Nekota
Member
All of which is unnecessary. You would never dial down the amps when charging a Tesla at home, or charge to a set number of kWh, or stop after a certain time. Just keep the car plugged in when you’re home and let the car charge when it needs to (or set time to start in the car if you have TOU rate). Some people make this way too complicated. You may be overthinking this.
There are times when I have needed to limit the current demand or set a finish time for charging rather than a set start time where flexibility and control enables possibilities rather than one size fits all situations. There have been situations where I needed to adjust the current to match the wiring capacity. For example if you have a 30A electrical dryer service that isn't used then you can connect and set the OpenEVSE to 24A and charge without having to update your 30A wiring or upgrade your electrical service. (I can also set the max charging current of the Tesla from inside the car but not make the adjustment from an app or remotely.) Also if you have multiple EVSE connections in your electrical system, being able to set the current or schedule the amount of energy or overlay the start stop times to balance the line loading can be useful. In some power delivery schedules the power demand is part of the energy bill and having the ability to adjust the power level to minimize the power demand can save substantial 'energy demand' fees. With the advent of negative electrical energy prices, having this type of control will be useful to enable a smarter grid and enable future upgrades as technology advances. And the unit can be operated with default settings so you don't have to do anything extra.