Converting output from gencumulativesky to kWh/m²
Hi,
I've been experimenting with gencumulativesky and the -S1/-S2 switches to chose between the "smeared" representation of the sun and the "binned" representation of the sun. The version of gencumulativesky I have has a -r switch which the help text tells me divides the output by 179000 to convert from (I think) W/sr.m² to kWh/m².
The issue I have is that this does not appear to be applied to the SunFile.rad file which is generated as a result of chosing the binned option. Thus when I generate an image using the sky and sun output from gencumulativesky I get really big numbers (W/sr.m²).
I've experimented with feeding my image into pcomb and setting the -s factor to be 1/179000 (5.587e-6) and this appears to convert my numbers into the right ball park for kWh/m².
However I'm not entirely sure that what I've done is actually numerically correct. Does anyone have any guidance on the correct way to work with gencumulativesky with the binned suns and produce output in kWh/m²?
