Electric Vehicle Charging Station

2 min read

USE Cases

Use Case #1: Charging at home

Even though the public charging stations offer the benefits of no installment cost, they come with some potential drawbacks such as long wait times, inconvenience caused to locate charging stations in the vicinity, and battery damage due to level 3 high charging output power.

Residential chargers are usually level 2 charging stations and deliver output power between 3.7 – 22kW through either phase 1 or phase 3 of the house.  The level 2 charging at home, most of the cars take overnight to charge, however, this speed of charging also depends on the phase to which the charger is connected and the conversion rate of the AC to DC power converter of the EV. These chargers are an economically viable option as they consume electricity from the residential energy power grid or through solar energy modules at home. Several EV charger manufacturers have made compatible chargers such that they can easily charge other EV models and help through intelligent software and mobile applications.

Use Case #2: Wireless Charging

Even with ongoing electric vehicle growth, there are several drawbacks to the traditional wired charging stations. For instance, connectors and charging cables can wear down over a period of time, reducing the charging efficiency. Next, the need for a unified charging cable has been constantly pointed out by EV users. Such features limit the overall charging capabilities.

Wireless charging offers enormous benefits over traditional wired charging stations. There are different types of wireless charging technologies available which include, inductive wireless charging, resonant inductive coupling, capacitive wireless charging, microwaves, etc. By using these technologies, a wireless charging system is installed where vehicles remain stationary such as in parking lots. In the near future, this wireless charging system can be embedded into the roads as well, such that it will become a commercially viable option and vehicles will be charged continuously without downtime.

Use Case #3: Public Charging Stations

Electric vehicles using public charging stations only bear the usage costs and are saved from paying the huge installment costs. The public charging stations usually use the level 2 chargers such that they are compatible with all types of vehicles. Such charging stations are maintained by the manufacturers and are managed by management software. These systems are easy to use for the consumer with their simple plug-and-play interface. With public charging available at more locations, the USAge of electric vehicles is set to become mainstream.

Use Case #4: DC Fast Charging

The number of electric vehicles is growing substantially. However, downtime for charging is the major pullback for the wider adoption of the technology. Several automakers offer the swappable battery option to consumers, but this option is not suitable for long-term usage, and other levels 1 and level 2 charging options are time-consuming.

The DC fast charging technology offers higher charging rates which chargers the EV battery much faster than the conventional charging options available. These offer a much faster charging experience within a shorter time period and the output power ranges usually from 50- 350kW. The major benefit of using a DC fast charging charger is that once it charges the vehicle’s battery up to 80% it automatically slows down the charging rate, thereby reducing the overcharging of the battery and thus maintaining the life of the EV battery. There are currently rising thermal issues over DC fast charging to which several measures to handle the battery life are underway.

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