous operation during extreme weather events. The surrounding environment includes marshlands and bayous, which provide natural storm buffers but also pose challenges for infrastructure maintenance and access.
Frequently asked questions
Terrebonne Substation is located in Louisiana, United States, at coordinates 29.658754, -90.756266. It serves the Terrebonne Parish area.
Terrebonne Substation operates at 230 kV, which is a high-voltage transmission level used for bulk power transfer across the regional grid.
Terrebonne Substation is owned and operated by Entergy Louisiana, a major utility company serving the state.
As part of the US transmission grid, Terrebonne Substation must comply with NERC reliability standards and FERC regulations for grid stability and security.
A 230 kV substation steps down transmission voltage for distribution or interconnects transmission lines, ensuring reliable electricity supply to industrial, commercial, and residential customers.