The Energy Report: With so many types of products, can biofuels be considered a single industry? Ian Gilson: Biofuels is a name we give to many products from several processes that produce fuels based on sources other than coal and oil. As such, biofuels are really many industries. The two major industries are ethanol and biodiesel. Others include fuel from algae and alternative cellulosic materials. Ethanol and biodiesel are sold into two different industries and serve different markets. Ethanol is mixed with gasoline and biodiesel is mixed with diesel fuel. However, biofuels in … [visit site to read . . . → Read More: Enzymes and Algae May Spur a Biofuel Boom: Ian Gilson