Overview
Cosby Substation is an operational electrical substation in Tennessee, United States, owned and operated by the Tennessee Valley Authority (TVA) with a voltage level of 161 kV.
Cosby Substation is an operational electrical substation located in Tennessee, United States. It is owned and operated by the Tennessee Valley Authority (TVA), a federally owned electric utility corporation. The substation operates at a voltage of 161 kV, placing it in the high-voltage transmission category, which is critical for regional grid stability and power distribution. As part of TVA's extensive transmission network, Cosby Substation adheres to North American Electric Reliability Corporation (NERC) reliability standards and is subject to Federal Energy Regulatory Commission (FERC) regulation. The 161 kV voltage level is typical for sub-transmission and transmission applications, facilitating the efficient transfer of electricity from generation sources to local distribution networks. TVA's infrastructure is designed to support the growing energy demands of the Tennessee Valley region. The substation plays a vital role in ensuring reliable electricity supply to the surrounding communities and industries. Its operational status contributes to the resilience of the local grid, supporting economic activities and daily life. TVA's commitment to grid modernization and maintenance helps mitigate risks associated with aging infrastructure and extreme weather events.
Environmental context
The substation is located in a rural area of eastern Tennessee, near the Great Smoky Mountains. The region's mountainous terrain and forested landscape can pose challenges for transmission line maintenance and vegetation management. Seasonal storms and occasional ice events may affect grid reliability, requiring robust design and operational protocols. TVA's environmental stewardship includes measures to minimize impacts on local ecosystems and wildlife habitats.
Frequently asked questions
Cosby Substation is located in Tennessee, United States, near the Great Smoky Mountains. Its coordinates are approximately 35.81° N, -83.25° W.
Cosby Substation is owned and operated by the Tennessee Valley Authority (TVA), a federally owned electric utility corporation that provides electricity to the Tennessee Valley region.
Cosby Substation operates at a voltage of 161 kV, which is a common voltage for high-voltage transmission and sub-transmission systems in the United States.
As part of the US electrical grid, Cosby Substation must comply with NERC reliability standards and FERC regulations. These standards ensure grid stability, cybersecurity, and operational safety.
A 161 kV substation like Cosby plays a critical role in the transmission grid by stepping down voltage from higher levels for distribution or stepping up voltage for long-distance transmission, ensuring reliable power delivery to consumers.