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Usually energy-system-models have following costs for energy generators (for oemof case it is `transformer-objects`); investment costs, maintenance costs, and variable costs of the units. With the `investment-mode` of oemof, investment...

I was testing the oedialect API, and I tried to run the following script: https://github.com/OpenEnergyPlatform/examples/blob/master/api/OEP-oedialect_upload_from_csv.ipynb Unfortunately, I encountered an error which I cannot be able to understand. For the code...