Thermal Energy Storage (TES) is a technology that allows excess thermal energy to be stored for later use. This process typically involves heating or cooling a material, such as water or molten salt, during periods of low energy demand. The stored energy can then be released when needed, helping to balance energy supply and demand. TES systems are commonly used in conjunction with renewable energy sources like solar power and wind energy. By storing energy generated during peak production times, these systems enhance the reliability and efficiency of energy use, reducing reliance on fossil fuels and lowering greenhouse gas emissions.