Straight forward answer is energy density needed for shipping and flight. Even if we get super-duper mega battery with 100%+ more kWh/kg in 5-10 years it will t

Straight forward answer is energy density needed for shipping and flight. Even if we get super-duper mega battery with 100%+ more kWh/kg in 5-10 years it will take time to scale it up while hydrogen delivered through synt. fuels is here. It seems that the Danish are betting on it: https://www.energyglobal.com/special-reports/28082020/haldor-topsoe-joins-danish-sustainable-fuel-project/ https://www.energyglobal.com/special-reports/28082020/haldor...