@Keet I'm partially agree with you.

available for Windows, Mac, and Linux.

-Djava.library.path=./exe/lib/jogl/native/linux-64

The linux-64 folder is missing. I tried (not very hard) to make it work, but without success.
The fact that it is open source is very good!
In my opinion, this could be more of a new feature for SH3D (as a plugin for analyzing a house's energy) than a conversion to an energy3d file.