Several companies have demonstrated generating copious amounts of hydrogen from algae - much more efficient than converting sunlight to electricity than perform

Several companies have demonstrated generating copious amounts of hydrogen from algae - much more efficient than converting sunlight to electricity than performing electrolysis. I've seen even more alternate ways of generating hydrogen over the last 20 years - lots of thought around production; without demand it isn't worth pursuing/refining the processes to do so. Production can be distributed - no need to ship fuel or electricity over vast distances either. Charging batteries isn't without loss either. Most importantly, vehicle refueling speed is on par with liquid chemical energy (i.e. gas or diesel) which is the single biggest problem with batteries. And we haven't had EVs long enough to where people are needing to replace battery packs in volume. That's going to be fun when that day inevitably starts to roll around. I used to be a big hydrogen skeptic - but the more I have looked at it, the more I think we could deploy infrastructure for hydrogen faster than battery tech can improve. There aren't many combinations left to try, or to try to make practical for high volume production and that would be safe enough for universal adoption that will produce any significant gains. Maybe with liquid electrolytes - but those introduce new complexity/safety issues. I'm a huge fan of "liquid batteries" for stationary storage capacity - think Tesla powerwall but on an industrial neighborhood/town scale.