Yet another green hydrogen start-up cropped up on our radar this week, promising cost-competitive production with fossil-fuel methods by 2024. While we can’t be certain that Hydrogen Systems Australia (HSA) will fulfill this ambition – in the same way that we can’t for any of its competitors – the growing number of those that believe this benchmark is achievable has made it almost certain that at least one of them will. The Melbourne-based start-up claims to have invented a new type of electrolyzer, which can cut the cost of green hydrogen production by a factor of three, with intentions to reach just $1.50 per kilogram by 2024. This marks a three-fold improvement in the production efficiency of conventional electrolyzers on…