Table A-1: Glossary of variable names
Variable name
Description
GeffTest
Effective irradiance of test panel, W/m
2
GeffRef
Effective irradiance of reference panel, W/m
2
Offset_Geff
Measured offset between reference and test panels, %
Stable_Data_Count
Incrementally counts when conditions are appropriate for
performing soiling loss index
Update_Offset
Boolean variable that user triggers when the offset
correction is to be performed
UTC_Offset_UserEntered
User-entered UTC offset of site location, hours
Latitude_UserEntered
User-entered latitude of site location
Longitude_UserEntered
User-entered longitude of site location
AlphaTest_UserEntered
Published panel short-circuit current (Isc) temperature
coeffecient of the test panel (if published in units of %/°C,
then enter published value/100)
AlphaRef_UserEntered
Published panel short-circuit current (Isc) temperature
coeffecient of the reference panel (if published in units of
%/°C, then enter published value/100)
IscTeststc_UserEntered
Published panel short-circuit current (Isc) of the test panel at
STC
IscRefstc_UserEntered
Published panel short-circuit current (Isc) of the reference
panel at STC
LocalSolarNoon
Solar noon of site location, as determined by user-entered
site location data
DustVue
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