Biofuel as a Renewable Energy: Potential, Technology, and Challenges Towards a Sustainable Energy Transition

Authors

  • Dianisa Khoirum Sandi Department of Mechanical Engineering, Politeknik Negeri Semarang, Semarang 50275, Indonesia
  • Ariefanda Irza Atyanta Department of Mechanical Engineering, Politeknik Negeri Semarang, Semarang 50275, Indonesia
  • Maisa Linta Fifalah Department of Mechanical Engineering, Politeknik Negeri Semarang, Semarang 50275, Indonesia
  • Fika Ariza Rizqi Department of Mechanical Engineering, Politeknik Negeri Semarang, Semarang 50275, Indonesia

DOI:

https://doi.org/10.32497/eksergi.v21i03.7115

Keywords:

Biofuel, Renewable Energy, Biodiesel, Bioethanol, Microalgae, Indonesian Energy Policy

Abstract

Biofuel is a promising renewable energy alternative to reduce dependence on fossil fuels and lower greenhouse gas emissions. This article presents a comprehensive overview of biofuel classification (generation I–IV and physical forms), production technologies (fermentation, transesterification, gasification, pyrolysis), and the applications of bioethanol, biodiesel, and biogas in the transportation, industrial, and power generation sectors. Energy efficiency and environmental impact analyses are conducted using a life cycle assessment (LCA) approach, while national energy policies are examined in the Indonesian context, including the mandatory blending program (B30–B50) and sustainability strategies. While biofuels have significant potential, challenges such as production efficiency, land conflicts, and regulatory consistency need to be addressed for biofuels to truly contribute to the national energy transition

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Published

2025-09-26