Feasibility of SMES devices based on the developed technology of superconducting magnets for tokamak fusion reactors

Achievements in the technology of superconducting magnets for the tokamak fusion devices contribute to the applicability of GJ-range SMES for the utilities by means of using already developed components and constructed production lines. The paper presents the technologies developed by the NIIEFA, VNIIKP and VNIINM, institutes, covering most of the critical items needed to construct the GJ-range SMES devices for the utility needs. That includes software packages for the supporting analysis and SMES optimization, heavy current CICC production lines with the length of pull-through jacketing tooling of up to 1 km, 30 kV 40 kA-range cryogenic current leads and 30 kV high-pressure insulating breaks for "cold" and "warm" helium communications, various types of heavy-current 30 kV range commutating equipment, including superconducting switches, and cryogenic test facilities for the acceptance tests of the produced conductors, current leads and insulation breaks.