Hydrogen is far more energy dense than batteries. For example: for a 800km truck, the difference can be as much as 2 tonnes. https://www.umicore.com/en/newsroom

Hydrogen is far more energy dense than batteries. For example: for a 800km truck, the difference can be as much as 2 tonnes. https://www.umicore.com/en/newsroom/news/fuel-cells-battery-difference/ https://www.umicore.com/en/newsroom/news/fuel-cells-battery-... Also, there are ways of storing hydrogen in metal hydrides at room temperature and pressure. This makes a LOT of sense for people who may want to have an option of buying stored energy - such as those who live in apartments without access to the terraces where solar panels can be deployed. If these metal hydride storage is used similar to how changeable batteries are used, it is conceivable that you could drive up to a place like a fuel station just to change out your metal hydride storage in a matter of a couple of minutes and perhaps even get additional supplementary units packed at the back of the vehicle if they intend to go on a long journey. https://www.frontiersin.org/articles/10.3389/fenrg.2021.6161 https://www.frontiersin.org/articles/10.3389/fenrg.2021.6161... In terms of cost, it is also now possible to use Boron Nitride for storing hydrogen - very cheaply and very safely. https://www.geelongmanufacturingcouncil.com.au/2022/07/innov https://www.geelongmanufacturingcouncil.com.au/2022/07/innov...