When adding output variables to my results I received a following error statement in the .err file:
"* Warning * The following Report Variables were requested but not generated because IDF did not contain these elements or misspelled variable name -- check .rdd file
*** Key=*, VarName=DIRECT SOLAR RADIATION RATE PER AREA, Frequency=Hourly
*** Key=*, VarName=DIFFUSE SOLAR RADIATION RATE PER AREA, Frequency=Hourly"
The data are needed to verify the proper use and calculation of the direct normal radiation in the modified .epw file (using a local weather station data).