GSD requirements for Energy Queensland

Generation Signalling Device (GSD) requirements for Energy Queensland (Ergon Energy, Energex)

 

What is a Generation Signalling Device (GSD)?

This is a device installed on a solar system which allows the electricity utility (Energy Queensland) to switch off the solar system remotely.  A signal is sent to the GSD via the power lines using Audio Frequency Load Control (AFLC).   The GSD receives the signal and switches the solar system either OFF or ON depending on the signal received.

 

What solar systems require a GSD?

Grid connected solar systems with an aggregated capacity of 10kVA and above.  For large solar systems with multiple inverters the installer can either install one GSD on each inverter or install a single GSD connected to a Demand Response Controller.  There are some exclusions such as inverters that are solely supplied by a battery, and inverters located in an area not serviced by Energy Queensland’s AFLC system.  This is usually remote locations and fringe of grid areas.

To find out if the AFLC system is available at the premises you’re installing solar at, click on the links below and enter the National Metering Identifier (NMI) for the premises.

Energex

Ergon Energy

 

When is a GSD required to be installed on solar systems?

From 6 February 2023.

 

Does a GSD need to be installed on a replacement inverter? 

Yes, unless the inverter is being replaced under warranty.

 

What does a GSD look like?

Below is an example off what a GSD looks like.

Figure 1:  What a GSD looks like

 

How is a GSD installed?

The GSD utilises the existing connection available for the demand response mode function on the inverter – this is via an external port or internal terminal block, depending on the make and model of the inverter.   The GSD is typically mounted in the switchboard where it obtains a power supply.  The control cable is connected to the inverter.

 

 

Figure 2:  How to install the GSD

 

Figure 2:  How to wire the GSD to the power supply

 

To view a schematic diagram showing how the GSD is wired please click here

The image below shows a typical external DRM port on an inverter which the GSD control cable is connected to.

Figure 3:  Example of an inverter DRM port

 

Who installs the GSD?

The GSD is installed by the solar installer when the inverter is being installed.

 

What does a GSD cost?

Approx $100.

 

Where to buy a GSD?

AC Solar Warehouse – contact us for details.

 

More information

For more information on requirements for Ergon Energy please click here

For more information on requirements for Energex please click here

Contact

  • Email

  • info@acsolarwarehouse.com

  • Phone

  • Australia: 07 4028 3979

  • New Zealand: 09 222 2262

  • Postal

  • PO Box 408, Cairns

  • Queensland 4870

  • Main office

  • 310 Spence Street, Bungalow

  • Queensland 4870

  • Warehouses

    • Brisbane

    • Hemmant 4174

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    • Riverwood 2210

    • Melbourne

    • 14 Sugar Gum Court

    • Braeside 3195

    • Perth

    • Cannington 6107

    • Adelaide

    • Gillman 5013

    • Cairns

    • Bungalow 4870

    • Auckland

    • New Zealand

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