>> the relatively low yields of oil crops >> ranging from 1,500 kg/ha for sunflower to >> about 2,700 kg/ha for soybeans; sunflower >> averages 25.5% oil, whereas soybeans average 18% oil. > Maybe the yields are slightly better with Jatropha (India) and Palm > Oil (Malaysia): > http://www.hareda.gov.in/bioenergy.htm The first project on that page is a positive one ! :-) Producing Methane "Gobar Gas" from "night soil" (animal and human excrement) converts Methane, which is a very high GW coefficient gas, to CO2, with a much lower GW coefficient and along the way provides energy and employment and more. Regardless of the merit of the GW case, odds are that the "carbon credits" alone of such a poject may make it worthwhile. Without use of this feedstock the MEthane would be released to atmosphere. Making use of cattle excrement in India is a substantial potential gain due to the cattle's otherwise potential utilisation. > I am in talks with an institute here in India for collaborating on > low > cost biodiesel production systems/techniques design from Jatropha. > http://www.jatrophaworld.org/ Jatropha does look like a useful plant for extracting bio energy from very low productivity land. It would be interesting to know what if any other crops it competes with and whether its promotion will affect food production in any way. Russell -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist