Journal
JOURNAL OF CLEANER PRODUCTION
Volume 284, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jclepro.2020.125437
Keywords
Landfill gas to energy technology; Economy; Global warming potential; Acidification potential; Electricity; Urban areas of Africa
Categories
Funding
- Center for Energy and Environmental Policy Research
Ask authors/readers for more resources
Landfilling is one of the cheapest methods of municipal solid waste disposal worldwide, but it also produces greenhouse gases that contribute to global warming. This study focuses on the economic feasibility and environmental impact of landfill gas to energy projects in urban areas of Africa, finding that most countries in Africa have positive net present value for such projects. However, it also highlights the increase in acid gas emissions from electricity generation using landfill gas.
Landfilling is one of the cheapest methods of municipal solid waste disposal worldwide, especially in developing countries. Disposal of municipal solid waste in landfills produce greenhouse gases, such as methane and carbon dioxide, which, if not managed properly, may cause global warming. However, landfill gas could also be a potential source of electricity in areas like Africa, where there is low electricity accessibility. Therefore, this study aims to analyze the economic feasibility and environmental impact of landfill gas to energy project in urban areas of Africa. An economic feasibility analysis was conducted using the net present value and levelized cost of energy methods. Besides, environmental impact analysis was performed using life cycle assessment method. Key findings showed that landfill gas to energy project has positive net present value in all the countries except Sudan, Uganda, Burundi, Tanzania, the Democratic Republic of the Congo, Chad, Guinea, Malawi, and Ethiopia. It was also realized that levelized cost of energy for the project in urban areas of Africa in 2012 was from $0.076/kWh to $0.870/kWh. The environmental impact analysis showed that on the average, landfill gas to electricity project could reduce global warming potential by 72.2%. However, it has been observed that electricity generation from landfill gas could increase acid gas emissions by 8.75%-9.00%. This research will guide investment and decision-making on the environmental sustainability of landfill gas to energy projects in Africa. (C) 2020 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available