which is not the "regular" AC multiphase power transmission. There are existing HVDC links in Europe to join various unsync'd parts of the European grid and its good for quite long legs between stations (there will be a few between Australia and Singapore).
Yes, there's also an aspect that Northern Australia has so much open space and sunshine that transmission losses can be sustained ans still turn a profit.
Browsing other Wikipedia articles let me know that one of the longest existing HVDC is the Rio Madeira HVDC system[1] at 2375 km, and the longest underwater HDVC is the North Sea Link [2] at 720 km
So while the Singaporian-Australian link still feel monumental it's not as science-fictiony as I initially thought.
https://en.wikipedia.org/wiki/High-voltage_direct_current
which is not the "regular" AC multiphase power transmission. There are existing HVDC links in Europe to join various unsync'd parts of the European grid and its good for quite long legs between stations (there will be a few between Australia and Singapore).
Yes, there's also an aspect that Northern Australia has so much open space and sunshine that transmission losses can be sustained ans still turn a profit.