Originally Posted by
BlackPeter
Well - its a bit more than just power transmission. A global power network (incl. generation) transporting energy right across the globe. Not trivial, but maybe technically imaginable (would not say feasible) ... if you put infinite money into it and manage to align all world powers to work towards one common good. Obviously none of the world powers would want to use such a network for power games (excuse the pun ...).
Not sure though, whether there would be a business case - pulling e.g. a DC power cable through the Pacific would be a bit more expensive than just a fibre optical cable ... and this costs already 100's of millions of dollars. Think billions for one long power cable, and you will need plenty of them. As well - the losses will be horrible - maybe another method to boil the oceans, if global warming does not work?
Still interesting idea, and maybe if we manage to resolve the bottleneck of our Cook Street Cable (meagre 40 km undersea), than we might have the expertise to connect the other islands around (Australia, America) as a global fore rider. How hard can it be?;)