Balmorel
Balmorel is an open-source, bottom-up partial equilibrium energy system model[1]. It has traditionally been applied to investigate decarbonisation pathways of sector-coupled energy systems[2], infrastructure[3], renewable fuel production[4] and more. Results and framework has been validated against other open-source models[5] [6].
A quick tutorial on how to get started can be found here, and the full documentation can be found here.