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Different oilseeds can be used for energy production in the form of biodiesel. Energy use efficiency in biobased systems is defined as the ratio of energy output to energy input. Energy use efficiency of oilseeds production varies based on the type of oilseed and location. Some oilseeds such as canola and carinata have relatively low energy use, while the production of sesame requires a higher energy use (Table 3.3). Energy use efficiency of oilseeds production ranges from ~1.5 for sesame to 4.28 for canola.

Experimental studies have been conducted to analyze energy use in biofuels from bio‐based systems. Energy inputs during crop production, transportation, and conversion processes for canola and carinata were estimated based on experimental studies in Spain (Cardone et al. 2003). It was found that energy was mainly used in the oilseed production and transportation steps (Figure 3.3). There are several transportation steps, including transportation of oilseeds from fields to the elevator (local storage), which is mainly done by trucks, transportation from storage facilities to the oil extraction facilities, and delivery of oil to the biorefineries using rail transportation facilities. Energy use for extraction of oil from oilseeds and conversion to biodiesel is low because of the high capacity of industrial facilities at the biorefineries.