An economic analysis of biochar production using residues from Eucalypt plantations |
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| Affiliation: | 1. School of Engineering, CREPS, Centre for Renewable Energy and Power Systems, Sandy Bay Campus, Dobson Road, Private Box 65, University of Tasmania, Hobart 7000, Australia;2. Tasmanian Institute of Agriculture, Sandy Bay Campus, Private Box 98, University of Tasmania, Hobart 7000 Australia;3. JSA Consulting Engineers Pty Ltd, Ellerslie House, 119 Sandy Bay Road, Sandy Bay 7005, Australia;4. Forestry Tasmania, 79 Melville Street, Hobart 7000, Australia;1. Institute of Poyang Lake Eco-economics of Jiangxi University of Finance and Economics, Nanchang 330032 China;2. School of International Trade & Regional Studies, Inha University, Incheon 402-751, South Korea;1. Centre for Sustainable Technologies, School of the Built Environment, University of Ulster, Jordanstown BT37 0QB, UK;2. Agri-Food and Biosciences Institute, Belfast BT9 5PX, UK;3. Sir Joseph Swan Centre for Energy Research, Newcastle University, Newcastle Upon Tyne NE1 7RU, UK;1. Division of Systems, Power & Energy, School of Engineering, University of Glasgow, Glasgow, United Kingdom;2. Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore;1. Aquatic Toxicology Laboratory, Environmental Toxicology Group, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, Lucknow 226 001, Uttar Pradesh, India;2. Bioenergy and Energy planning, IIC, ENAC, École polytechnique fédérale de Lausanne (EPFL) Station 18, CH-1015 Lausanne, Switzerland;1. Department of Engineering Systems and Environment, University of Virginia, 351 McCormick Road, P.O. Box 400742, Charlottesville, VA 22904, United States;2. Department of Chemical Engineering, University of Virginia, 102 Engineers’ Way, P.O. Box 400741, Charlottesville, VA 22904, United States;1. Department of Environment and Planning and Centre for Environmental and Marine Studies CESAM, University of Aveiro, Portugal;2. Research Unit in Governance, Competitiveness and Public Policy GOVCOPP, Department of Economics, Management, Industrial Engineering and Tourism, University of Aveiro, Portugal;3. Instituto Nacional de Eficiencia Energética y Energías Renovables INER, Ecuador;4. Instituto Nacional de Investigaciones Agropecuarias INIAP, Ecuador |
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| Abstract: | Producing biochar from organic residues is a potential method to integrate carbon sequestration and residue management costs while enhancing conventional agricultural and forestry production systems. Plantation forestry is an important industry in Tasmania, and is based on large scale plantations of Pinus radiata and Eucalyptus (Eucalyptus globulus and E. nitens). The area covered by forestry plantations in Tasmania (on State land) exceeds 100 000 ha, while plantations on private land double this number. Eucalypt plantations are managed primarily for the production of high-value pruned logs for industry; however, unpruned saw logs, peelers, poles, posts and pulp are also produced, and significant quantities of residue are produced as a byproduct. This study was an economic analysis that considered on-site biochar production system using post-harvest forestry residues, with biochar being utilized within the system, or sold as a product. The financial analysis was based on previous experimental outcomes on the use of Macadamia shell biochar in Eucalyptus nitens plantations, and the local operating environment in Tasmania; including current forestry procedures used for managing plantations. A number of assumptions were considered concerning a) production costs, b) savings enjoyed by traditional operations, following biochar scenario implementation, and c) biochar sales. The analysis revealed a potential annual income of over 179 k$ (2014 value) and the sensitivity analysis identified the crucial factors responsible for scenario profitability, namely biochar price and final product distribution. |
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| Keywords: | Char Cost-benefit analysis Biochar scenario Tasmania |
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