The SuperLink project is now underway to develop a prototype of a superconducting power cable for installation in Munich, Germany. The planned 12 km underground power link is expected to be the longest superconducting power cable solution in the world.

The project launched by partners NKT, Linde plc, THEVA, South Westphalia University of Applied Sciences, Stadtwerke München Infrastruktur, Karlsruhe Institute of Technology (KIT) and Stadtwerke München will bring The 12 km underground power link is expected to be the longest superconducting power cable solution in the world. Source: NKTgreen electricity from renewable energy sources to congested urban areas with minimal disruption from excavation and construction activities. The SuperLink will have a power rating of 500 MW and a voltage level of 110 kV, and is slated for installation between two substations in Munich using existing ducts to keep the construction work at a minimum.

High-temperature superconductors for Stadtwerke München Infrastruktur, a subsidiary of the utility Stadtwerke München, are under development by NKT. The compact superconducting cable is cooled to -200º C in a closed circuit with nitrogen refrigerant. A cooling system with redundant back-up coolers will be an integral part of the system.