well, the reason i thought biodiesel didn't stand a chance was that I wasn't aware of a source that was roughly 50% fuel. this algae is 50% oil, which makes it the most likely canidate for mass volumes of biodiesel. Soy is up there but not as good, and everything else is just not worth it for mass volume. meaning the amount of land and energy going in, doesn't come close to standard fuel costs.