The EPA will provide us with the information on energy_busses, as those are gathered while the energy system model is created via drag-and-drop (comp. #605, #625). This leaves following options:

• The MVS recognizes if the json input is provided with a infromation regarding energy_busses, and either circumvents the functions that would ususally define them, or uses them as a validation method

• We, also for local MVS use, require the end-user to define the energy busses in an additional csv. This would help us out, as then we would be able to define the energy carrier of each bus explicitly, not implicitly. The implicit definition currently results in issue Energy excess parameters may be calculated incorrectly #559.