I'm looking for help with selecting an energy crop (or crops...) for a sustainable community in Costa Rica. Crops considered so far include castor bean and jatropha curcas (for biodiesel), and jerusalem artichoke, sweet sorghum and giant cassava (for biogas).
Any pointers to information on optimum temperature, water and nutrient requirements, and yield would be greatly appreciated. (What led me here was seeing that LocalHarvest sells sorghum seeds.)
Climate data, average annual temperature and precip for the location are available at