1. Solution exception: ** Fatal **

Hi all, I am attempting to get annual loads from a honeybee/ladybug shoebox energy model and am getting this error. 1. Solution exception: ** Fatal ** Program terminated for reasons listed (InitConductionTransferFunctions)

I see others have had this error come up, but it looks like the cause is not always the same, and I can’t manage to find the issue. I am using OpenStudio 3.7 and all my components are Ladybug 1.8.0. I am using Rhino 6 to run the script, since my grasshopper always crashes in Rhino 7 even when I haven’t toggled “run” yet. My Rhino 6 and 7 are up to date. Could someone please take a look and suggest what the error might be?
@chris

240412 shoe_box_annual_loads.gh (72.1 KB)

Sorry for the late response, @sustainabilityanalyst1 .

If you check the report output for the Annual Loads component, it has more information about what went wrong. And one line in particular highlights the problem:

Your opaque material is too thick for E+ to model it correctly. Looking at your Roof, a construction thickness of nearly half a kilometer would definitely be too thick for E+:

I am guessing that you thought the units were mm and not m. If you divide your thickness by 1000, EnergyPlus simulates fine:


240412 shoe_box_annual_loads_CWM.gh (69.4 KB)