Level 1, 2 and DC Fast Electric Vehicle Chargers
Level 1 Charging
Level 2 Charging
Level 2 chargers are typical solutions for commercial and workplace settings, and often an upgrade for residential charging. Level 2 charging offers a significant power output than Level 1, and ever-increasing user features and software.
Level 2 chargers require a dedicated power circuit and will most often require a permit to install issued by the local authority having jurisdiction of Building & Safety permit issuance. Public use Level 2 chargers are distinguished between non-networked chargers and networked chargers, often depending on if there is a ‘charge-to-charge’ an EV.
Non-networked Level 2 Chargers
Networked chargers through integrated software offer the most interface options in the commercial settings where ‘payment to charge’ is required, and where a property’s electrical bill is shared by multiple tenants.
Enhanced features include remote monitoring across multiple units, and load management for sites that have limited electrical capacity. Networked chargers also offer the ability to control hours of use which allows the operator to avoid peak demand electricity charges and maximize time-of-use rate structure.
DC Fast Charging
DC fast chargers are the highest-powered EV chargers on the market. They often are used as range extenders along major travel corridors for long-distance trips and in urban environments to support drivers without home charging or very high mileage drivers.
Typical DC fast chargers on the market charge at rates of 25-50 kW. At current charging rates, they are ideal for places where a person would spend 30 minutes to an hour, such as restaurants, recreational areas and shopping centers.
Currently available DC fast chargers require inputs of 480 volts at 100 amps (50-60 kW) and can produce a full charge for an EV with a 100-mile range battery in slightly more than 30 minutes (178 miles of electric drive per hour of charging).
With technology quickly advancing, newer models of DC fast chargers are being introduced with charge rates of 150-350 kW of power. It’s worth noting that not all EV models are capable of charging at the most rapid rates, and therefore, they cannot be utilized by every EV driver.
DCFC installations require a commercial electrician from the initial planning phase due to the electrical load and wiring requirements. In certain instances, it is necessary to apply to the local utility who provides electrical service for a new service where multiple DC fast chargers are proposed for installation. DC fast chargers have multiple standards for connectors, whereas there is only one common standard for Level 1 and 2 charging (SAE J1772). DC fast chargers have three types of connectors: CHAdeMO, CCS or Tesla.
3-5 miles of range per hour
208 or 240 1-Phase
12-40 miles of range per hour
DC Fast Charging
208 or 480 3-Phase
35-100+ miles of range per hour