This repository contains research data and code for supplementing the manuscript "Scale-bridging within a complex model hierarchy for investigation of a metal-fueled circular energy economy by use of Bayesian model calibration with model error quantification" by L. Gossel, E. Corbean, S. Dübal, P. Brand, M. Fricke, H. Nicolai, C. Hasse, S. Hartl, S. Ulbrich, and D. Bothe. There is a corresponding preprint available on Arxiv: https://doi.org/10.48550/arXiv.2404.13092 Users are referred to the manuscript for background information. This repository shall enable reproduction of the reported results and does not stand alone. Please read important information in the README in the top-level directory. Funded by the Hessian Ministry of Higher Education, Research, Science and the Arts - cluster project Clean Circles.