The SA government’s $600 million hydrogen plant proposal has been plunged into doubt, with the premier indicating the money could be spent elsewhere in Whyalla if the owner of the city’s steelworks does not invest in upgrading the site. The SA government’s $600 million hydrogen plant proposal has been plunged into doubt, with the premier indicating the money could be spent elsewhere in Whyalla if the owner of the city’s steelworks does not invest in upgrading the site. Hydrogen Fuel, Steel Latest business news