From E20 Ambition to Sustainable Implementation: Prospects, Structural Challenges and Strategic Pathways for Sugarcane-Based Bioethanol Development in Indonesia

Abstract

Indonesia's ambition to introduce gasoline containing 20% bioethanol (E20) by approximately 2028 represents an important opportunity to diversify transportation fuels, strengthen domestic energy security, and accelerate agricultural industrialisation.  Nevertheless, the feasibility and sustainability of this initiative depend on interconnected agricultural, technological, economic,  environmental, and institutional conditions. This article critically examines the prospects and challenges of E20 implementation  through a qualitative literature review of contemporary scientific publications from 2020–2026, supplemented by Indonesian policy 
documents. The analysis integrates energy-transition theory, sustainable bioeconomy perspectives, supply-chain management, lifecycle assessment, and institutional governance. Eight thematic dimensions are identified: energy security, feedstock availability, industrial readiness, automotive compatibility, economic viability, environmental sustainability, social inclusion, and policy coordination. The synthesis suggests that sugarcane-based ethanol could support gasoline substitution and rural value creation, but extensive feedstock requirements, competition with food production, industrial financing, land-use impacts, water consumption, and vehicle compatibility present substantial implementation challenges. International experience demonstrates the importance of diversified feedstocks, integrated biorefineries, transparent pricing, and enforceable sustainability safeguards. The article proposes an Integrated E20 Implementation Readiness and Sustainability Framework and a phased, stage-gated implementation roadmap. Successful implementation requires coordinated agricultural productivity improvements, certified fuel infrastructure, vehicle testing, inclusive investment arrangements, and lifecycle-based environmental monitoring. E20 should consequently be pursued as one component of Indonesia's broader sustainable transportation transition rather than as an isolated fuel-blending mandate.