I saw some and was an observer when electricity was to be transported.
The trick is to use high voltage so it just doesn't fizzle out.
NT to Singapore is about 2300 km
This is getting close to world records But you put 10 into the pipe but only one comes out very expensive power World's Longest Power Transmission Lines. ...Belo Monte-Rio de Janeiro transmission line, Brazil – 2,543km. ...Rio Madeira transmission link, Brazil – 2,385km. ...Belo Monte-Estreito transmission line, Brazil – 2,092km. ...Jinping-Sunan transmission line, China – 2,090km. ...Xiangjiaba-Shanghai transmission line, China – 1,980km.