Site selection for microalgae farming on an industrial scale in Chile

Abstract

Scientific research and commercial projects into the use of microalgae as a source of energy have increased markedly over the last decade. The economic feasibility and overall sustainability of operations based on farming of microalgae on an industrial scale will largely depend on their geographic location. Criteria concerning selection of sites from which diverse local resources can be optimized have to be also considered. The present study leads the analysis of relevant factors (i.e. natural resources, road infrastructure, geographic characteristics and industrial activities which generate greenhouse gas emissions) that support proper decision-making process for selecting potential areas of large-scale microalgae farming in Chile. Based on an eight-step methodology, ten potential sites were identified as meeting all necessary requisites for the industry across the country. Sites cover 103,600 ha, capable of producing an estimated volume of 1.5 Mm^3 per year of biodiesel, and replacing 17% of the annual diesel consumption in Chile.