The best solution for transport fuel is becoming feasible, ammonia produced by electrolysis of water or hydrogen, and pure nitrogen or air. Bio-fuels won't ever meet demand and have issues on a range of fronts, not least the displacement of food crops.

The electricity for the electrolysis can be nuclear generated, or renewable (a possible use for SA's wasted investment in wind/solar instead of sharing in nuclear or clean coal on the eastern seaboard).

Ammonia can burn in an internal combustion or turbine engine, or react directly in a fuel cell, producing only waste nitrogen and water in each case. Or, it can be decomposed by CSIRO's newly developed industrial membrane into nitrogen (waste) and hydrogen for fuel cells

The hydrogen density of easily liquefied ammonia, hence its energy density, is enormously greater than compressed hydrogen and close to gasoline's. CSIROs membrane allows effective large scale hydrogen transport.

Nuclear can do it all i.e. produce industrial and domestic electricity directly and all transport fuels by electrolysis, and at a rate that viably meets current and growing demand. The intermittency and low energy density of renewables means they would achieve these ends only on an unimaginably humongous scale.

Around 2 decades ago, there was an article that said Australian energy prices were too low, and had to increase before new infrastructure would be built.

Well someone has successfully increased our energy prices, and infrastructure is closing down, yet new infrastructure is yet to be built.

>Problem: Generators are loathe to add new electricity generating capacity due to >uncertainty regarding the regulatory and legislative regimes.

In reality we can not rely on private enterprise to build, because they want their blood money, and to be able to increase profits as they see fit. This infrastructure needs to be built by governments.