Tennessee Valley Authority, transmission planning
TVA installed a physical attack-resistant fence at a critical 500-kV substation.

TVA Builds Resilience

The Tennessee Valley Authority system is designed to withstand and recover from a wide range of threats and risks.

In nontechnical terms, resilience is the ability to spring back quickly after an event of any nature that could cause a disturbance to the grid. The location and reach of the Tennessee Valley Authority (TVA) system expose it to a wide range of natural events. Notable past occurrences include a Kentucky ice storm in January 2009, heavy rain in May 2010 that caused a river crest 25.5 ft (7.8 m) above flood stage, and multiple tornados in

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