ponds and horizontal tubular systems are discussed in Sections
5.1 and 5.2. Sections 5.3 and 5.4 thereafter discuss the energy consumption
or efficiency and costs of micro-algae harvesting and conversion
to bio-energy respectively. Overall results for production
costs and energy consumption ratios for the complete production
chain of heat, fuels and electricity are shown in Section 5.5. Finally,
Section 6 describes the conclusions and discussion of this research.