Gravitational energy storage is a method of storing energy by using the force of gravity. This process typically involves lifting heavy objects, such as large weights or concrete blocks, to a higher elevation. When energy is needed, these objects are allowed to descend, converting their potential energy back into usable energy, often in the form of electricity. This technology is often compared to other energy storage systems, like batteries or pumped hydro storage. Gravitational energy storage is considered environmentally friendly and can be used in various applications, including renewable energy systems that require efficient energy management.