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Japan's Long-term Energy Demand and Supply Scenario to 2050: Estimation for the Potential of Massive CO_2 Mitigation

机译:日本到2050年的长期能源需求和供应情景:大规模减少CO_2潜力的估算

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摘要

In this analysis, we projected Japan's energy demand/supply and energy-related CO_2 emissions to 2050. Our analysis of various scenarios indicated that Japan's CO_2 emissions in 2050 could be potentially reduced by 26-58% from the current level (FY 2005) (Fig. 1). These results suggest that Japan could set a CO_2 emission reduction target for 2050 at between 30% and 60%. In order to reduce CO_2 emissions by 60% in 2050 from the present level, Japan will have to strongly promote energy conservation at the same pace as an annual rate of 1.9% after the oil crises (to cut primary energy demand per GDP (TPES/GDP) in 2050 by 60% from 2005) and expand the share of non-fossil energy sources in total primary energy supply in 2050 to 50% (to reduce CO_2rnemissions per primary energy demand (CO_2/TPES) in 2050 by 40% from 2005). Concerning power generation mix in 2050, nuclear power will account for 60%, solar and other renewable energy sources for 20%, hydro power for 10% and fossil-fired generation for 10%, indicating substantial shift away from fossil fuel in electric power supply. Among the mitigation measures in the case of reducing CO_2 emissions by 60% in 2050, energy conservation will make the greatest contribution to the emission reduction, being followed by solar power, nuclear power and other renewable energy sources (Fig. 2). In order to realize this massive CO_2 abatement, however, Japan will have to overcome technological and economic challenges including the large-scale deployment of nuclear power and renewable technologies.
机译:在此分析中,我们预测了到2050年日本的能源需求/供应和与能源相关的CO_2排放。我们对各种情况的分析表明,到2050年,日本的CO_2排放量可能会比当前水平降低26-58%(2005财年)(图。1)。这些结果表明,日本可以将2050年的CO_2减排目标定在30%至60%之间。为了在2050年之前将CO_2排放量从目前水平降低60%,日本将必须以石油危机后的年均1.9%的速度大力促进节能(以降低单位GDP的一次能源需求(TPES / 2050年将非化石能源的GDP比例从2005年提高60%),并将非化石能源在2050年的一次能源供应总量中所占的比例扩大到50%(以使2050年的每一次能源需求的CO_2排放量比2005年减少40%) )。在2050年的发电混合方面,核电将占60%,太阳能和其他可再生能源将占20%,水力发电将占10%,化石燃料发电将占10%,这表明电力供应已从化石燃料发生重大转变。在2050年将CO_2排放量减少60%的缓解措施中,节能将为减排做出最大贡献,其次是太阳能,核能和其他可再生能源(图2)。为了实现这种大规模的二氧化碳减排,日本将必须克服技术和经济挑战,包括大规模部署核电和可再生技术。

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  • 来源
    《IEEJ energy journal》 |2009年第4期|1-24|共24页
  • 作者单位

    Institute of Energy Economics, Japan;

    Lawrence Berkeley National Laboratory, University of California;

    Lawrence Berkeley National Laboratory, University of California;

    Lawrence Berkeley National Laboratory, University of California;

    Lawrence Berkeley National Laboratory, University of California;

    University of California, Berkeley;

    Carnegie Mellon University;

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  • 正文语种 eng
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