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Changes to Inverter Standards

What is Happening?

In December 2020, Standards Australia released a new version of AS/NZS 4777.2 Grid connection of energy systems via inverters Part 2: Inverter requirements (AS/NZS 4777.2:2020).

The update included a range of changes to:

  • improve inverter performance on the electricity network, and
  • support increased adoption of solar Photovoltaic (PV), batteries and electric vehicles.

From 18 December 2021, amendments to the National Electricity Rules (NER) will require all grid connected inverters to comply with AS/NZS 4777.2:2020. Inverter manufacturers have been working to update their products to meet 2020 certification compliance and listing with the Clean Energy Council.

When do I need to start installing AS/NZS 4777.2 compliant inverters?

You can apply for a connection with an AS/NZS 4777.2:2020 inverter already. However, from 18 December 2021 it will be mandatory to apply for and install an AS/NZS 4777.2:2020 inverter.

When is the last date I can apply to install a 2015 compliant inverter?

Please submit applications to install an inverter that complies with AS/NZS 4777.2:2015 by Friday, 12 November 2021 to ensure you receive a connection offer by 18 December. We cannot guarantee that applications received after this date would receive a connection offer by 18 December.

Please also check that applications submitted by 12 November are correct and complete. This will avoid delays that could prevent Essential Energy completing our assessments by 18 December.

If I have a valid contract in place for a 2015 compliant inverter before the 18 December, can I install after the 18 December?

Yes. However, AS/NZS 4777.2:2015 compliant inverters installed from 18 December 2021 will not be eligible to receive STCs under the Small-scale Renewable Energy Scheme (SRES). For more information see the Clean Energy Regulator’s Website News item - Changes to Inverter Standard - AS/NZS 4777.2:2020.

What do you need to do?

  1. Review the information above and ensure that any connection applications for an AS/NZS 4777.2:2015 compliant inverter are submitted prior to 12 November 2021.
  2. Communicate this information to relevant members of your organisation.

Further information

Further information can be found on the Clean Energy Council and Energy Networks Australia Website.