> Please explain how hydrogen can be stored easily.
That's the real question. Current technology makes storage pretty inefficient in just about every way. If Fiat is really working on a H2 powered tractor (not just marketing), I would guess they will take the same approach BMW has with their hydrogen 7-series car. It has a super-cooled storage tank that will store either liquid hydrogen or gaseous. It burns the hydrogen in a standard IC engine (not a fuel cell) so the car also has a separate gasoline tank which can be used instead of hydrogen.
If I had to guess at the future though, I would say that future hydrogen tanks will resemble batteries. Someone will eventually discover a solid material that has the right amount and size of pours in it to "dissolve" a high density of hydrogen gas. These bricks will be slow to charge with hydrogen and slow to release hydrogen gas and will probably be removeable for re-fueling. Trying to find this material is where most of the research work is going on right now.
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Today's Featured Article - Earthmaster Project Progress Just a little update on my Earthmaster......it's back from the dead! I pulled the head, and soaked the stuck valves with mystery oil overnight, re-installed the head, and bingo, the compression returned. But alas, my carb foiled me again, it would fire a second then flood out. After numerous dead ends for a replacement carb, I went to work fixing mine.I soldered new floats on the float arm, they came from an old motorcycle carb, replaced the packing on the throttle shaft with o-rings, cut new ga
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