Energy Potential of <i>Piper aduncum</i> L. as a Biomass Feedstock for Downdraft Gasification

Abstract Piper aduncum, an invasive alien plant species, presents a promising biomass feedstock for renewable energy applications. This study evaluates its energy potential through gasification in a downdraft gasifier, examining its syngas composition, cold gas efficiency (CGE), and energy conversion efficiency (ECE). Proximate and ultimate analyses determined its fuel properties, while syngas composition provided insights into its energy content and quality. Results showed that Piper aduncum achieved a CGE of 30.30% and an ECE of 5.62%, with syngas composition comprising CO (17.61%), H₂ (21.47%), CH₄ (0.01%), and CO₂ (12.48%). These values highlight its viability as a bioenergy source, demonstrating competitive performance for biomass gasification. Given its high availability in remote areas, Piper aduncum offers a sustainable feedstock for off-grid electrification, presenting an alternative energy source for rural communities. These findings support its potential as a renewable energy solution while addressing ecological concerns associated with its invasive spread.