Comment Re:CLEAN-ENERGY cables??? (Score 1) 46
There are lots of different kinds of cables for different application. What you say is true, but it doesn't necessarily trivially apply in all circumstances. For example the undersea cables have limits. The person being interviewed in the article specialized in undersea cables, from what I can tell. I don't think you can simply just jack up the voltage and magically get more capacity through an existing undersea line.
As others stated, traditional overhead wires also have their limits. and are designed for specific voltages and currents before you run into problems with insulators, discharges, etc.