content: Basically this. Hydrogen is a terribly impractical energy storage medium. Inefficient to generate, hugely inefficient to store, tricky to handle. Don't get me wrong, it could be made to work with enough effort. But it's far from our best hope for a fully renewable future. In fact, that's why back in the late 90s, car manufacturers pushed the 'hydrogen economy' meme so hard; they were setting it up as an alternate fuel straw-man so they wouldn't have to deal with electric vehicles.