Overview
Port Gibson Substation is an operational electrical substation in Mississippi, United States, operated by Entergy Mississippi. It operates at 115 kV, serving the local grid.
Port Gibson Substation is an operational electrical substation located in Mississippi, United States. Owned and operated by Entergy Mississippi, the facility plays a role in the regional power distribution network. The substation operates at a voltage of 115 kV, which is typical for sub-transmission and distribution-level infrastructure in the United States. As part of the U.S. electrical grid, Port Gibson Substation operates under the regulatory framework established by the North American Electric Reliability Corporation (NERC) and the Federal Energy Regulatory Commission (FERC). These standards ensure reliability and security of the bulk power system. The substation's 115 kV voltage level places it in the medium-voltage category, commonly used for distributing power from transmission lines to local distribution networks. The substation supports the electrical infrastructure in the Port Gibson area, contributing to grid stability and power delivery for residential, commercial, and industrial customers. Its operational status indicates ongoing service to the community, and its location in rural Mississippi reflects the broader need for reliable electricity in less densely populated regions.
Environmental context
The substation is located in a rural area of Mississippi, where the surrounding environment includes agricultural land and natural habitats. Electrical infrastructure like this substation can have localized environmental impacts, such as electromagnetic fields and land use changes. However, its operation is subject to environmental regulations that mitigate these effects. The 115 kV voltage level is not typically associated with significant environmental concerns beyond standard siting and maintenance practices.
Frequently asked questions
Port Gibson Substation is located in Mississippi, United States, near the town of Port Gibson. Its coordinates are approximately 31.9726° N, -90.9765° W.
Port Gibson Substation operates at a voltage of 115 kV (115,000 volts), which is a common voltage level for sub-transmission and distribution substations in the United States.
Port Gibson Substation is owned and operated by Entergy Mississippi, a utility company that provides electricity to customers in Mississippi.
Substations in the United States, including Port Gibson, must comply with NERC reliability standards and FERC regulations to ensure grid stability and security. These standards cover equipment maintenance, cybersecurity, and operational protocols.
A 115 kV substation typically steps down voltage from higher transmission levels (e.g., 230 kV or 500 kV) to lower distribution levels (e.g., 34.5 kV or 12.47 kV) for local power delivery. It also provides switching and protection functions to maintain grid reliability.