Update comment in demo

markcampanelli · Feb 17, 2024 · 66cd993 · 66cd993
1 parent 5beb491
commit 66cd993
Showing 1 changed file with 5 additions and 2 deletions.
diff --git a/pvfit/modeling/dc/single_diode/model/demos/using_ghi_dni_dhi_ambient_temp.py b/pvfit/modeling/dc/single_diode/model/demos/using_ghi_dni_dhi_ambient_temp.py
@@ -367,8 +367,11 @@
 
 print(components.to_string())
 
-# This expression is derived from SAPM equation for Isc with unity air-mass modifier.
-# Uses IAM- and temperature-corrected POA irradiance as a surrogate for Isc.
+# This expression for F=Isc/Isc0 is derived from the SAPM equation for Isc.
+# Assumes that Isc is linear with IAM-corrected POA irradiance and applies a simple
+# linear temperature correction. Spectral effects are ignored by using a unity air-mass
+# modifier (no correction info available), as well as ignoring spectral effects on the
+# temperature coefficient for Isc.
 F = numpy.maximum(
     0.0,
     components["poa_total_iam_corr"].to_numpy()