Superconducting Magnetic Energy Storage (SMES) System stores electricity within the magnetic field of a coil from the grid that consists of a superconducting wire with near-zero loss of energy. Superconducting magnetic energy storage includes three parts: cryogenically cooled refrigerator, superconducting coil, and power conditioning system. Superconducting magnetic energy storage possesses high power, high-energy conversion efficiency and instant response time.