Automatic Generation Control (AGC)

Automatic Generation Control (AGC) is a system used in power grids to maintain a balance between electricity supply and demand in real-time. It continuously monitors the grid's frequency and power flow, and automatically adjusts the output of multiple power plants to keep the system stable. When demand increases or decreases, AGC signals generators to produce more or less electricity accordingly. This automation helps prevent blackouts, ensures efficient power distribution, and maintains a steady voltage and frequency across the grid, supporting reliable and economical electricity supply.