pvlib.pvsystem.PVSystem.get_iam#
- PVSystem.get_iam(aoi, iam_model='physical')[source]#
Determine the incidence angle modifier using the method specified by
iam_model
.Parameters for the selected IAM model are expected to be in
PVSystem.module_parameters
. Default parameters are available for the ‘physical’, ‘ashrae’ and ‘martin_ruiz’ models.- Parameters:
aoi (numeric or tuple of numeric) – The angle of incidence in degrees.
aoi_model (string, default 'physical') – The IAM model to be used. Valid strings are ‘physical’, ‘ashrae’, ‘martin_ruiz’, ‘sapm’ and ‘interp’.
- Returns:
iam (numeric or tuple of numeric) – The AOI modifier.
- Raises:
ValueError – if iam_model is not a valid model name.