Comment Re:All Biofuels are a crock.. (Score 3, Insightful) 238
The problem here is a question of energy STORAGE not generation. Until we have better batteries, or some other form of storage, that are comparable to hydrocarbon storage roof top solar will still not be as practical for a lot of transportation needs.
Mind you I'm not saying this is a great idea, especially if beats require "quality" arable land. But if by chance they are viable on land that is not great for other, edible, crops, then it might not be such a horrible idea. IIRC that is why everyone is/was so enthralled with switch-grass.
We need something a bit more sustainable and more carbon neutral to bridge the gap till we get a suitably dense storage medium for automotive use.