This is a simple app to help one determine how much to charge up one's Electric Vehicle (EV) at home before leaving for work in order to maximize free charging at work (or other location).
This is helpful if you 1) have an EV 2) have a home charger, 3) your employer (or the location you are traveling to) has free charging, and 4) you want to minimize your electricity costs at home while maximizing the use of the free work/destination charging.