JBII feedstock cost -- $0/ton JBII electricity cost -- near $0 JBII natural gas cost -- near $0
The Energy Information Administration (EIA) considers feedstock costs to be free. They only use the actual payment used to acquire the feedstock (that is, purchase it from a supplier) in their calculation models and have pegged it to be the single largest cost for other process -- a cost that doesn't even exist for JBII:
"The Energy Information Administration (EIA) uses a process-costing approach to model the impacts of net feedstock production costs plus capital and operating costs. The feedstock cost of the oil or grease is the largest single component of biodiesel production costs." "The biodiesel production process uses, for each gallon, 0.083 kilowatthours of electricity and 38,300 British thermal units (Btu) of natural gas" http://www.eia.doe.gov/oiaf/analysispaper/biodiesel
Capital and operating costs are separate from feedstock costs.
Yellow Grease feedstock cost -- $600/ton White Grease feedstock cost -- $800/ton Soybean oil feedstock cost -- $1000/ton Biodiesel energy costs -- High http://www.ams.usda.gov/mnreports/lswagenergy.pdf
Now take JBII costs:
JBII feedstock cost -- $0/ton JBII electricity cost -- near $0 JBII natural gas cost -- near $0