A reduction in voltage in an electrical power supply system is termed a brownout. This intentional or unintentional drop in voltage can dim lights and cause electronic devices to malfunction. For example, a computer may unexpectedly shut down or data loss could occur if the voltage dips too low during a brownout.
The primary reason for implementing a controlled reduction in voltage is to lower demand during peak usage periods, preventing a complete blackout. Utilities may initiate these voltage reductions to maintain system stability and prevent damage to infrastructure. Historically, these events have been utilized during heat waves or periods of high industrial consumption to manage strain on the power grid.
