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Table 7 Investment costs by sector of the biorefinery, internal rate of return and net present value

From: Bioelectricity versus bioethanol from sugarcane bagasse: is it worth being flexible?

Sector Cost (106 USD)
  BioEE BioEth Flex
Sugarcane reception, preparation and milling 38.5 38.5 38.5
Combined heat and power plant 50.2 42.9 50.2
Fermentation, distillation and tankage 30.8 35.4 35.4
Sugarcane juice treatment 23.1 23.1 23.1
Piping, general tankage and valves 15.4 15.4 15.4
Licenses, project and ground leveling 7.7 7.7 7.7
2G (pre-treatment, hydrolysis and C5 fermentation) 0 9.6 9.6
Total 165.8 172.7 180.0
IRR * 7.6% 8.3% 8.0%
NPV (10 6 USD) * -34.5 -30.0 -41.8
  1. *for an ethanol price of 513.7 USD/m3.