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Charging System - Charging Methods

Typical Electric Vehicle Charging Methods

8-10
hrs

Conductive Charging

It just takes one simple step – plug the electric vehicle into a 13A standard socket with dedicated circuit and independent protective device. It is easy and convenient, but takes a longer charging time (e.g. 8-10 hours for a complete 0 to 100% charging for an EV with battery capacity of 24kWh) when compared to other charging methods.

It is suitable to those who travel regularly between home and office, such that they can park their cars overnight at their residential car park to recharge the battery. It can also be used for short-term (e.g. 1-2 hours) “top-up” purposes at shopping malls or other public car parks to add 15 to 30 additional kilometers to your EV’s range.

CLP Standard Charging System

CLP Standard Charging System

 

CLP Dual-Mode Charger

Dual-Mode Charger launched by CLP could provide charging in both British standard and European IEC standard for EV, which supports single phase 32A charging to shorten the charging time by a half. 

CLP Dual-Mode Charger


British BS1363 Standard Socket
1 phase, 220V, 13A


European IEC62196 Standard Socket
1 phase, 220V, 32A

Semi-quick charging could provide up to three phase 32A current for charging an electric vehicle. It takes much shorter charging time using semi-quick charging compared to standard charging.  It takes only just over an hour for a complete 0 to 100% charging for an EV with battery capacity of 24kWh.

In the semi-quick charging facilities installed by CLP, European IEC standard, American SAE standard and British standard sockets are widely adopted to meet different charging requirements from multiple types of electric vehicle.

CLP Multi-Mode Semi-Quick Charger
CLP Multi-Mode Semi-Quick Charger 

IEC62196   SAEJ1772   BS1363

European IEC62196
Standard Socket
3 phase, 220V, 32A

 

American SAE J1772
Standard Socket
1 phase, 220V, 32A

 

British BS1363
Standard Socket
1 phase, 220V, 13A

Uses a specialized fast-charger connected to a high powered electricity source. The high power greatly reduces the charging time. Nevertheless, it requires greater infrastructure investment, space and extra costs from buying specialized equipment. It is suitable for emergency charging purpose, public transportation such as taxis or mini-buses, or corporate fleets where the daily traveling range is long.

CLP Quick Charger
CLP Quick Charger

CHAdeMO
Japanese CHAdeMO
Standard Plug
DC, 50kW, 125A

Inductive Charging

No cable connection is required; instead the energy is transferred between the charger and the “paddle” inside the vehicle’s inlet via a magnetic field generated by a high AC current. Inductive charging requires additional steps and the inductive equipment is more complex and expensive.

By now, Inductive Charging for EV hasn't been adopted in Hong Kong.

Battery Swapping

This method does not charge the electric vehicles directly but replaces the depleted battery with a fully charged one. The batteries are not owned by the users but are rented at a cost to users. Users go to charging station to “swap” the batteries to fully charged ones. The time required is short but the vehicle used must be designed for such purpose. In addition, battery swapping station normally occupies huge space, which make this solution not suitable for Hong Kong.