This evocative phrase refers to a high-altitude reservoir located in Tennessee. These reservoirs, often situated atop mountains, serve as vital components of pumped-storage hydroelectric systems. Water is pumped uphill to the elevated reservoir during periods of low energy demand and then released to generate electricity during peak demand times. This creates a closed-loop system for energy storage and generation.
Such facilities provide several crucial benefits. They offer a means of balancing the electrical grid by storing excess energy produced during off-peak hours. They also provide a rapid response to fluctuations in energy demand, enhancing grid stability. Historically, these systems have played a significant role in supplementing traditional energy sources and supporting the integration of renewable energy, contributing to a more resilient and sustainable energy infrastructure.