Extract zone CO2 concentration


I’m trying to extract zone CO2 concentrations in energyPlus by adding additional outputs to the Idf file… EP seems to run fine but I can’t see how to extract it from the results file. Has anybody else tried similar and got any tips?

Unfortunately I’m a new user so can’t upload files but have added a download link here.


Are you modelling natural ventilation (opening windows) in which case I have an example of setting the number of people indoors (producing CO2) and Setting the outdoor Ppm for CO2.

This may be enough?


I’ve found the solution. It was working fine, just needed to use the ‘honeybee read ep custom result’ component.