Fix leap day bug in readWeatherFile. fixes #552.

bifacial_radiance/main.py

@@ -961,10 +961,10 @@ def _tz_convert(metdata, metadata, tz_convert_val):
             metdata, metadata = self._readSOLARGIS(weatherFile, label=label)
 
         if source.lower() =='epw':
-            metdata, metadata = self._readEPW(weatherFile, label=label)
+            metdata, metadata = self._readEPW(weatherFile, label=label, coerce_year=coerce_year)
 
         if source.lower() =='tmy3':
-            metdata, metadata = self._readTMY(weatherFile, label=label)
+            metdata, metadata = self._readTMY(weatherFile, label=label, coerce_year=coerce_year)
 
         metdata, metadata = _tz_convert(metdata, metadata, tz_convert_val)
         tzinfo = metdata.index.tzinfo
@@ -1270,7 +1270,14 @@ def _readEPW(self, epwfile=None, label = 'right', coerce_year=None):
                                                          coerce_year=coerce_year) #pvlib>0.6.1
         #pvlib uses -1hr offset that needs to be un-done. 
         tmydata.index = tmydata.index+pd.Timedelta(hours=1) 
+        # need to check for leap year here and add a day just in case
+        # use indices to check for a leap day and advance it to March 1st
+        leapday = (tmydata.index.month == 2) & (tmydata.index.day == 29)
+        index2 = tmydata.index.to_series()
+        index2.loc[leapday] +=  datetime.timedelta(days=1)
+        tmydata.set_index(index2, inplace=True)
 
+
         # rename different field parameters to match output from 
         # pvlib.tmy.readtmy: DNI, DHI, DryBulb, Wspd
         tmydata.rename(columns={'dni':'DNI',

docs/sphinx/source/user_guide/installation.rst

@@ -39,7 +39,7 @@ Linux/Mac OSX:
 4. Make directories where you want to install radiance, for example ``~/.local/opt/radiance``. Some users have reported that the installer for MacOS isn't descriptive about where it installs, and they have an easier time just choosing a location by pressing the "Change Install Location..." button in the "Installation Type" stage of the install. Then they source it in the bash/zsh_profile like so::
 
         export PATH=$HOME/bin/radiance/bin:$PATH
-        export RAYPATH=$HOME/bin/radiance/lib
+        export RAYPATH=.:$HOME/bin/radiance/lib
         export MANPATH=$HOME/bin/radiance/man
         export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$HOME/bin/radiance/lib
         export MDIR=$HOME/bin/radiance/lib

docs/sphinx/source/whatsnew/pending.rst

@@ -24,6 +24,7 @@ Bug fixes
 * Fixed a major error with indexing the irradiance conditions with :py:func:`~bifacial_radiance.RadianceObj.gendaylit1axis`. This could result in the trackerdict entry being mismatched from the metdata resource. (:issue:`441`)
 * versioning with setuptools_scm- set fallback_version to bifirad v0.4.3 to prevent crashes if git is not present (:issue:`535`)(:pull:`539`)
 * :py:func:`bifacial_radiance.load.readconfigurationinputfile` now properly handles loading moduleObj parameters from .ini files: `glass`, `glassEdge`, `frameParamsDict`, `omegaParamsDict` (:pull:`551`)
+* Fixed a leap year bug in   :py:func:`~bifacial_radiance.RadianceObj.readWeatherFile` that crashed if epwfiles are loaded that include leap year data (like Feb. 28 2020). (:issue:`552`)
 
 Documentation
 ~~~~~~~~~~~~~~

docs/tutorials/18 - AgriPV - Coffee Plantation with Tree Modeling.py

@@ -54,7 +54,7 @@
 #  
 # While we have HPC scripts to do the below simulation, this journals runs all of the above so it might take some time, as there are 109 combinations of parameters explored
 
-# In[7]:
+# In[ ]:
 
 
 import bifacial_radiance
@@ -64,7 +64,7 @@
 import pandas as pd
 
 
-# In[8]:
+# In[ ]:
 
 
 testfolder = str(Path().resolve().parent.parent / 'bifacial_radiance' / 'TEMP' /  'Tutorial_18')
@@ -76,7 +76,7 @@
 
 # ## General Parameters and Variables
 
-# In[9]:
+# In[ ]:
 
 
 lat = 18.202142
@@ -99,12 +99,12 @@
 nMods = 20
 nRows = 7
 numpanels = 1
-moduletype = 'test-module'
+module_name = 'test-module'
 hpc = False
 sim_general_name = 'tutorial_18'
 
 
-# In[10]:
+# In[ ]:
 
 
 if not os.path.exists(os.path.join(testfolder, 'EPWs')):
@@ -118,7 +118,7 @@
 
 # ## 1. Loop to Raytrace and sample irradiance at where Three would be located
 
-# In[15]:
+# In[ ]:
 
 
 demo = bifacial_radiance.RadianceObj(sim_general_name,str(testfolder))  
@@ -152,9 +152,10 @@
                 coffeeplant_x = (x+xgap)/2
                 coffeeplant_y = pitch/2
 
-                demo.makeModule(name=moduletype, x=x, y=y, xgap = xgap)
-                sceneDict = {'tilt':tilt,'pitch':pitch,'clearance_height':clearance_height,'azimuth':azimuth, 'nMods': nMods, 'nRows': nRows} 
-                scene = demo.makeScene(moduletype=moduletype,sceneDict=sceneDict, radname = sim_name)
+                demo.makeModule(name=module_name, x=x, y=y, xgap = xgap)
+                sceneDict = {'tilt':tilt, 'pitch':pitch, 'clearance_height':clearance_height, 'azimuth':azimuth,
+                             'nMods': nMods, 'nRows':nRows} 
+                scene = demo.makeScene(module=module_name, sceneDict=sceneDict, radname=sim_name)
                 octfile = demo.makeOct(octname = demo.basename )  
                 analysis = bifacial_radiance.AnalysisObj(octfile=octfile, name=sim_name)
 
@@ -180,13 +181,13 @@
 
 # ### Option 1: Raytrace of Empty Field
 
-# In[13]:
+# In[ ]:
 
 
 sim_name = 'EMPTY'
-demo.makeModule(name=moduletype, x=0.001, y=0.001, xgap = 0)
+demo.makeModule(name=module_name, x=0.001, y=0.001, xgap = 0)
 sceneDict = {'tilt':0,'pitch':2,'clearance_height':0.005,'azimuth':180, 'nMods': 1, 'nRows': 1} 
-scene = demo.makeScene(moduletype=moduletype,sceneDict=sceneDict, radname = sim_name)
+scene = demo.makeScene(module=module_name,sceneDict=sceneDict, radname = sim_name)
 octfile = demo.makeOct(octname = demo.basename)  
 analysis = bifacial_radiance.AnalysisObj(octfile=octfile, name=sim_name)
 frontscan, backscan = analysis.moduleAnalysis(scene=scene, sensorsy=1)
@@ -205,12 +206,11 @@
 print("YEARLY TOTAL Wh/m2:", puerto_rico_Year)
 
 
-
 # <a id='step2b'></a>
 
 # ### Option 2: Weather File
 
-# In[14]:
+# In[ ]:
 
 
 # Indexes for start of each month of interest in TMY3 8760 hours file
@@ -410,9 +410,9 @@
                 coffeeplant_x = (x+xgap)/2
                 coffeeplant_y = pitch
 
-                demo.makeModule(name=moduletype, x=x, y=y, xgap = xgap)
+                demo.makeModule(name=module_name, x=x, y=y, xgap = xgap)
                 sceneDict = {'tilt':tilt,'pitch':pitch,'clearance_height':clearance_height,'azimuth':azimuth, 'nMods': nMods, 'nRows': nRows} 
-                scene = demo.makeScene(moduletype=moduletype,sceneDict=sceneDict, radname = sim_name)
+                scene = demo.makeScene(module=module_name,sceneDict=sceneDict, radname = sim_name)
 
                 # Appending the Trees here
                 text = ''
@@ -511,9 +511,9 @@
 coffeeplant_y = pitch
 
 demo.gendaylit(4020)
-demo.makeModule(name=moduletype, x=x, y=y, xgap = xgap)
+demo.makeModule(name=module_name, x=x, y=y, xgap = xgap)
 sceneDict = {'tilt':tilt,'pitch':pitch,'clearance_height':clearance_height,'azimuth':azimuth, 'nMods': nMods, 'nRows': nRows} 
-scene = demo.makeScene(moduletype=moduletype,sceneDict=sceneDict, radname = sim_name)
+scene = demo.makeScene(module=module_name,sceneDict=sceneDict, radname = sim_name)
 
 
 for ii in range(0,3):