冲绳电力公司首次限制了太阳能发电厂和其他可再生能源的供电。这家日本公用事业公司表示，他们被迫采取这些措施，以应对假期期间太阳辐射水平高和能源需求低的情况。
该公司表示，控制期将从上午8点（格林尼治标准时间+9）到下午4点，根据天气和电力需求情况，至少将实施三天。它指出，该措施从1月1日起实施，当时的电力需求约达669 MW，而电力供应量为738 MW。
冲绳县是位于日本最南端的县。据《冲绳时报》报道，冲绳县目前有大约1400个太阳能装置。 今年3月，日本经济产业省 （METI）在地震袭击东京地区后，首次发布了该地区的“电力短缺警报”。今年6月， 三菱和日本公用事业公司九州电力公司表示，他们将合作使用电网规模的电池存储，以减少太阳能限电对位于日本南部的九州岛的影响。
根据日本可持续能源政策研究所（ISEP）的数据，截至2021年底，九州岛在该
国的上网计划下，已完成约10.5 GW的光伏发电装机量和600 MW的风电装机量。据估计，该地区全年的缩减率约为4.4%，高于上一年的3.8%。
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