Life cycle GHG emission analysis of power generation systems: Japanese case |
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| Affiliation: | 1. Department of Environmental Engineering, Technical University of Denmark, Kgs. Lyngby, Denmark;2. School of Electrical, Electronic & Communications Engineering, University College Dublin, Dublin, Ireland;1. Department of Aeronautics and Astronautics, National Cheng Kung University, Tainan, 70101, Taiwan;2. Graduate Program in Sustainability Science, Graduate School of Frontier Sciences, The University of Tokyo, Chiba, 277-8563, Japan;1. Department of Mechanical Engineering, The Higher Institute of Polytechnic Professions, Trhuna, Libya;2. Center for Solar Energy Research and Studies, Libya;1. Centre for Sustainability, University of Otago, Dunedin, New Zealand;2. Department of Physics, University of Otago, Dunedin, New Zealand;3. Department of Electrical and Electronic Engineering, Jessore University of Science and Technology, Bangladesh |
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| Abstract: | This study presents the results of a life cycle analysis (LCA) of greenhouse gas emissions from power generation systems in order to understand the characteristics of these systems from the perspective of global warming. Nine different types of power generation systems were examined: coal-fired, oil-fired, LNG-fired, LNG-combined cycle, nuclear, hydropower, geothermal, wind power and solar-photovoltaic (PV). Life cycle greenhouse gas (GHG) emission per kW h of electricity generated was estimated for the systems using a combined method of process analysis and input–output analysis. First, average power generation systems reflecting the current status in Japan were examined as base cases. Second, the impacts of emerging and future nuclear, wind power and PV technologies were analyzed. Finally, uncertainties associated with some assumptions were examined to help clarify interpretation of the results. |
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