This guide explains what a battery energy storage system is, why it matters and how it fits across generation, transmission and behind-the-meter applications. When renewable power production exceeds demand, batteries store excess electricity for later use, therefore allowing power grids to accommodate higher shares. . A battery energy storage system (BESS), battery storage power station, battery energy grid storage (BEGS) or battery grid storage is a type of energy storage technology that uses a group of batteries in the grid to store electrical energy. Strong growth occurred for utility-scale battery projects, behind-the-meter batteries, mini-grids and solar home systems for. . Breakthroughs in battery technology are transforming the global energy landscape, fueling the transition to clean energy and reshaping industries from transportation to utilities. Two forces make BESS indispensable. .
