Overview
Watts Bar Substation is an operational electrical substation in Tennessee, United States, owned and operated by the Tennessee Valley Authority (TVA). It operates at a voltage of 161 kV, serving as a key node in the regional transmission grid.
Watts Bar Substation is an operational electrical substation located in Tennessee, United States. Owned and operated by the Tennessee Valley Authority (TVA), the facility plays a critical role in the regional power transmission network. With a voltage level of 161 kV, it is classified as a high-voltage substation, facilitating the efficient distribution of electricity from generation sources to local utilities. 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 the bulk power system. TVA, a federally owned corporation, manages the facility as part of its extensive transmission infrastructure, which spans the Tennessee Valley region. The 161 kV voltage level is typical for sub-transmission and distribution substations, balancing capacity and safety. Environmentally, the substation supports the integration of TVA's diverse generation portfolio, which includes nuclear, hydroelectric, natural gas, and renewable sources. By maintaining grid stability and reliability, Watts Bar Substation contributes to the energy needs of residential, commercial, and industrial customers in the region. Its operational status ensures continued service to the local community and the broader interconnected grid.
Environmental context
Located in eastern Tennessee, the substation operates in a region characterized by rolling hills and proximity to the Tennessee River. The area's climate includes hot summers and mild winters, influencing electricity demand patterns. As part of TVA's grid, the substation supports the integration of low-carbon generation sources, including the nearby Watts Bar Nuclear Plant, contributing to regional air quality and emissions reduction goals.
Frequently asked questions
Watts Bar Substation is located in Tennessee, United States, near the Watts Bar Nuclear Plant. Its coordinates are approximately 35.6193° N, -84.7856° W.
Watts Bar Substation operates at a voltage of 161 kV, which is a common voltage level for sub-transmission and distribution substations in the United States.
Watts Bar Substation is owned and operated by the Tennessee Valley Authority (TVA), a federally owned corporation that provides electricity to the Tennessee Valley region.
As part of the US bulk power system, Watts Bar Substation must comply with NERC reliability standards and FERC regulations, which ensure grid stability and security.
A 161 kV substation like Watts Bar steps down transmission-level voltage for distribution to local utilities or steps up voltage for long-distance transmission, playing a key role in grid reliability and power flow management.