A new method of green building design is to produce a biofuel at your own home. Previously, biofuels had to be made at a larger biofuel processing facility such as a corn to ethanol plant. While some individuals had converted their automobiles to run on collected cooking grease, previously there were not commercially available biofuel processing units sized for domestic use. Recently, however, this has changed with a number of companies selling domestically sized biofuel conversion units. Above is a photo of such a domestic biofuel conversion unit to illustrate how compact in size they can be. Also, scientists are experimenting with such novel ways as growing a biofuel in vertical algae tanks. As a consequence, it is now possible to build sustainable green buildings that include units to produce biofuel - so one does not have to drive to the gas station to fill up one's automobile!
