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I just think of hydrogen cars as electric cars with a competing battery technology. I think li-ion batteries have just come a longer way in energy density, life
by hotpotamus 4y ago
I just think of hydrogen cars as electric cars with a competing battery technology. I think li-ion batteries have just come a longer way in energy density, lifecycle, and charging speed than anyone expected 20 years ago.
- zionic 4y agoHydrogen is an extremely inefficient (200-300% the energy waste of an EV) battery that’s notoriously difficult to handle, contain, and transport safely. Unless we’re mining gas giants hydrogen is not a fuel source, so you have to immediately toss 40-50% of the energy you produce to create it. You lose a ton then transporting it to its point of consumption, and even then converting that (wastefully) stored energy to kinetic energy is STILL less efficient than an EV. Instead, all of that energy used to make hydrogen could have been sent via the grid at 90-95% efficiency to an EV that will store and convert that energy to motion at 85-90% efficiency. A hydrogen economy means tens of PWH of waste energy vs a pure EV economy. The only reason you’d want hydrogen is if you’ve invested trillions in the oil industry and hope to repurpose that infrastructure.