A Network Modeling Systematics for Transition Paths Toward Climate Neutral Gas Networks - NeMoSys ['nεmɒsis] -

Meaningful network modeling requires high spatial and temporal resolution and thus adds further complexity to the already complex energy systems analyses; unsecured and varying framework conditions, as well as their changes over time, have to be taken into consideration on the backdrop of path‐dependencies for network development over time. This perspectives article provides a systematic framework for gas network modeling, starting with a morphology of modeling dimensions and elements and the hierarchy of influencing factors. It gives an overview on the necessary data and attributes, development steps, and assessment criteria; it showcases solutions for data management, fluid dynamic network simulation, and results assessment that have been applied and developed in the course of the TransHyDE project and other related research projects. Framework and solutions are merged into a consolidated network modeling systematics that shall be further developed and made available to researchers as well as to network planners for practical application and governmental bodies for assessments. The systematics presented here will be further developed, applied, and operationalized in a database and tool compilation with open‐access for collaboration and further development.