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tw · 12-10-2016, 11:53 AM

And again from thermodynamics, for every ten units of energy to make and store hydrogen, only one unit of energy does productive work.

What creates that hydrogen? Burning oil, coal, etc. Why is it clean?

Hydrogen as a fuel is only a temporary energy storage medium. It is not an energy source. And it must be used quickly because even all pipes and tanks constantly leak hydrogen.

For transportation, nothing has the energy per weight ratio that petroleum provides. That is why research into lithium (stifled since the 1960s) is now occurring in places other than Japan.

12-10-2016, 11:53 AM	#229
tw Read? I only know how to write. Join Date: Jan 2001 Posts: 11,933	And again from thermodynamics, for every ten units of energy to make and store hydrogen, only one unit of energy does productive work. What creates that hydrogen? Burning oil, coal, etc. Why is it clean? Hydrogen as a fuel is only a temporary energy storage medium. It is not an energy source. And it must be used quickly because even all pipes and tanks constantly leak hydrogen. For transportation, nothing has the energy per weight ratio that petroleum provides. That is why research into lithium (stifled since the 1960s) is now occurring in places other than Japan. Last edited by tw; 12-10-2016 at 11:58 AM.