e/SuperGrid

Information
has gloss	eng: The SuperGrid refers to an advanced technology concept for combining very long distance electric power transmission with liquid hydrogen distribution. The hydrogen is both a distributed fuel and a cryogenic coolant for the power lines, rendering them superconducting. The concept's advocates describe it as being in a "visionary" stage, for which no new scientific breakthrough is required, but requires major technological innovations before it could progress to a practical system. A system for the United States is projected to require "several decades" before it could be fully implemented. High voltage direct current lines have the capability of transmitting similar voltages, for example a 5 gigawatt HVDC system is being constructed along the southern provinces of China without the use of superconducting cables. The advantage of the SuperGrid approach is that 10% of the energy would not be lost during transmission.
lexicalization	eng: SuperGrid
instance of	c/Electric power systems components