分析人士称轮流停电凸显电网依赖风险

本周吕宋岛和米沙鄢群岛发生轮流停电,揭示了该地区对少数大型发电厂和输电线路的高度依赖。受电力供应不足影响,菲律宾国家电网公司(NGCP)于5月13日和14日发布了红色和黄色预警。气候与可持续城市研究所(ICSC)的分析人士警告称,共享设施的中断可能会引发更广泛的电力短缺。

5月14日凌晨4点48分,500千伏的达斯马里尼亚斯-伊利汉(Dasmariñas-Ilijan)输电线路跳闸,随后上午6点39分,500千伏的塔亚巴斯-伊利汉(Tayabas-Ilijan)输电线路也发生故障,导致停电。这些故障导致近2500兆瓦的电力中断,其中包括伊利汉(Ilijan)1号和2号电厂以及EERI的1、2、3号机组,这些均为液化天然气(LNG)设施。

吕宋岛的可用电力容量从预测的16975兆瓦降至12447兆瓦。米沙鄢电网在32个地区面临最长7小时的停电风险。吕宋岛(包括马尼拉大都会区)的9个地区出现了持续一小时的停电。

ICSC首席数据科学家杰弗里姆·马南萨拉(Jephraim Manansala)表示,储备电力应考虑到液化天然气接收站等共享基础设施,而不仅仅是单一电厂。该组织呼吁增加可再生能源、电池存储和快速响应电力容量,以降低电网风险。

NGCP报告称,自3月份以来,吕宋岛有17家电厂被迫停运,米沙鄢群岛也出现了类似问题,导致4242.5兆瓦的电力无法供应。超过42摄氏度的高温指数进一步加剧了用电需求压力。

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