Nice tool, I know things like that take time and energy, so the following is feedback and not meant in any negative way at all:
Does the code run in a python environment natively or are there some dependencies? If so you might want to add a requirements.txt
Also people probably do not want to install python on their computer just to run the program. A solution for that would be to create a html file for the gui and do power calculation and other functionality in javascript. This way everyone could just open the html file in their browser. Or you host a webserver and people could