I have listened to many webinars on commercial EVSE. The format of “first hour (or 2) free” is fairly common. It’s purpose is not to draw you in, but to deter camping in the space. To this end, the prices for extended charging may be disproportionately high. We are installing (within the next 7 days) the first EVSE (2 spaces, 2 plugs) at Marshall University. Charging is free, but the (44 space) lot is not AND it has a two hour limit. Campus police monitor those EV spaces exactly as the others. The pricing schema is EVSE owner (not manufacturer OR network) dependent.Yes, I heard that the cost depends on the property where the charger is installed at. One of my employer's locations offers free charging for the first hour, and then charge by the hour for the time the charger is left plugged in past the free hour.