Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
@Pranav, first the bad news: 18 minutes is reasonable for large models when doing daylighting calcs. I can't tell for sure without time-profiling your model through a debug build, but I suspect that this is what's happening. Now the good news: the EnergyPlus version update due at the end of the month (V8.5) uses a new data structure to speed up daylighting calcs significantly. If you can't wait that long, you can download a pre-release version from GitHub (https://github.com/NREL/EnergyPlus/releases).
