PV*SOL Expert 6.0 - Manual - Valentin Software

13.2.5 Inverter Characteristic Curve dialog
The conversion efficiency is the relationship of the power output to the power input,
dependent on the inverter power at that time.
The specification of the efficiency given in manufacturers’ data sheets relates to the
nominal output (power rating), which PV systems, however, are not able to deliver at most
times of the year. Therefore the part load operation is much more important for the
simulation results.
The programme requires 7 support points to define the characteristic curve, ie the
efficiency at 0, 5, 10, 20, 30, 50 and 100% of the nominal output.
To view the characteristic curve in graphic form, click on the Graph button.
For grid connected systems, the European efficiency support points are fixed and
displayed. If changes are made, these are first calculated on exiting the entry field.
-> See also:
Database: Inverter
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