Because of large diversity of algae species it is important to focus on production of the one which characteristic is
the most valuable for our purpose. From point of view of biogas production efficiency the most valuable substrate is
fat – over 770 cubic meters of biomethane per one tone of organic dry matter (ODM). Sugars reach much smaller
yield – 390 cubic meters. Biomethane efficiency of protein is between those two. Another aspect we have to pay
attention is proliferation speed. It has to be calculated which algae are going to produce more biogas – fast growing
algae with high concentration of sugars or the one with oil growing slower.