One of the problems with current methods for producing biodiesel from algae oil is the processing cost, and the New York researchers say their innovative process is at least 40 percent cheaper than that of others now being used. (sciencecodex.com)
The same was true for producing biodiesel using soybeans and sunflower, however, the energy cost for producing soybean biodiesel was only slightly negative compared with ethanol production. (wattsupwiththat.com)
Feedstocks - There were a total of 953 million pounds of feedstocks used to produce biodiesel in February 2018. (eia.gov)