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Empty Output Fields in .csv File from jEPlus Despite Successful Simulation

asked 2025-07-07 00:50:07 -0500

Sk's avatar

updated 2025-07-07 10:21:25 -0500

I created a base model using OpenStudio 1.8.0 and exported the IDF file for use in jEPlus. When simulating the base model in OpenStudio, the eplustbl.htm file was generated successfully, but no eplustbl.csv file was created. I then ran a parametric analysis in jEPlus, where the .csv output file was generated. However, the output table only includes the input combinations of decision variables (Orientation, Heating Setpoint, Cooling Setpoint), while the output fields (Heating Load, Cooling Load, Thermal Discomfort Hours) are completely empty. Note that for every run the eplustbl.htm was generated and the html file had those outputs.

Has anyone faced a similar issue? What could be causing the output fields to be missing, even though simulations seem to run?

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@Sk are you asking about the eplustbl.csv file, which includes summary reports made of tables (same content as eplustbl.html file), or the eplusout.csv file, which includes time-series output variables and meters?

Aaron Boranian's avatar Aaron Boranian  ( 2025-07-07 10:22:46 -0500 )edit

Thanks for the clarification. I’m referring to the eplustbl.csv file (summary tables like in eplustbl.htm). I generated the IDF using OpenStudio 1.8.0, and while the simulation produces eplustbl.htm with the correct outputs (heating, cooling, discomfort), the eplustbl.csv is not generated. In jEPlus, I configured the RVX to extract results from eplustbl.csv (Heating, Cooling, Discomfort Hours). The output .csv is created, but the output fields are all empty—only the input combinations are shown. Any idea how to ensure the eplustbl.csv is generated or why jEPlus can't extract the outputs?

Sk's avatar Sk  ( 2025-07-07 20:51:37 -0500 )edit

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answered 2025-07-09 11:34:58 -0500

Yi Zhang's avatar

Make sure you have this object in your IDF file:

OutputControl:Table:Style,  CommaAndHTML;

Documentation about extracting from CSV tables is here: https://www.jeplus.org/wiki/doku.php?...

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Asked: 2025-07-07 00:50:07 -0500

Seen: 112 times

Last updated: Jul 09