Some MIT scientists may have some practical science for separating H2O into its constituents, then reconstituting them - all for energy release and storage.
http://web.mit.edu/newsoffice/2008/oxygen-0731.htmlClick on the video and read - it's pretty short. ambo
PS - here is a link reminding of a recently posted alternative bio-green energy technology
http://www.valcent.net/i/misc/Vertigro/index.html
Ambo Suno