Overview
South Jackson Substation is an operational electrical substation in Tennessee, United States, owned and operated by the Tennessee Valley Authority (TVA) at 161 kV voltage level.
South Jackson Substation is an operational electrical substation located in Tennessee, United States. It is owned and operated by the Tennessee Valley Authority (TVA), a major federally owned electric utility company. The substation operates at a voltage of 161 kV, which is a common transmission-level voltage in the US grid, indicating its role in regional power distribution. The substation falls under the regulatory oversight of the North American Electric Reliability Corporation (NERC) and the Federal Energy Regulatory Commission (FERC), which set reliability standards for the bulk power system. As part of TVA's network, it adheres to NERC's Critical Infrastructure Protection (CIP) standards and FERC's regulations for transmission assets. The 161 kV voltage level suggests it serves as a subtransmission or distribution substation, stepping down power from higher voltage lines for local distribution. Operationally, South Jackson Substation plays a key role in maintaining grid stability in the Jackson, Tennessee area. TVA's system serves approximately 10 million people across seven states, and substations like this are critical for reliable electricity delivery. The facility's location in a mixed urban-rural setting underscores its importance for both residential and industrial customers in the region.
Environmental context
The substation is situated in a region with a temperate climate, where seasonal weather variations can impact grid operations. Its location in Tennessee places it within an area prone to thunderstorms and occasional ice storms, which can affect overhead transmission lines. The facility's design likely incorporates standard environmental safeguards such as oil containment for transformers and noise mitigation measures. As part of TVA's system, it supports the integration of diverse generation sources including hydroelectric, nuclear, and natural gas.
Frequently asked questions
South Jackson Substation is located in Tennessee, United States, near the city of Jackson. Its coordinates are approximately 35.58° N, -88.81° W.
South Jackson Substation operates at a voltage of 161 kV, which is a common transmission-level voltage used for subtransmission and distribution in the US power grid.
The substation is owned and operated by the Tennessee Valley Authority (TVA), a federally owned electric utility company serving the Tennessee Valley region.
As part of the US bulk power system, the substation must comply with NERC reliability standards and FERC regulations, including Critical Infrastructure Protection (CIP) requirements for cybersecurity and physical security.
A 161 kV substation typically steps down high-voltage transmission power (e.g., 500 kV or 230 kV) to lower voltages for local distribution, serving industrial, commercial, and residential customers in the surrounding area.