There was once a proposal to run an extension cord from Australia to Singapore [1] since Australia could have plentiful and cheap solar power. However, the project collapsed after the capricious billionaire backers ditched it.
There was a disagreement between the co-founders. One wanted to use HVDC cable to transmit power, the other wanted to use electrolysis to produce Hydrogen, put that on ships, then burn it in Singapore to produce electricity.
To resolve the dispute, they both agreed to put the project into administration, then both made bids to take full control, with HVDC proponent Mike Cannon-Brooks (co-founder of Atlassian btw) eventually winning control.
I wouldn't be surprised if the Green hydrogen plan eventually makes a come back, as solar power from Northern Australia has a compellingly low LCOE.
Many of those dams are full to excess, at least sometimes. And what Twiggy doesn’t waste turning falling water in to energy anaemic hydrogen gas, ammonia is handy though, we can keep selling to Victoria for a profit, for the Tasmanian government to, what, waste on a footy stadium no one wants? No no, to waste storing the new Spirit of Scotland ferries.
Cynical bugger.
It’s a Utopia: https://youtube.com/watch?v=3XUn-EsThcE
(That video was uploaded a year ago but the episode the clip is from aired years before the new stadium was even proposed. And that’s not the only time that the TV show predicted a useless government project)
I'm a little surprised Singapore approved it, as it'll need to supply about 10% of Singapore's power in order to cover the cost of the cable, which seems like a big vulnerability to me.
Next question is, can they find enough buyers in Singapore for that much power.
Pretty big challenge for Singapore to figure out a way to guarantee security long term.