API field
DC flat derates model
How the mismatch inputs combine and how the derates scale the array curve
What it is
Selects how the module and string mismatch combine and how the flat derates scale the array's current-voltage curve.
Typical values and how to get it
Chosen on the Model tab.
Values
PVsyst 8 settings = pvsyst_8: the module and string mismatch add, and each derate takes half its fraction from the curve's current and the rest from its voltage · Sequential flat derates = flat (default): the module and string mismatch multiply, and the product of the derates scales the curve's current and voltage by its square root each
API
dc_losses.derate_model