Before analyzing the economic evaluation, please analyze first the energy output of your simulation.
I don't understand well what you have specified on your CSV file: with CSV reading, PVsyst only accepts hourly consumption values, not daily values.
If you want to create a PV system ensuring 100% self-consumption, it should be of sufficiently low power for never exceeding the User's needs, even by clear sky conditions.
I realized that the self-consumption has to be in hourly consumption values, like you said. I had the self-consumption in daily consumption values and that's why in the economic evaluation all the generated power was on the "sold energy to grid" row.