C&I energy storage systems typically have larger capacities compared to residential energy storage systems, as they need to accommodate the higher energy demands of commercial and industrial facilities. The most common type of C&I energy storage system is battery-based, typically using lithium-ion batteries due to their high energy density, long cycle life, and efficiency. However, other types of energy storage technologies, such as thermal energy storage, mechanical energy storage, and hydrogen energy storage, can also be used in commercial and industrial applications, depending on the specific energy needs and requirements of the facility.