An energy storage system is equipment that stores electricity for later use, commonly using batteries, flywheels, or thermal storage. It helps smooth variable supply from sources like solar or wind, covers peak demand, and supports backup power when the grid is unstable or unavailable.
In cyber security, these systems matter because they are often connected to building management, industrial control, and remote monitoring networks. If an attacker can alter charging schedules, disable inverters, or tamper with battery management software, they may cause downtime, overload equipment, or reduce backup capacity. Defenders protect storage systems with network segmentation, strict access control, signed firmware, logging, and monitoring of control commands and telemetry. In data centers and other critical infrastructure, secure storage is part of both operational resilience and attack resistance.