I think we are really close to a break through in using hydrogen. I know people have been saying this for years but there are some very exciting things happening now. I would really love to convert 'Mr. Piggles' my SUV tow vehicle to run on hydrogen.
I've heard that a company is close to getting a system to market where you could create hydrogen at home and use it to power your car. It would be stored in a liquid form that could be sold in current gas station technology. It sounds exciting. I read an article about it that I might post more about if I can find it again.
That sounds very interesting. The cool thing about hydrogen of course is it is so abundant. The splitting is not hard. I have done it at home with a phone charger. The devil in the details was always the storage coz the atom of hydrogen is so small it can leak from anything. An example is how those metallic balloons leak helium over time.
I remember so much talk and so much promise about fuel cells back in the 90's. I hope we can see mass adoption before too long.