Australia is now feeling the effects of a global fuel shock in its own transport and gas markets. Petrol and diesel prices have jumped. The Commonwealth has had to respond. The east coast gas market is tightening again ahead of winter. That is a sensible time to take another look at the energy options available to Australia, especially for uses that still need molecules, heat or fuel flexibility rather than electricity alone.
This is not to say every part of the energy system is under the same pressure, or that biomethane has suddenly become the leading alternative.