Iberdrola已经开启Alto Tâmega水库的蓄水过程，该水库是葡萄牙最大的抽水蓄能电站的重要组成部分。整个项目包括一个160 MW的Alto Tâmega水电站，一个880 MW的Gouvães抽水蓄能电站和一个118 MW的Daivões水电站。这三个电站自2022年以来均一直处于运营中。
Alto Tâmega水坝呈弧形，采用独具特色的双曲设计，坝高104.5米，建造使用混凝土22万立方米，它的建成，标志着一个重要的里程碑。随着建造阶段的完成，现在的工作重心主要放在Alto Tâmega水库的蓄水上。这是最为重要的一步，有助于利用水资源，在位于大坝底部的Alto Tâmega发电厂生产可再生电力。
在详细阐述技术细节时，Iberdrola强调其在最近关闭了导流隧道。在接下来的三个月里，一个长达28米的巨大混凝土塞子，将在隧道内精心建造，这项措施十分关键，旨在确保在设施的整个运营生命周期内，全面持久地关闭引水隧道。
在这三个月的时间里，河水将通过大坝底部的出口继续循环，保持连续的自然节奏。
Iberdrola表示：“Tâmega水电综合体是葡萄牙历史上最大的能源项目之一。”
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