which is the best renewable energy source? solar,wind,hydro,geothermal,o tech,tidal, and hydrogen energy?

comparing in all aspects which energy is best.i feel hydrogen[H2] energy is best of all. i mean in storage capability,transportation, multi purpose usage ect. pls tell me which is best of all.i need to give a ppt on renewable energy source in a competition. i need a good topic.pls suggest me. thanku

68 Views|Posted 2012-02-19 23:47:58

Asked by Mahesh

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Aru Chopra | Guide-Level 11

2012-02-20 10:50:05

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