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this post was submitted on 11 Feb 2024
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The problem we have is energy density. Gasoline is pretty damn dense energy-wise. Storing 20-30 gallons of gas in a tank That's easy and safe to refill is hard to replace.
Lithium ion and lithium iron phosphate batteries are slow to refill.
Hydrogen is kind of neat. You can make it from splitting water with solar or nuclear. It's also a byproduct of the oil industry. And you can fill a tanker up or even an entire train and move fuck ton of hydrogen from one place to another. You can pipe it, people can generated for themselves and get a byproduct of pure oxygen.
But alas, it's still hydrogen. Give it access to the air in a little bit of fire and it makes a big boom. The infrastructure is very expensive to build out, and we're not swimming so much and renewables then it makes sense to bottle it up and sell it to people.
It can make sense for limited uses like cross country trucking (or maybe airlines) where battery will probably never have the range and you live and die by the schedule and refuel stops need to be relatively quick. Refilling semis at a limited number of truck stops with hydrogen stations can be useful if you can also get non petro-derived hydrogen. But for soccer moms and commuters it makes zero sense. Just charge smaller batteries at home and work and have a good interstate charging network for longer trips. We just need to normalize taking breaks on a road trip. It’ll help make more relaxing drives anyway and people already drive angry.
I'd just as soon see the majority of long haul trucking be replaced by electrified rail.
Likewise with a big chunk of the airline industry.
Oh absolutely. Rail is a better option for almost everything. However, some stuff will always need trucking (oversized, dangerous cargo, rural, etc.) but also the US is currently so overrdependent on roads it’s at least an intermediate tool.
I really wanted to see solar to hydrogen storage and then a hybrid fuel cell plus battery powerwall. Use all the solar that you get in the morning and not have to burn a battery pack out every 5 to 10 years.
You could do the same with the car, throw a small fuel cell plant in there a couple liters of hydrogen and a decent but not too big battery pack. When you park your car at work or at home it just sits there and slowly charges when you're not paying any attention. If it gets into a true low state or you know you're going to need it the next day to go further you can plug it into your home electric. It's just absolutely reasonable to put enough solar on a lot of houses that you could be completely sufficient from the grid.