I'm looking for a power source to travel long distances, and in this I saw that drones powered by hydrogen cells are emerging. I looked for it but the available information I found is very incomplete and inconclusive.
I would like to know where i can buy or how I do that and how to identify the efficiency or cost-benefit of a hydrogen cell to see if it pays to use it in projects.
Innovative Fuel Cell Plus Standard DC Modules Yield Compact, Long-Flying Drone
Any reference is valid!
