Assessment of renewable energy expansion potential and its implications on reforming Japan's electricity system
Assessment of renewable energy expansion potential and its implications on reforming Japan's electricity system
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DOI：
10.1016/j.enpol.2018.01.024
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发表时间：
2018-04
期刊：
影响因子：
9
通讯作者：
T. Wakiyama;A. Kuriyama
中科院分区：
文献类型：
--
作者：
T. Wakiyama;A. Kuriyama
本研究根据国家自主贡献（NDC）减排目标和2 °C升温限制目标，评估了日本在最大化可再生能源发电和降低电力部门CO2排放强度方面的区域能源组合潜力。从解除电力零售市场的管制开始，围绕2020年前的电力体制改革展开了讨论。本文探讨了到2030年在区域层面上的潜在能源结构，并确定了加快电力系统改革以扩大跨区域可再生能源发电的必要性。通过分析现有数据，我们评估如何有效利用区域可再生能源潜力，并确定电力改革应如何进行，以利用可再生能源并降低碳强度。最后，我们报告了日本巨大的可再生能源潜力。然而，为了最大限度地利用这些潜力，需要将技术和政策相结合，以促进灵活的电网运营，加强输电能力和可再生能源优先调度秩序，并引进可再生能源电力供应的稳定电力系统的技术，如抽水蓄能水电、蓄电池和需求响应，这些技术可以储存多余的能源，直到需要为止。
This study assesses the regional energy mix potentials of Japan for maximised renewable electricity generation and reduced CO2emission intensity in the electricity sector, in view of the nationally determined contribution (NDC) mitigation target, and the 2 °C rise limit target. Beginning with the deregulation of the retail electricity market, discussions have been initiated about Japanese electricity system reforms towards 2020. This paper examines the potential energy mix up to 2030 at the regional level, and identifies the need to accelerate electricity system reforms to expand the transregional access to renewable electricity generation. By analysing available data, we assess how regional renewable energy potentials can be put to effective use, and identify how electricity reform should proceed, to both capitalise on renewables and reduce carbon intensity. Finally, we report the large renewable potentials in Japan. However, in order to maximise the use of these potentials, a combination of technologies and policies are required to promote flexible grid operation, and strengthen transmission capacity and renewable priority dispatch order, as well as to introduce technology for stabilizing electricity systems supplied by renewable electricity, such as pumped storage hydropower, storage cells, and demand-response, which can store surplus energy until it is needed.