Comment Biodiesel hybrids are the only future (Score 2, Informative) 462
Hydrogen has no future. You need more energy to create it than you get out of it. Its "energy return on investment" (EROI) is negative. Biodiesel has a positive EROI.
Moreover, as a carrier, hydrogen has all kinds of problems (safety, you need a major overhaul of the entire infrastructure, entirely new cars, etc...).
Hybrid diesel and hybrid biodiesel cars are the only real alternative.
In 2003, MIT's Lab for Energy and the Environment made a study comparing the entire lifecycle for idealized automotive drive systems (internal combustion, hybrids, fuel cells). The results were very clear:
-straight gasoline scores worst of all
-gasoline hybrids score far worse than diesel hybrids
-diesel hybrids are nearly just as good as the best fuel cell systems.
The study didn't include biodiesel in hybrid diesel cars, but any laymen can dedude that it is the technology of the future.
You have to look at the entire lifecycle, when comparing technologies. And hydrogen/fuel cells are not efficient.
MIT's study can be found here (pdf): http://lfee.mit.edu/publications/PDF/LFEE_2003-001 _RP.pdf
Moreover, as a carrier, hydrogen has all kinds of problems (safety, you need a major overhaul of the entire infrastructure, entirely new cars, etc...).
Hybrid diesel and hybrid biodiesel cars are the only real alternative.
In 2003, MIT's Lab for Energy and the Environment made a study comparing the entire lifecycle for idealized automotive drive systems (internal combustion, hybrids, fuel cells). The results were very clear:
-straight gasoline scores worst of all
-gasoline hybrids score far worse than diesel hybrids
-diesel hybrids are nearly just as good as the best fuel cell systems.
The study didn't include biodiesel in hybrid diesel cars, but any laymen can dedude that it is the technology of the future.
You have to look at the entire lifecycle, when comparing technologies. And hydrogen/fuel cells are not efficient.
MIT's study can be found here (pdf): http://lfee.mit.edu/publications/PDF/LFEE_2003-00
