ETHOS.FINE: A Framework for Integrated Energy System Assessmenthttps://doi.org/10.26165/JUELICH-DATA/U2UVX6Klütz, TheresaKnosala, KevinBehrens, JohannesMaier, RachelHoffmann, MaximilianPflugradt, NoahStolten, DetlefJülich DATA2026-02-032026-02-03T13:00:35ZThe ETHOS.FINE python package provides a framework for modeling, optimizing and assessing energy systems. With the provided framework, systems with multiple regions, commodities, time steps and investment periods can be modeled. Target of the optimization is the minimization of the systems net present value (NPV) while considering technical and environmental constraints. If only one investment period is considered, the net present value is equal to the total annual costs (TAC). Besides using the full temporal resolution, an interconnected typical period storage formulation can be applied, that reduces the complexity and computational time of the model.Otherdoi, 10.5281/zenodo.14673547, https://doi.org/10.5281/zenodo.14673547Klütz, Theresa2026-02-03CC0CC0 Waiver