<p>This study explores the potential of plant microbial fuel cells (PMFCs) for generating sustainable bioelectricity by utilizing <i>Delonix regia</i> fruit pods as anode materials. PMFCs leverage plant processes, such as photosynthesis, to release organic carbon into the soil, which is then broken down by microorganisms in the rhizosphere to produce free electrons, protons, and carbon dioxide. These processes can generate bioelectricity by using the redox potential gradient. The study focuses on the advantages of <i>Delonix regia</i> fruit pods due to their biodegradability, high surface area, carbon content, and porous structure, which enhance microbial activity and electron transfer, boosting the energy output of PMFCs. The PMFC utilizing the developed anode attained a peak power density of 230 mW/m², indicating a substantial enhancement relative to traditional carbon rod anodes (180 mW/m²). Additionally, using these pods as a biomass material supports waste management and offers a cost-effective, renewable alternative to traditional anodes. Nevertheless, some challenges remain for future research such as optimizing microbial community interactions and ensuring system stability under various environmental conditions. This research highlights the viability of agricultural waste materials, like <i>Delonix regia</i> fruit pods, as a sustainable solution for advancing PMFC technology, addressing both energy and environmental concerns.</p> Graphical Abstract <p></p>