Second-generation HTS wire manufacturing and technology advancement at superpower

REBa2Cu3O7−δ (REBCO) coated conductor, namely second generation high-temperature (2G HTS) wire, holds enormous promise for many real world applications such as electrical power transmission cables, superconducting magnets, energy storage, fault current limiters, motors, generators and medical devices. SuperPower is developing and manufacturing high-performance 2G HTS wire based on two high-throughput processes: IBAD-MgO for texture buffer and MOCVD for the HTS layer. Tremendous progress has been made in 2G HTS wire technology development and manufacturing in the past few years. In this paper, we report our overall achievements in kilometer long wire fabrication reaching a minimum Ic of 282 A/cm-w over 1,065 m, practical conductor development for ac application and recent achievement in high-field coils and quench detection technique.