The potential of agricultural and livestock wastes as a source of biogas in Vietnam: Energetic, economic and environmental evaluation

Thanh Hung Nguyen, Quang-Van Doan, Ansar Khan, Ahmed Derdouri, Prashant Anand and Dev Niyogi

Renewable and Sustainable Energy Reviews, 2024, vol. 199, issue C

Abstract: Many economies, including Vietnam, have substantial potential for producing energy from agricultural waste. However, the analysis of using agricultural waste as a renewable energy source and its associated economic and environmental benefits remain unclear. This study aims to a) estimate trends in greenhouse gas (GHG) emissions from livestock and crop residue burning; b) evaluate the environmental benefits of using biogas in substitution for coal, wood, and liquefied petroleum gas (LPG) under various scenarios; c) assess the economic viability of a household-scale biodigester, and d) propose recommendations for the effective exploitation and utilization of biogas. GHG emissions were calculated for livestock and crop residue burning (CRB) using activity data and emission factors. The environmental analysis was conducted to understand the role of biogas in reducing GHG by assuming 100 % exportation of biogas in substitution for fuels for electricity and heat generation. The economic benefits were assessed through internal rate of return (IRR), net present value (NPV), payback period, levelized cost of electricity (LCOE), and levelized cost of heat (LCOH). Results indicate that, between 2000 and 2050, CO2-eq emissions will rise from 38.5 to 95.2 Mt. Environmental analysis shows that replacing coal or wood with biogas can bring more benefits than LPG, in reducing GHG emissions by 68.2 and 67.9 Mt CO2-eq in 2020 and by 148.4 and 147.9 Mt CO2-eq by 2050. Economic analysis shows that investment in biodigesters is most viable when replacing LPG with biogas, with NPV = $4878, IRR = 57.2 %, PBP (simple) = 1.7 years, and LCOH = $0.029/kWh.

Keywords: Livestock waste; Crop residue; Renewable energy; Environmental evaluation; Economic evaluation; Policy (search for similar items in EconPapers)
Date: 2024
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S1364032124001631
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:rensus:v:199:y:2024:i:c:s1364032124001631

Ordering information: This journal article can be ordered from
http://www.elsevier.com/wps/find/journaldescription.cws_home/600126/bibliographic
http://www.elsevier. ... 600126/bibliographic

DOI: 10.1016/j.rser.2024.114440

Access Statistics for this article

Renewable and Sustainable Energy Reviews is currently edited by L. Kazmerski

More articles in Renewable and Sustainable Energy Reviews from Elsevier
Bibliographic data for series maintained by Catherine Liu ().