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# Revision history [back]

### Get Illuminance at Reference Point (Daylight + Lamp)

Dear all,

I want to get the illuminance [lux] of a zone which depend on daylighting and on the lamp intensity. Unfortunatelly, there is no "illuminance at reference point" output. There is just a "daylighting at reference point" ignoring the light from the lamps. Do you have an idea how to calculate the sum of both light sources? In concrete I am looking for the value a real light sensor would measure at a reference point.

### Get Illuminance at Reference Point (Daylight + Lamp)

Dear all,

I want to get the illuminance [lux] of a zone which depend on daylighting and on the lamp intensity. Unfortunatelly, there is no "illuminance at reference point" output. There is just a "daylighting at reference point" ignoring the light from the lamps. Do you have an idea how to calculate the sum of both light sources? In concrete I am looking for the value a real light sensor would measure at a reference point.

EDIT: I am using EnergyPlus

 3 retagged Aaron Boranian 12565 ●49 ●20 http://bigladdersoftware.com/

### Get Illuminance at Reference Point (Daylight + Lamp)

Dear all,

I want to get the illuminance [lux] of a zone which depend on daylighting and on the lamp intensity. Unfortunatelly, there is no "illuminance at reference point" output. There is just a "daylighting at reference point" ignoring the light from the lamps. Do you have an idea how to calculate the sum of both light sources? In concrete I am looking for the value a real light sensor would measure at a reference point.

EDIT: I am using EnergyPlus

 4 retagged Aaron Boranian 12565 ●49 ●20 http://bigladdersoftware.com/

### Get Illuminance at Reference Point (Daylight + Lamp)

Dear all,

I want to get the illuminance [lux] of a zone which depend on daylighting and on the lamp intensity. Unfortunatelly, there is no "illuminance at reference point" output. There is just a "daylighting at reference point" ignoring the light from the lamps. Do you have an idea how to calculate the sum of both light sources? In concrete I am looking for the value a real light sensor would measure at a reference point.

EDIT: I am using EnergyPlus

 5 retagged Aaron Boranian 12565 ●49 ●20 http://bigladdersoftware.com/

### Get Illuminance at Reference Point (Daylight + Lamp)

Dear all,

I want to get the illuminance [lux] of a zone which depend on daylighting and on the lamp intensity. Unfortunatelly, there is no "illuminance at reference point" output. There is just a "daylighting at reference point" ignoring the light from the lamps. Do you have an idea how to calculate the sum of both light sources? In concrete I am looking for the value a real light sensor would measure at a reference point.