A dream world with thousands of miles of (very ?) hgh voltage power transmission lines ??? Funny when you think that renewables (think wind and solar) would have been the acme of decentralized enery ! Not to speak of "geopolitical issues", just a "peccadille" ones.

Wow, this plan by GEIDCO is a triumph of hype over reality. You'd need almost free superconducting transmission lines for this to be practical. And even then it would probably just be cheaper to build standard nuclear around the world, let alone melt down proof 4th gen molten salt reactors.

just more government subsidy seeking carnival barking con men ... 2 words, transmission losses ...

I like it. The feasibility of such a project depends greatly on the participants of each individual country, but we already live in such a globalized world where countries are highly interconnected with each other. Why not go further?

This author would do well as a politician.
The fifth line is,"Clean, renewable energy will soon be cheaper than traditional polluting sources... ." And the rest of the article explains why the word "soon" is nowhere near applicable to the subject.
All this in addition to the lies that renewable sources are actually practical to begin with. Such as a major point always ignored by the missionaries and preachers of solar power is that by the time you pay off the large initial cost of the system, you have to replace its components.
Then there was the "secret" where all the huge windmills put up under obama's admin have to be backed up with diesel generators (Oh no - fossil fuels!) b/c they cannot keep functioning for continual production of power in many areas, the windmills require frequent changes of the (very expensive) lubricating oil they used to keep from catching fire, and many windmills were deployed in areas where they cannot be continually driven by the wind. A very common sight in Pennsylvania is only one or two of a group of five of these giant wastes of taxpayer money not spinning.
All so the "politically correct" can be happy wasting our money.

China is already building a new highway and rail system to revive and modernize the ancient China Silk Road. This modernized path would obviously be the right path for transmission lines from China to the whole of central Asia and India. The clear geopolitical implication will be to unify the eastern, central, and southern parts of the Eur-Asia landmass under the control of China. This literally will define the Chinese view of Asia as their sphere of influence. While the early impetus will just be good & attractive business opportunities the clear longer term intent is to establish political & economic control as widely as possible. The "member" nations of the consortium may not like that longer term prospect. For 28 out of the last 30 centuries the largest strongest military, economic, and cultural power has been China. They want that reputation back. Only the last two hundred years and the industrial revolution changed that, and China wants to reverse that. The problem here is that business owners with greedy, short term small world views only think of their own small outcomes. This is one of the severe threats made possible by last Tuesday's disaster. Anyone care to imagine that Trump's world view covers enough ground here?

The term "super grid" (or the word "supergrid") has several meanings, one of which is a buried pipeline carrying liquid hydrogen which cools a transmission line to superconducting. It delivers energy both as hydrogen and as electricity, resulting in extremely efficient transmission. I had hopes from the title of the article that that was what was planned, but apparently not. The losses of such a pipeline are much lower than that of "ultra high voltage power transmission lines," mostly because the electricity is conducted through a superconductor, and the hydrogen is a very good storage medium and useful for powering vehicles. Also, because the pipeline is underground, it's much less a blight on the landscape than ugly transmission towers.

This top down approach to power distribution seems bass-ackwards. It makes sense to produce energy and distribute it large distances with ultra-high voltage networks, but such networks should be owned and operated locally with mutually agreed on standards and protocols. Final authority for power generation is already local. Authority for distributing power should also be local, forcing all links to be cooperative and free market. Without that local control, world citizens may as well give up all their liberty to the GEIDCO who could quickly become more powerful than any local or even regional government. The GEIDCO network could also become a single point of failure on a global scale which should cause shudders down the back of any risk analyst. (What if they use the same software at all nodes in the network and those nodes have a hardware destroying vulnerability?) A huge global power distribution grid may be a great idea, but let it grow organically and cooperatively with the stability of distributed and diverse management and operation.

PV is very inefficient. Its main value is that it can double as a roof. The value of the grid for PV is that the grid provides free energy storage. These two things make PV economical in many cases. If, at some point, there are nuclear fusion plants, these will require much larger distribution systems.

Map is wrong anyway, Australia has hydropower too.