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Well, what values were you expecting? =) I tried to run your model in OpenStudio but it didn't import properly, and what I don't know about EnergyPlus could fill several volumes, so I can't really do a direct evaluation of your model, at least not right now.

The geometry did import, and in looking at it, I see two daylight control points, one of which is pretty well shielded due to its location in the space. Your window has a VLT of 54%, which is throttling the daylight a bit, too. I don't know what weather file you used, nor do I know the run period, but if you had a cloudy climate and didn't sample the whole year, I could see you getting values like you're seeing, possibly. They do seem on the low side, but not out of the question, for certain cases. Again, knowing the climate and run period would help.

Well, what values were you expecting? =) I tried to run your model in OpenStudio but it didn't import properly, and what I don't know about EnergyPlus could fill several volumes, so I can't really do a direct evaluation of your model, at least not right now.

The ~~The geometry did import, and in looking at it, I see two daylight control points, one of which is pretty well shielded due to its location in the space. Your window has a VLT of 54%, which is throttling the daylight a bit, too. I don't know what weather file you used, nor do I know the run period, but if you had a cloudy climate and didn't sample the whole year, I could see you getting values like you're seeing, possibly. They do seem on the low side, but not out of the question, for certain cases. Again, knowing the climate and run period would help.

Well, what values were you expecting? =) I tried to run your model in OpenStudio but it didn't import properly, and what I don't know about EnergyPlus could fill several volumes, so I can't really do a direct evaluation of your model, at least not right now.

Well, what values were you expecting? =) I tried to run your model in OpenStudio but it didn't import properly, and what I don't know about EnergyPlus could fill several volumes, so I can't really do a direct evaluation of your model, at least not right now. The geometry did import, and in looking at it, I see two daylight control points, one of which is pretty well shielded due to its location in the space. Your window has a VLT of 54%, which is throttling the daylight a bit, too. I don't know what weather file you used, nor do I know the run period, but if you had a cloudy climate and didn't sample the whole year, I could see you getting values like you're seeing, *possibly. possibly. They do seem on the low side, but not out of the question, for certain cases. Again, knowing the climate and run period would help.*help.

Update: Having run your model in OpenStudio, using EnergyPlus and Radiance, I also see very different results. (Posted below, note the scales) I'm going to need some input from the EnergyPlus daylighting people here, assuming such people exist...