EV Charging Levels

Electric Vehicle Supply Equipment (EVSE) is the collective term for charging equipment required to supply AC or DC power to electric vehicles.  It incorporates a safety protocol and two-way communication to control the safe flow of power to the EV.  There are three levels of EVSE or ''EV chargers'':

Level 1: This level of EVSE plugs into a standard domestic socket and can supply up 16 Amps or 3.6 kW of AC power. A level 1 portable EV charger is usually supplied with an EV and provides the simplest, but also the slowest, method of charging an EV. 

Level 2: This level of EVSE can supply between 7.4 kW and 22 kW of AC power and must be installed by a qualified electrician into an electric circuit that can provide the required power.  It enables the fastest means of charging at your home or workplace.

Level 3: This level of EVSE can supply up to 350 kW of DC power and is known as a "Fast Charger" or "Supercharger".  Level 3 DC chargers are much more expensive than Level 2 AC chargers and require extensive electrical infrastructure investment to supply required high power.  Level 3 DC chargers are mainly found at public charging facilities on national highways or dedicated fast charging facilities.