Commentary
Andrew “Twiggy” Forrest, an Australian businessman, has made headlines frequently in the last two years, raving about the merits of green hydrogen and declaiming with equally unrestrained fervour the ridiculousness of blue hydrogen.
For the most part, it seems to be a one-man crusade—the rest of the industry seems happy with both blue and green and perhaps even pink or turquoise. And for everyday Australians, the idea that hydrogen comes in various colours is a completely foreign concept.
First, let’s provide some definitions. The “colour” scheme for hydrogen relates to the process by which it was made.
Green hydrogen is made by separating water (H2O) into oxygen (O2) and hydrogen (H2), using electricity that must come from a renewable source. As such, Australia only has a couple of green hydrogen pilot plants that produce a mere drop in the ocean of useable hydrogen….