A grid-tied BESS offers an advantage over PV- or wind-connected BESS during days of higher loads and prolonged overcast conditions (lower levels of solar irradiance) or low wind production, when the ability for PV- or wind-connected energy storage to charge will be limited. Featuring lithium-ion batteries, integrated thermal management, and smart BMS technology, these cabinets are perfect for grid-tied, off-grid, and microgrid applications. Explore reliable, and IEC-compliant energy storage systems designed for renewable integration, peak shaving, and backup power. This use case explores the application of BESS in the of-grid sector, focusing on its usage for power ge area without access. BESS, or Battery Energy Storage System, is a system that stores energy for use at a later time using a battery technology. Hawaiian Electric's proposed BESS projects will employ state-of-the-art, grid-tied energy storage battery units. The commerical and industrial (C & I) system integrates core parts such as the battery units, PCS, fire extinguishing system. Central solar inverters are used to convert DC power from solar panels into AC power so it can be used by homes or businesses or connected to the grid.