Why only hydrogen is regarded as fuel of future and not other elements?

Question

I have basic idea of working of hydrogen fuel cell but why just hydrogen? Isn’t there any better or maybe cheaper alternative?
(I know it’s bit complex for but I would appreciate your answers)

In: 346

Answer 1

Because you have the sun for energy and entire oceans of water for electrolysis. The rest is engineering hydrogen storage, making them cost effective, combating inertia, and resisting lobbying by Big Oil and Big Gas.