Green hydrogen: The scaling challenge

Nice article overall. Not sure about the idea of using hydrogen to replace fossil-fuel powered usage. Hydrogen as a fuel has significant economic and thermodynamic challenges that scale can’t overcome. “Fossil-derived hydrogen is very low-cost; therefore, lowering the cost of green hydrogen—both via innovation and subsidies—is a top priority. For newer hydrogen applications, the cost pressure is even greater. For green hydrogen to compete with fossil-derived hydrogen and replace fossil-fuel-powered uses, scale is of the essence. Achieving scale in green hydrogen production will require subsidies and policy support, at least in the early years.”