This information is for those interested in the installation of public charging infrastructure. It outlines types of charging systems and electric vehicle supply equipment (EVSE) and provides recommendations for public charging point connectors. and socket outlets. The recommendations have been made to help achieve interoperability of New Zealand’s public charging infrastructure network.
These recommendations will help ensure that New Zealand’s public charging infrastructure:
There are two broad types of public charging systems.
DC powered charging in New Zealand is typically fast charge. These systems generally provide charging at a rate of up to 50kW (at this rate a Nissan Leaf would be charged to 80 percent full in around 20 minutes). This type of charging is suited to locations serving inter-city EV drivers, where drivers want to make shorter stops, or where the infrastructure provider wants to encourage a rapid turnover of users.
AC powered charging is provided in a range of charging speeds. Typical AC systems provide drivers with a charging rate of 7 to 22 kW (at the lower rate, a Nissan Leaf would be fully charged within eight hours). This is more suitable for locations where drivers stop for longer or where a high turnover of users is less important. There are also AC systems available which can provide a higher-powered charge (up to 43kW).
The charging station supplies and manages the electricity that is supplied to the EV and ensures that the charging of the EV is safe.
The supply cable transfers electricity from the charging station to the vehicle connector on the EV. It also provides communication between the vehicle and the charging station, allowing the vehicle and charging station to work together to control how and when the vehicle is charged.
The supply cable may be hard-wired into the charging station (i.e. “tethered”), or it may be connected to the charging station by a plug on the supply cable inserted into a socket outlet on the charging station.
The supply cable-EV connection comprises of a connector on the supply cable and an inlet on the vehicle.
The types of charging connectors¹ that relate to New Zealand’s EV fleet are as follows:
|TYPE 1 AC
This is a standard connector for AC charging. It has origins in the US but is also a standard connector in use in Japan. Some European-origin EVs also use this connector.
|TYPE 1 DC CCS Combo 1
This connector is used in the US for DC charging and was also adopted for some European-origin EVs.
|CHAdeMo DC (recommended for New Zealand)
This connector is used for DC charging in Japan and is currently the most common connector used for DC charging in New Zealand. It is also used in the US and in Europe.
TYPE 2 or Mennekes AC (Recommended for the connection of the supply cable to the charging station when using untethered cables)This connector has become widely used across Europe.
Models with Mennekes inlets in New Zealand include:
EU DC CSS Combo TYPE 2 DC (Recommended for New Zealand)
This is a fast DC charging connector used extensively across Europe. The industry in New Zealand is adopting this connector, alongside the CHAdeMo, for fast (and possibly slow) DC charging.
Used on Tesla cars imported from US or Japan.It has fast DC and AC, and slow AC, charging capabilities.
Note: these proprietary chargers are not installed in New Zealand; however a Tesla supplied accessory can be used to charge from a CHAdeMo or CCS Type 2 connector.
It is recommended that DC fast charge installations have at least two tethered cables:
one fitted with a CHAdeMo connector, and
one fitted with a CCS Type 2 connector
It is also recommended that an additional Type 2 socket outlet is provided at the charging station (for relatively fast AC charging for selected vehicles).
It is recommended that all public slow charge installations have a Type 2 socket outlet.