Hydrogen infrastructure in the right places is key to a cleaner, cheaper energy future. ARENA November 21, 2019 Enough ambition (and hydrogen) could get Australia to 200% renewable energy Scott Hamilton, The University of Melbourne; Changlong Wang, The University of Melbourne; Falko Ueckerdt, Potsdam Institute for Climate Impact Research, and Roger Dargaville, Monash University Australia can become a renewable energy exporting superpower, but timidity won’t get us there.