Solar energy storage systems are technologies that capture and store energy generated from the sun using solar panels. These systems allow users to save excess energy produced during sunny days for use during cloudy days or at night, enhancing the efficiency of solar power. Typically, solar energy storage systems use batteries, such as lithium-ion batteries, to hold the energy. This stored energy can then be used to power homes or businesses, reducing reliance on the grid and lowering electricity bills. These systems contribute to a more sustainable energy future by maximizing the use of renewable energy sources like solar panels.