pvlib.pvsystem.sapm_spectral_loss¶
-
pvlib.pvsystem.
sapm_spectral_loss
(airmass_absolute, module)[source]¶ Calculates the SAPM spectral loss coefficient, F1.
Parameters: - airmass_absolute : numeric
Absolute airmass
- module : dict-like
A dict, Series, or DataFrame defining the SAPM performance parameters. See the
sapm()
notes section for more details.
Returns: - F1 : numeric
The SAPM spectral loss coefficient.
Notes
nan airmass values will result in 0 output.