Coil heating rate and electricity rate

Ironbug_20241129_COP.gh (77.1 KB)
Hi @MingboPeng,

I am working on an all-electric VAV system as shown in the attached image. I aim to calculate the ratio of the coil heating rate (or cooling rate) to the electricity rate . While I can observe reasonable values for the cooling coil, for the heating electric coil, the heating rate and electricity rate are always identical.

I have attached the .gh file for your reference. Could you kindly provide any advice or insights on why this might be happening and how to resolve it?

Thank you in advance for your support!