True, if we're getting it the traditional way. Fortunately, iron oxide can be reduced using hydrogen. In the article, they conclude that the system cost of shi

True, if we're getting it the traditional way. Fortunately, iron oxide can be reduced using hydrogen. In the article, they conclude that the system cost of shipping iron and iron oxide back and forth from an electrolysis facility (presumably from renewables) is lower than using hydrogen directly as a fuel.