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Increased WWR = Decreased Peak Tonnage?

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?

Weird Response Curve

Increased WWR = Decreased Peak Tonnage?

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?

Weird Response Curve