An Energy Storage System (ESS) is a technology used to store energy for later use, typically involving batteries, supercapacitors, or other storage methods. ESS plays a crucial role in balancing energy supply and demand, enhancing grid stability, and enabling the integration of renewable energy sources. For example, in solar power systems, an ESS can store excess energy generated during the day for use at night or during peak demand periods. The development and deployment of ESS are key to advancing sustainable energy solutions and achieving energy independence.