Compressed air energy storage (CAES) is a method of storing energy by using electricity to compress air and store it in underground caverns or large containers. When energy is needed, the stored air is released, heated, and used to drive turbines that generate electricity. This process helps balance energy supply and demand, especially when using renewable sources like solar or wind. CAES systems are beneficial because they can store large amounts of energy for long periods, making them a reliable option for energy management. By utilizing compressed air, we can enhance the efficiency of our energy systems and reduce reliance on fossil fuels.