Alcoa Switching Station - 161 kV Substation Operated by Tennessee Valley Authority

Alcoa Switching Station is a substation located in the United States, operated by the Tennessee Valley Authority (TVA). The facility operates at 161 kV, a standard transmission voltage level, indicating its role in the high-voltage electrical grid. As part of TVA's extensive network, it supports power distribution across the Tennessee Valley region. 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 bulk power systems. TVA, a federally owned utility, adheres to these standards to ensure grid stability and security. The 161 kV voltage level places this facility in the medium-to-high voltage range, typical for sub-transmission and distribution substations. Environmentally, the substation is situated in a region with diverse geography, including urban and rural areas. Its operation supports the integration of various power sources, including hydroelectric, nuclear, and natural gas, contributing to the resilience of the local grid. The facility's location near Alcoa, Tennessee, underscores its importance in serving industrial and residential customers in the area.

The substation is located in eastern Tennessee, a region characterized by varied terrain and a mix of urban and rural land use. Its operation at 161 kV supports the transmission of electricity from TVA's generation assets, including hydroelectric dams and fossil fuel plants, to local distribution networks. The facility's age and technology are typical of mid-20th century infrastructure, with ongoing maintenance to ensure reliability and safety.