Change in number of candidate points
The proposed model only considered the north of Thailand. However, in order to investigate the biofuel supply chain in greater detail, a higher number of candidate points is required. The proposed mathematical formulation does not need to be modified but it is necessary to obtain more data which could be a possible area of future work.
Other energy production technologies
The proposed model only took into account the existing cost of the most usual energy production technologies that are currently available. However, the costs of alternative technologies in the biofuel supply chain such as pyrolysis or the direct combustion biomass based power plant could be added to the model.
Availability of resources
The costs of available resources are most likely to vary over time. For example, the cost of rice husk is certain to increase over time as demand increase. Other types of biomass such as palm shell, cassava root or rubber wood sawdust could be used in the model. However, the technology type would have to change according to the feedstock type.
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