Biogas role in achievement of the sustainable development goals: Evaluation, Challenges, and Guidelines

Background: Biogas is one of the promising renewable energy sources that successfully implemented at domestic and industrial scales. This work presents a preliminary evaluation of the role and contribution of biogas as a sustainable energy source towards achieving the sustainable development goals (SDGs). Methods: This work summarizes the common feedstock and impurities in the biogas as well as the advantages and disadvantages of biogas compared with fossil fuels. Challenges and barriers associated with biogas production in developing and developed countries were elaborated and connected with SDGs. Finally, the relation between the circular economy, biogas, and related SDGs was presented. Significant findings: The biogas has been found to have direct impacts and contributions to 12 out of the 17 SDGs. The main contributions of the biogas come from its ability to increase renewable energy, reduce climate change, enhance the waste management process, and create jobs. A set of 58 indicators was provided as a guideline for the stakeholders within the biogas industry to extend the benefits of the biogas toward the achievement of the SDGs and minimize any possible trade-off. The results of this work will help the different players within the biogas industry to form policy to ensure that biogas contribution to the SDGs is maximized. (C) 2022 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.