A power failure, also known as a blackout, occurs when the electrical supply to a specific area is interrupted. This can happen due to various reasons, such as severe weather, equipment malfunctions, or accidents that damage power lines. During a power failure, homes and businesses may lose electricity, affecting lighting, heating, and electronic devices. Restoration of power typically involves utility companies identifying the cause of the outage and repairing any damaged infrastructure. In some cases, backup systems like generators can provide temporary electricity until the main supply is restored. Safety measures are important during a power failure to prevent accidents and ensure public safety.