A Magnesium Diboride Test Line Rated 1 GW Conceptual Design

Innovative Research Infrastructure on applied Superconductivity (IRIS) is a major project to build a research infrastructure in applied superconductivity, recently approved in Italy and led by INFN. As part of this programme, we are currently designing a Green Superconducting Line (GSL), 130 m long and designed to carry 40 kA of current at 25 kV, 1 GW of power, with almost zero dissipation. The article will present the up-to-date conceptual design status for the GSL. The line will eventually be tested in the new facility being prepared by INFN-Salerno and the University of Salerno (Italy).