Generated the below Sefaira response curve for window-wall ratio versus peak cooling coil load (tons), in yellow and Annual electricity consumption (kWh) in red...
The linear increase in annual energy I get... But the weird cooling coil response curve, I’m having trouble wrapping my head around. Thoughts?
what kind of space use type & interior loads do you have in the model? If heavily interior loaded the heat can get trapped inside and the higher WWR ratio (with u-values which are worse than walls, typ) allows that heat to escape. Would/can also shift when the peak load is occurring since it could be a mix of interior/envelope loads too.
Ooh, good point. This does have pretty significant internal loads modeled currently... 1.5 W/sf, for a total energy end use contribution on the order of 40%. I like this explanation!
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