"The electrical conductivity of QW is higher than that of copper at one-sixth the weight, and QW is twice as strong as steel. A grid made up of such transmission wires would have no line losses or resistance, because the electrons would be forced lengthwise through the tube and could not escape out at other angles."
However, in 2006 it was "estimated that at least 5 years will be needed"...
A room temperature superconductor?