Journal
BIORESOURCE TECHNOLOGY
Volume 102, Issue 2, Pages 437-451Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2010.08.010
Keywords
Bioenergy; LCA; Biofuels; Bioelectricity; Bioheat
Funding
- Norwegian research council through the Bio-energy Innovation Centre (CenBio)
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The use of different input data, functional units, allocation methods, reference systems and other assumptions complicates comparisons of LCA bioenergy studies. In addition, uncertainties and use of specific local factors for indirect effects (like land-use change and N-based soil emissions) may give rise to wide ranges of final results. In order to investigate how these key issues have been addressed so far, this work performs a review of the recent bioenergy LCA literature. The abundance of studies dealing with the different biomass resources, conversion technologies, products and environmental impact categories is summarized and discussed. Afterwards, a qualitative interpretation of the LCA results is depicted, focusing on energy balance, GHG balance and other impact categories. With the exception of a few studies, most LCAs found a significant net reduction in GHG emissions and fossil energy consumption when bioenergy replaces fossil energy. (C) 2010 Elsevier Ltd. All rights reserved.
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