Trend analyses of the small and medium hydro power development after the FIT scheme introduced in Japan
Trend analyses of the small and medium hydro power development after the FIT scheme introduced in Japan
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日本实行FIT后中小型水电发展趋势分析
DOI：
10.1016/j.egyr.2020.11.230
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发表时间：
2020
期刊：
影响因子：
5.2
通讯作者：
Tatsuro Sato
中科院分区：
文献类型：
--
作者：
Taichi Sakabe;T. Murakawa;Kento Nishida;J. Ide;Tatsuro Sato
2012年7月，日本推出了针对所有可再生能源的上网电价（FIT）计划，以促进可再生能源发电。在FIT计划下，光伏发电装置如先前研究报告的那样呈指数增长。虽然水电是最重要的可再生、清洁和稳定的能源之一，但很少有研究分析日本FIT实施后的趋势。本研究的目的是阐明上网电价补贴计划下中小型水电装机的趋势，并检验上网电价补贴对中小型水电装机的有效性。在2012年6月SMHP开始FIT计划之前，现有水电总量为9600兆瓦，只有100兆瓦作为新引入电力引入了8年。在FIT制度下，在头4年（2011-2015年），平均每年有140个案例获得认证。另一方面，2016年之后，认证数量明显减少。电力公司高压连接的电网限制可能会影响这一变化。我们的结论是，现行的上网电价补贴计划主要用于现有大型水电的更新或维修和电力升级。如果安装速度不变，2030年的目标将在2100年实现。这是因为SMHP存在FIT制度无法解决的各种问题，如难以确定合适的地点、建设费用、与通常拥有水权的居民达成共识等。
In July 2012, the Feed-in Tariff (FIT) scheme for all renewable energy was introduced in Japan to promote renewable energy generation. Under the FIT scheme, the installation of photovoltaic power increased exponentially as previous studies reported. Although hydropower is one of the most important sources of renewable, clean, and stable energy, few studies analyzed the trend after the FIT started in Japan. The purposes of this study were to clarify the trend of the small and medium hydropower (SMHP) installation under the FITs scheme and examine the effectiveness of FIT to SMHP. Before the FIT scheme started for SMHP in June 2012, total amounts of existing hydropower were 9,600 MW, and the only 100 MW was introduced as new introduction power for eight years. Under the FIT system, there were 140 cases on average certificated every year in the first 4years (2011–2015). On the other hand, after 2016, the number of certifications decreased obviously. The power grid limitation in high voltage connection by power companies might influence this change. We concluded that the present FIT scheme mainly contributed to the renewal or maintenance and power upgrading of existing large hydropower. If the installation pace does not change, the 2030 target will be achieved in 2100. That is because SMHP has various problems that cannot be solved by the FIT system, such as difficulty in estimating suitable sites, construction costs, and consensus-building with residents who generally have the water right.