NDLI: Assessing Options for Electricity Generation from Biomass on a Life Cycle Basis: Environmental and Economic Evaluation

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Assessing Options for Electricity Generation from Biomass on a Life Cycle Basis: Environmental and Economic Evaluation

Content Provider	Springer Nature Link
Author	Jeswani, Harish Kumar Gujba, Haruna Azapagic, Adisa
Copyright Year	2010
Abstract	Co-firing biomass with coal is being increasingly seen in the EU region as an option that could contribute not only towards reaching the Kyoto targets on greenhouse gas emissions but also towards compliance with the EU directives on renewable energy and large combustion plants. Perennial grasses, short rotation coppice, seasonal agricultural residues and waste forestry wood are all considered as viable alternatives. However, although the use of biomass for electricity generation could help reduce direct emissions of pollutants generated during combustion of coal, including carbon dioxide, sulphur dioxide and nitrogen oxides, the whole life cycle implications of using biomass are less clear. This paper uses a life cycle approach to evaluate the environmental impacts and economic costs of co-firing with coal three types of biomass: miscanthus, willow and waste forest wood. Both direct combustion and gasification of biomass are considered. The results of life cycle assessment indicate that all biomass options lead to a substantial reduction in the environmental impacts compared to the coal-only power generation. Overall, use of waste wood appears to be environmentally the most sustainable option. In comparison to direct combustion, biomass gasification has higher global warming potential due to the higher consumption of biomass and energy for gasification. The results of the life cycle economic costing show that electricity from biomass is economically less attractive than from coal. Direct firing is two times more expensive than coal and gasification up to three times. Therefore, while attractive from the environmental point of view, biomass appears currently to be less sustainable economically.
Starting Page	33
Ending Page	42
Page Count	10
File Format	PDF
ISSN	18772641
Journal	Waste and Biomass Valorization
Volume Number	2
Issue Number	1
e-ISSN	1877265X
Language	English
Publisher	Springer Netherlands
Publisher Date	2010-12-16
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Biomass Climate change Electricity generation Economic assessment Life cycle assessment Environmental Engineering/Biotechnology Waste Management/Waste Technology Industrial Pollution Prevention Renewable and Green Energy Environment Engineering
Content Type	Text
Resource Type	Article
Subject	Waste Management and Disposal Environmental Engineering Renewable Energy, Sustainability and the Environment

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