The thermodynamics dont make sense.
You would need vastly huge solar arrays to make enough electricity to separate enough hydrogen for any meaningful quantities. The question is then, what and how much energy was used to make the solar panels?
This quote is also a little worrying:
"We've tried to resist placing a cost per kilowatt-hour on this because it would be meaningless at this point," said Peter Arnold, Chewonki's project director."
Hmmm?
Nuclear is the way to go in my opinion.
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