Re: [EnergyPlus_Support] Daylight report

[Linda Lawrie <linda@xxxxxxxxxx>]

Here are two other definitions of the Daylighting Report (from 
StandardReports) that seem to yield more accurate results, but are 
not identical:

Report:Table:Monthly,
     Daylighting Report for Hours Shown,      !- Name
     ,                        !- DigitsAfterDecimal
     Zone Transmitted Solar,  !- VariableOrMeterName01
     HoursNonZero,            !- AggregationType01
     Ltg Power Multiplier from Daylighting,  !- VariableOrMeterName02
     SumOrAverageDuringHoursShown,  !- AggregationType02
     Ltg Power Multiplier from Daylighting,  !- VariableOrMeterName03
     MinimumDuringHoursShown, !- AggregationType03
     Daylight Illum at Ref Point 1,  !- VariableOrMeterName04
     SumOrAverageDuringHoursShown,  !- AggregationType04
     Glare Index at Ref Point 1,  !- VariableOrMeterName05
     SumOrAverageDuringHoursShown;  !- AggregationType05

Report:Table:Monthly,
     Daylighting Report,      !- Name
     ,                        !- DigitsAfterDecimal
     Ltg Power Multiplier from Daylighting,  !- VariableOrMeterName02
     SumOrAverage,  !- AggregationType02
     Ltg Power Multiplier from Daylighting,  !- VariableOrMeterName03
     Minimum, !- AggregationType03
     Daylight Illum at Ref Point 1,  !- VariableOrMeterName04
     SumOrAverage,  !- AggregationType04
     Glare Index at Ref Point 1,  !- VariableOrMeterName05
     SumOrAverage;  !- AggregationType05

The Exterior Beam Illuminance variable shown in the original is an 
environment oriented variable where as these are all indexed to the 
zone.  I think that may be a problem -- which will have to be looked at.

Zone Transmitted Solar is a variable that is indexed to the 
zone.  When it is non-zero, that should also indicate the possibility 
of solar into the zone for daylighting purposes.


Linda

EnergyPlus WebSite: http://www.energyplus.gov
Owner: EnergyPlus_Support list
Member: EnergyPlus Development Team



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