Algae can grow preferably in open ponds over closed bioreactors. Algal ponds are generally shallow to ensure the penetration of light into the culture; they are kept continuously mixed by gentle stirring. Growth of microalgae requires an abundance of solar radiation on a wide range of temperatures, therefore, large-scale open culture should be sited where both light and temperature permit growth outdoor. The algae "feed" comes from the supply of CO2. Feed of CO2 is the biggest cost item in the long run of algal cultivation.
Seambiotic cultivates a few selected speices of marine autotrophic microalgae with high content of lipids and carbohydrates as equivilant to the production of bio-diesel and bio-ethanol.
