Techno-economic evaluation of 2nd generation bioethanol production from sugar cane bagasse and leaves integrated with the sugar-based ethanol process

Table 3 Cost items and MESP for the Reference scenario (1G ethanol) and Scenario A (Base case)

	Reference scenario (1G ethanol)	Scenario A (1G+2G ethanol)	2G ethanol ^a for Scenario A
Ethanol, L/dry ton SC	284	329	45
Power production, kWh/dry ton SC	364	185	-179
Cost items, US$/L
Sugar cane	0.230	0.198	0.000
Enzymes	0.000	0.045	0.341
Acid	0.000	0.005	0.080
Base	0.003	0.003	0.020
Water consumption	0.003	0.008	0.045
Other raw materials	0.008	0.005	0.000
Labour, maintenance, insurance	0.040	0.055	0.148
Electricity export/opportunity cost	-0.111	-0.050	0.357
Vinasse sales	0.000	0.000	-0.003
Capital cost	0.095	0.156	0.560
Minimum Ethanol Selling Price	0.264	0.428	1.548

^a2G ethanol and power production are obtained as the difference of Scenario A value and the Reference scenario (1G) value.The cost items for 2G ethanol are calculated according to Equation.

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