Vijay Ramamurthi, Pooja6; Cristina Fernandes, Maria6; Nielsen, Per Sieverts1; Pedro Nunes, Clemente6
1 Department of Management Engineering, Technical University of Denmark2 Systems Analysis, Department of Management Engineering, Technical University of Denmark3 DTU Climate Centre, Systems Analysis, Department of Management Engineering, Technical University of Denmark4 Energy Systems Analysis, Systems Analysis, Department of Management Engineering, Technical University of Denmark5 Universidade de Lisboa6 Universidade de Lisboa
This study explores the techno-economic potential of rice residues as a bioenergy resource to meet Ghana’s energy demands. Major rice growing regions of Ghana have 70–90% of residues available for bioenergy production. To ensure cost-effective biomass logistics, a thorough cost analysis was made for two bioenergy routes. Logistics costs for a 5MWe straw combustion plant were 39.01, 47.52 and 47.89USD/t for Northern, Ashanti and Volta regions respectively. Logistics cost for a 0.25MWe husk gasification plant (with roundtrip distance 10km) was 2.64USD/t in all regions. Capital cost (66–72%) contributes significantly to total logistics costs of straw, however for husk logistics, staff (40%) and operation and maintenance costs (46%) dominate. Baling is the major processing logistic cost for straw, contributing to 46–48% of total costs. Scale of straw unit does not have a large impact on logistic costs. Transport distance of husks has considerable impact on logistic costs.