ABSTRACT
This chapter focuses on renewable power generation approaches based on the coupling of photosynthetic bioreactors. In PhFCs, oxidation of organic compounds results in electrons production by photosynthetic bacteria. PhFC research has allowed the generation of a wide variety of different system configurations, the use of photosynthetic mechanism, and respective organisms. Oxygenic photosynthetic species commence charge separation results in delivering electrons and protons in a photophosphorylation cascade. Photosynthetic microbial fuel cell research started with cyanobacterial species of Synechocystis and Anabaena by documenting the increment in power output in light and decrement in power during the dark. Photosynthetic organisms use carbon dioxide as carbon source, and photosynthetic reactions involve the reduction of this molecule. Oxygen generation in photosynthetic reactions represents an interesting characteristic in the cathode process, because mechanic aeration requires vast quantities of energy. Illumination is a salient feature for growth of photosynthetic microorganisms.
