According to the current state of research and development, it is not possible to build a gigawatt electrolysis system with one single electrolysis stack. To achieve larger capacities, a numbering-up of the stacks and corresponding adjacent systems must take place. This is where modularization can contribute. To identify a functional decomposition into modules for each system, the literature was searched for PFDs (Process Flow Diagram) and P&IDs (Piping and Instrumentation Diagram). The PFDs and P&IDs found were compared per electrolysis technology to create a generic PFD in each case. This was submitted to experts within the VDMA Power-to-X for Applications (P2X4A) platform for verification and revised according to the information provided by the experts. The results is a generic module decomposition for each technology, Alcaline Electrolysis–AEL, Proton Exchange Membrane Electrolysis–PEMEL and High Temperature Electrolysis–HTEL.

中文翻译：

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大型电解系统的模块化方法：综述

根据目前的研发状况，用单个电解堆构建千兆瓦级电解系统是不可能的。为了实现更大的容量，必须对堆栈和相应的相邻系统进行编号。这就是模块化可以发挥作用的地方。为了确定每个系统的模块功能分解，我们在文献中搜索了 PFD（工艺流程图）和 P&ID（管道和仪表图）。根据电解技术对找到的 PFD 和 P&ID 进行比较，以在每种情况下创建通用 PFD。该报告已提交给 VDMA Power-to-X for applications (P2X4A) 平台内的专家进行验证，并根据专家提供的信息进行修订。结果是每种技术的通用模块分解：碱性电解 - AEL、质子交换膜电解 - PEMEL 和高温电解 - HTEL。