There are many ways to store energy. Here are some of the more common ways.:- 1. Energy storage of chemical battery: Chemical energy is stored in the battery, such as lithium-ion battery, nickel-hydrogen battery, lead-acid battery, etc. 2. Thermal energy storage: Thermal energy storage, such as hot water storage, regenerative fireplaces or heat pump storage. 3. Mechanical energy storage: Mechanical energy is stored in mechanical energy storage devices such as springs, flywheels, gravity or spring energy storage. 4. Hydraulic energy storage: hydraulic longitudinal load energy storage by means of hydraulic cylinders, accumulators, hydraulic systems, etc. 5. Gravitational energy storage: stored by lifting, stacking, falling water, pouring water, etc., such as hydroelectric power plants, elevators, dams, etc. 6. Capacitive energy storage: Storage of electrical energy in a capacitor. 7. Superconducting Magnetic Energy Storage: Using the magnetic properties of superconductors to store electrical energy. 8. Reservoir energy storage: By using a reservoir to store hydropower, water at the peak price of electricity is released to generate electricity. 9. Hydrogen Energy Storage: Convert electrical energy to hydrogen for storage and then convert it to electricity for use. These energy storage methods have their own characteristics and can be chosen according to specific application scenarios and needs.