Overview
Cumberland 500kV Substation, operated by Tennessee Valley Authority, is a high-voltage electrical substation in Tennessee, United States, critical for regional grid stability and power transmission.
Cumberland 500kV Substation is a key electrical infrastructure asset located in Tennessee, United States, operated by the Tennessee Valley Authority (TVA). As a 500kV substation, it operates at a high voltage level, indicating its role in bulk power transmission and interconnection within the regional grid. The facility is part of TVA's extensive transmission network, which serves a multi-state area including Tennessee, Alabama, Mississippi, Kentucky, Georgia, North Carolina, and Virginia. The substation's technical specifications include a voltage rating of 500,000 volts (500 kV), placing it in the high-voltage category typical for major transmission substations. Such facilities are essential for stepping down voltage from extra-high-voltage transmission lines to lower levels for distribution or for interconnecting different parts of the grid. In the United States, substations like this operate under the regulatory oversight of the Federal Energy Regulatory Commission (FERC) and must comply with North American Electric Reliability Corporation (NERC) reliability standards to ensure grid stability and security. Environmentally, the substation's location in a rural area of Tennessee minimizes direct impact on urban populations, but its operation is crucial for integrating power generation sources, including TVA's diverse mix of hydroelectric, nuclear, coal, natural gas, and renewable energy plants. The facility supports the reliable delivery of electricity to millions of customers, contributing to the economic and social well-being of the region. Its high voltage level and role in the transmission grid underscore its significance in maintaining system reliability and resilience against disturbances.
Environmental context
The substation is situated in a rural area of Tennessee, which reduces potential electromagnetic field exposure to dense populations. Its operation supports the integration of renewable energy sources and helps maintain grid stability, which is vital for reducing reliance on fossil fuels.
Frequently asked questions
Cumberland 500kV Substation is located in Tennessee, United States, at coordinates 36.392124, -87.657480. It is operated by the Tennessee Valley Authority (TVA).
Cumberland 500kV Substation operates at a voltage of 500,000 volts (500 kV), classifying it as a high-voltage substation used for bulk power transmission.
The substation is operated by the Tennessee Valley Authority (TVA), a federally owned corporation that provides electricity to parts of seven southeastern states.
In the United States, high-voltage substations must comply with NERC reliability standards and FERC regulations to ensure grid stability and security. TVA, as a federal entity, also adheres to additional federal requirements.
As a 500 kV substation, it plays a critical role in transmitting electricity from power plants to distribution networks, helping to balance load and maintain reliability across TVA's service area.