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# Revision history [back]

### Strange behavior of cooling, heating energy consumption and Blinds operation

Hi All,

I am trying to model blinds in EnergyPlus, I have setup Daylighting:Controls and have a schedule to operate blinds. However, when I try to simulate my building it gives readings that lighting energy increases when there was blinds (make sense) but it also gives results that heating and cooling energy consumption increase when there was blinds (This does not make sense to me). The blinds should be blocking solar gains and therefore there should be reduction in cooling energy, on the other hand it will also reduce heat loss and hence reduction in heating energy consumption.

I may be missing some small point but unable to figure it out at the moment. Any ideas? The location for weather file is UK and there is only one south facing window.

Thanks

 2 retagged Neal Kruis 4510 ●6 ●15 http://bigladdersoftware.com/

### Strange behavior of cooling, heating energy consumption and Blinds operation

Hi All,

I am trying to model blinds in EnergyPlus, I have setup Daylighting:Controls and have a schedule to operate blinds. However, when I try to simulate my building it gives readings that lighting energy increases when there was blinds (make sense) but it also gives results that heating and cooling energy consumption increase when there was blinds (This does not make sense to me). The blinds should be blocking solar gains and therefore there should be reduction in cooling energy, on the other hand it will also reduce heat loss and hence reduction in heating energy consumption.

I may be missing some small point but unable to figure it out at the moment. Any ideas? The location for weather file is UK and there is only one south facing window.

Thanks

 3 retagged __AmirRoth__ 4388 ●5 ●16 http://bleedinggreenna...

### Strange behavior of cooling, heating energy consumption and Blinds operation

Hi All,

I am trying to model blinds in EnergyPlus, I have setup Daylighting:Controls and have a schedule to operate blinds. However, when I try to simulate my building it gives readings that lighting energy increases when there was blinds (make sense) but it also gives results that heating and cooling energy consumption increase when there was blinds (This does not make sense to me). The blinds should be blocking solar gains and therefore there should be reduction in cooling energy, on the other hand it will also reduce heat loss and hence reduction in heating energy consumption.

I may be missing some small point but unable to figure it out at the moment. Any ideas? The location for weather file is UK and there is only one south facing window.

Thanks