Thanks.
There seems to be competing efforts. I like Sarb Giddey and ... the Clayton offices of CSIRO Energy's 'series of tubes'.
Quote:
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When he squints, he can see, maybe 30 years down the road, Australia's coast dotted with supertankers, docked at offshore rigs. But they wouldn't be filling up with oil. Seafloor powerlines would carry renewable electricity to the rigs from wind and solar farms on shore. On board, one device would use the electricity to desalinate seawater and pass the fresh water to electrolyzers to produce hydrogen. Another device would filter nitrogen from the sky. Reverse fuel cells would knit the two together into ammonia for loading on the tankers—a bounty of energy from the sun, air, and sea.
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Sea-going infrastructure.
I think they mis-underestimate Australia's power potential.
https://en.wikipedia.org/wiki/Solar_updraft_tower
www.dw.com: World’s Tallest Solar Chimney Going Up Down Under undated article prior to 2003