Reading values based on formulas from excel not working properly on Solstorm

[martinhjel]

Describe the Bug Reading an excel file where the values are computed by a formula does not provide NaN values when running on Solstorm.

To Reproduce Steps to reproduce the behavior:

1. Start a run on Solstorm by running scripts/copy_and_run_empire_on_hpc.sh.
2. On the path where the results are stored df = EmpireInputClient(dataset_path).generator.get_max_installed_capacity()
3. See NaN values for solar data that is based on a formula in the original excel sheet df[df["GeneratorTechnology"]=="Solar"]

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