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Aquifer thermal energy storages as a cooling option for German data centers

机译：含水层热能存储作为德国数据中心的冷却选件

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The overall energy demand of data centers (DCs) is still rising dramatically. Since a DC’s cooling system (CS) is a large energy consumer, reducing its demand is a key element for improving the DC’s overall energy efficiency. Integrating an aquifer thermal energy storage (ATES) in DC’s CS can help cutting the DC’s energy demand drastically. However, ambiquity about the benefits and requirements for the operation of an ATES with a DC’s CS exists, relating to technical as well as legal aspects. Therefore, this article investigates the technical prerequisites a DC has to fulfill to integrate an ATES into its CS. In addition, a case study with a mid-size DC for three different common German DC locations is conducted to determine the energetic and economic savings of the ATES operation compared to a standard CS design. Using site specific data (e.g., weather and hydrogeological data), we showed that the ATES operation can reduce the CS’s energy demand drastically, depending mainly on the underground structure. It was further shown that ATES operation can be profitable in some cases for DC operators when energy efficiency programs of the German government are used.
机译：数据中心（DC）的总体能源需求仍在急剧上升。由于DC的冷却系统（CS）消耗大量能源，因此减少其需求是提高DC整体能效的关键因素。在DC的CS中集成含水层热能存储（ATES）可以帮助大幅减少DC的能源需求。但是，对于具有DC的CS的ATES的运行的好处和要求存在不确定性，涉及技术和法律方面。因此，本文研究了DC将ATES集成到其CS中必须满足的技术先决条件。此外，还针对三个德国常见的DC地点进行了中型DC案例研究，以确定与标准CS设计相比，ATES运营在能源和经济方面的节省。使用特定地点的数据（例如天气和水文地质数据），我们表明，ATES操作可以显着降低CS的能源需求，这主要取决于地下结构。进一步表明，使用德国政府的能效计划时，在某些情况下，对于DC运营商而言，ATES运营可能会有利可图。

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