A few billion time of manipulating major LIFE resource molecule per hour (or daily)? Even though hydrogen power is such a nice green resource, I dislike the idea of manipulating (not just utilizing) such major resources that all life depends on (cannot think of an exception). I cringe imagining the end of humanity is because our excessive use of such green energy (that's probably happened to Martian).
LOLz, I just contradict my tears of joy. But, just to clarify, it is still tears of joy because they came from teenage girls.