An Energy Storage Battery, or Battery Energy Storage System (BESS), stores electricity for later use, acting like a large rechargeable battery to balance grid supply and demand, integrate renewables (solar/wind), provide backup power during outages, and reduce costs by shifting energy use to off-peak hours. These systems, often using lithium-ion technology, are crucial for grid stability and renewable energy adoption, converting DC power from batteries to AC for the grid using inverters.It contributes to a more reliable and resilient energy infrastructure.