After grey, blue, and green: turquoise hydrogen the horse to bet on?
It’s getting colorful but complicated. We already know grey hydrogen, the least environmentally friendly form, as it still generates CO2 when produced from gas, and blue hydrogen, where the CO2 is captured and stored. There is ‘green’ hydrogen, generated mainly by electrolysis using renewable electricity from solar or wind energy. But why not consider ‘turquoise’