From INTRODUCTIONPlant-based energy generation is emerging as a new method for harvesting electrical energy from living plants. A team of electrical engineers at the University of Washington had devised a voltage-surge converter for harvesting energy from trees [1]. This development has the potential to provide an unlimited supply of clean energy [2]. These have been extensively studied to generate cleaner, inexhaustible, abundant and environmentally friendly energy. Environmental concern has significantly increased the interest in switching to renewable energy sources [3-6]. The safety problems of fossil fuels not existing in the plant-based energy source. There is always a need to find alternatives that are more environmentally friendly. As a result, researchers take into account photosynthetic processes such as the abundance of solar energy. Researchers have developed a way to manipulate proteins contained in thylakoids and interrupt the path along which electrons flow before they are used to produce sugars [7-8]. Ryu et al. inserted a nanoscale and attempted to probe photosynthesis focusing mainly on energy extraction [8]. Transformation of sunlight into bioelectricity based on the process of photosynthesis in a living plant to observe and understand the kinetics of photosynthesis also discussed by Flexer and Mano [9]. Although electricity production directly from plants is still unpretentious, it is promising and certainly worth exploring further [10]. In the previous work, some basic procedures for collecting weak electricity from living plants which consist of the detail of selection of collector, type of plants and with potential application has been presented [11]. The electrochemical process is beli...... half the paper......n flows to the LFC anode and is converted into electricity. The electrons used for extracellular photosynthetic electrons in the LFC are termed the photosynthetic current (Figure 5). CONCLUSION This paper has established a significant increase in LFC energy production in both harvested current (43%) and harvested power (111%) with natural photosynthesis. The energetic origin of LFC with illumination is believed to take into account both the electrochemical and photosynthesis process. Solar energy captured by living plants and converted into chemical energy can be transferred as an electron flow (photosynthetic current) to the LFC (zinc) anode and as added electrons flow through the external load in the form of electricity. The energy production mechanism of LFCs is modeled based on the principles of electrochemistry and the photosynthesis process.