I am trying to get the solar gains results (average across the whole year and peak across the whole year). The solar gains results are really low and I’m not sure why. This is the south façade so results should be much higher. I’ve attached a simple shoebox which I’m using to try and find the error.
It looks like your custom unit conversions are not quite correct. If you are trying to get the amount of transmitted solar energy per unit floor area, this is how I would recommend doing it: