While hydrogen fuel cells were once hyped for use in personal transportation, hydrogen is now being marketed as an energy panacea and a vital part of a 100% renewables grid. Most of the world's hydrogen is currently produced through steam methane reformation and is used as a very carbon-intensive feedstock for ammonia for fertilizer and other chemical industry applications. Decarbonizing this sector is already a monumental task. 
Green hydrogen produced by wind and solar-powered electrolysis is now being proposed as a solution to the problem of renewable intermittency. Is this viable? What are the challenges? 
I am joined by James Fleay, an Australian engineer and project manager who has worked in the power and oil and gas sectors. He has also been a solar industry investor and is the founder of DUNE, Down Under Nuclear Energy