Pipelines across Australia would be prohibitively expensive.
The last politician with the foresight for such a plan was Rex Connor in the Whitlam government. Unfortunately Red Baron voted for the small minded politicians of the day.
Connor proposed an East-West national energy grid and a gas pipeline. A concept too big for tiny Australian minds.
https://en.wikipedia.org/wiki/Rex_Connor Quote:Minister[edit]
At the 1972 election Labor came to power under Gough Whitlam, and Connor was elected to the front-bench and appointed Minister for Minerals and Energy. In this portfolio he sought to develop an Australian-controlled mining and energy sector, one not controlled by the mining companies he disliked. Among his plans were a national energy grid and a gas pipe-line across Australia from the North-West Shelf gasfields to the cities of the south-east. He liked to recite a piece of poetry by Sam Walter Foss (who was, ironically, American):
Give me men to match my mountains,
Give me men to match my plains,
Men with freedom in their visions
And creation in their veins.
Connor's economic nationalism was popular with the Labor rank-and-file, and the 1973 oil crisis seemed to many to be a vindication of his views. After the 1974 election he topped the Caucus ballot for the second Whitlam ministry. But the flood of petrodollars which accompanied the energy crisis proved to be Connor's undoing.
During 1974 Connor sought to bypass the usual loan raising processes and raise money in the Middle East through an intermediary, a mysterious Pakistani banker called Tirath Khemlani. Because of strong opposition from the Treasury and the Attorney-General's Department about the legality of the loan (and about Khemlani's general bona fides), Cabinet decided in May 1975 that only the Treasurer, not Connor, was authorised to negotiate foreign loans in the name of the Australian government. Nevertheless, Connor went on negotiating through Khemlani for a huge petrodollar loan for his various development projects, confident that if he succeeded no-one would blame him, and if he failed no-one would know.