- Hydrogen Should Be Focused On Cement And Steel, Not Cars. In an ideal world replete with surplus renewable energy, maybe hydrogen has a future because then its inefficiency is negated by its convenience. But we aren’t in that situation right now, won’t be for decades, and might never be. https://www.forbes.com/sites/jamesmorris/2021/06/30/hydrogen-should-be-focused-on-cement-and-steel-not-cars/?sh=30017abf62f6 15 comments energy