Vehicles powered by hydrogen fuel cells combine the benefits of battery-powered electric vehicles and internal combustion engines (ICEs). You get the environmental and performance benefits of electricity, with the same refueling convenience as you get with ICE vehicles. But for most of us, hydrogen fuel cells are still mysterious and unattainable. In reality, you can buy one right now. To demonstrate how practical they are, Alfonso Delgado Ollero built a miniature hydrogen fuel cell to power an RC truck.
Hydrogen combines with oxygen in the air to produce water. As it does, it also produces electricity and we can use that electricity to power devices and even vehicles. The only reasons hydrogen fuel cell vehicles aren’t common are that it takes a lot of energy to produce the hydrogen in the first place and the energy density is relatively low. Those practical concerns…