Summary for homeowners

In Queensland, installing a home EV charger that draws more than 20 amps requires active device management to manage electricity demand. Evnex chargers comply with this regulation by offering a 20A nameplate rating (4.6 kW), meeting the rules without additional hardware or restrictions.


Supported options:

1. 20A nameplate rating (recommended): Provides out-of-the-box compliance without extra hardware, delivering 4.6 kW (~25 km range per hour). Future upgrades can enhance charging speed with device management.

2. Primary tariff with basic device management: Uses a network control device to allow full 32A (7.4 kW) charging capacity. Note, supply interruptions may occur during peak grid demand. 


3. Load control tariff: Connects the charger to an economy tariff (Tariff 33/31), providing full 32A (7.4 kW) charging at reduced rates. Note, supply is switched off during set periods daily, and solar charging isn't compatible. 


Unsupported option (for now—this may change in future):

1. Primary tariff with dynamic connection: Employs active device management for two-way communication between the grid and charger to adjust charging rates as needed. Currently, Evnex does not support this arrangement.

What are the requirements?

In Queensland, the updated Queensland Electrical Connection Manual (QECM version 4) requires chargers with nameplate ratings greater than 20 amps to have active device management in place. A single-phase dedicated EV charger which draws more than 20 amps must be connected by one of the following arrangements:

• Primary tariff with basic active management via a network device.
• Load control tariff using a network device.
• Primary tariff with a dynamic connection.

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Exception for three-phase chargers

Note: The above device management options do not apply to three-phase chargers.

Energex extract below:

If you have three-phase wiring in your home, you can install a dedicated charger up to 22kW, if it is connected and switched simultaneously across all three phases.

Compliant charging options

Evnex has developed a solution whereby the customer can comply while maintaining uninterrupted supply to their charger, with no additional hardware and meet the requirements of the QECM by having a name plate rating of 20 Amps (4.6 kW). Then, if they choose, they can install active device management at a later time.

Note that Evnex does not currently support the Primary Tariffs with Dynamic Connection arrangement.

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Extra information for installers

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Note: Evnex does not provide installation of device management for managed installations.

Customers who proceed with a single-phase charger installation will be automatically adjusted during installation to be compliant by reducing the nameplate rating to 20 amps. This nameplate rating cannot be adjusted by the Driver by any means.

If the customer decides to install device management, this can be organised directly with their energy retailer post-installation. Evnex support can assist with moving Evnex chargers onto other compliant methods.

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The following link provides further information and explains the process for submitting Electrical Work Requests - EV charging & connections | Energex

Further information on the compliance methods

• 20A nameplate rating
• Primary tariff with basic device management
• Load control tariff
• Primary tariff with dynamic connection