Remove various repeated words in documentation

docs/examples/irradiance-decomposition/plot_diffuse_fraction.py

@@ -203,7 +203,7 @@
 # `NSRDB`_ user manuals.
 #
 # The Erbs and Boland models are correlations only based on the clearness index
-# kt, which is the ratio of GHI to the the horizontal component of the
+# kt, which is the ratio of GHI to the horizontal component of the
 # extra-terrestrial irradiance. At low sun elevation (zenith near 90 degrees),
 # especially near sunset, kt can explode because the denominator
 # (extra-terrestrial irradiance) approaches zero. In pvlib this behavior is

pvlib/ivtools/sdm.py

@@ -48,7 +48,7 @@ def fit_cec_sam(celltype, v_mp, i_mp, v_oc, i_sc, alpha_sc, beta_voc,
     beta_voc : float
         Temperature coefficient of open circuit voltage [V/C]
     gamma_pmp : float
-        Temperature coefficient of power at maximum point point [%/C]
+        Temperature coefficient of power at maximum point [%/C]
     cells_in_series : int
         Number of cells in series
     temp_ref : float, default 25

pvlib/location.py

@@ -282,7 +282,7 @@ def get_airmass(self, times=None, solar_position=None,
         times : None or DatetimeIndex, default None
             Only used if solar_position is not provided.
         solar_position : None or DataFrame, default None
-            DataFrame with with columns 'apparent_zenith', 'zenith'.
+            DataFrame with columns 'apparent_zenith', 'zenith'.
         model : str, default 'kastenyoung1989'
             Relative airmass model. See
             :py:func:`pvlib.atmosphere.get_relative_airmass`

pvlib/modelchain.py

@@ -1518,7 +1518,7 @@ def _build_irrad(data):
         return self
 
     def _assign_times(self):
-        """Assign self.results.times according the the index of
+        """Assign self.results.times according the index of
         self.results.weather.
 
         If there are multiple DataFrames in self.results.weather then

pvlib/pvsystem.py

@@ -893,7 +893,7 @@ def num_arrays(self):
 
 class Array:
     """
-    An Array is a set of of modules at the same orientation.
+    An Array is a set of modules at the same orientation.
 
     Specifically, an array is defined by its mount, the
     module parameters, the number of parallel strings of modules
@@ -996,7 +996,7 @@ def __repr__(self):
         )
 
     def _infer_temperature_model_params(self):
-        # try to infer temperature model parameters from from racking_model
+        # try to infer temperature model parameters from racking_model
         # and module_type
         param_set = f'{self.mount.racking_model}_{self.module_type}'
         if param_set in temperature.TEMPERATURE_MODEL_PARAMETERS['sapm']: