Table 2. Inventory Data for Tallow and Used Cooking Oil (UCO) Rendering.

	tallow	UCO, traditional	UCO, settling
feedstock input (kg/kg finished oil)	2.26	1.35	1.35
energy input (MJ/kg finished oil)	7.43	2.36	0.85
natural gas	4.99	2.11	0.76
animal fat	0.98	-	-
electricity	1.46	0.25	0.09
outputs (kg/kg finished oil)
rendered fat/oil	1.00	1.00	1.00
meat bone meal (MBM)	1.04	-	-