API field
STC reference power (explicit)
The STC reference power of the system; 0 = derived
Unit kW, system
What it is
The STC reference power of the system: the DC nameplate of the array reduced by the module and string mismatch derates. The AC loss fractions refer to it when the AC power reference is the STC reference power. The field is in kilowatts; the API takes watts.
Typical values and how to get it
0 derives it from the DC nameplate and the mismatch derates; the value used is shown next to the input and in the results of the run. Enter a value when the loss fractions were stated against a reference power computed elsewhere. If not given: derived: the array's DC nameplate times (1 − module mismatch) times (1 − string mismatch).
API
ac_losses.stc_ref_power_w — sent in W