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NABERS Renewable Energy Indicator

NABERS will soon be launching the Renewable Energy Indicator (REI) that will transparently display how much renewable energy a building is running on.

What is the Renewable Energy Indicator?

The REI is a new indicator that NABERS will be launching in 2023. It displays the proportion of renewable energy that a rated building is running on.

It will be provided and displayed on the NABERS certificate for free with every NABRES Energy rating.

When will it be launched?

The REI is expected to be launched for all building types in late Q1/early Q2 of 2023. Once launched, it will be a mandatory part of a NABERS Energy rating, meaning that all premises getting a NABERS Energy rating will also obtain a REI result.

What is considered as renewable energy in the REI?

The indicator will be calculated based on how much of the buildings total energy consumption is renewable energy.  

The indicator will recognise the following sources of energy as renewable energy: 

  • Renewable electricity from the Mandatory Renewable Energy Target and other State/Territory-based renewable energy targets (for example the retirement of LGCs on behalf of consumers in the ACT) 
  • Accredited GreenPower purchases 
  • Offsite renewable energy purchases (through the voluntary surrender of Large-scale Generation Certificates) 
  • Onsite renewable electricity consumed (unless Large-scale Generation certificates are created and sold). 

It is important to understand that the REI takes into account the electricity, gas and diesel consumption of the building, not just the electricity consumption. For example, a building that runs on 100,000MJ gas and 100,000MJ of renewable electricity will get an REI of 50%.  

Will there be any change to NABERS Energy ratings?

The launch of the REI will have no impact on NABERS Energy ratings and how they are calculated. It will however impact how GreenPower purchases are displayed.

Calculation of NABERS Energy ratings:

There will be no change to the calculation of NABERS Energy ratings, including how onsite renewable electricity is treated.

Currently, if a building consumes electricity from an onsite renewable electricity system, this provides a benefit to the NABERS Energy rating as less electricity is being drawn from the grid (even if Large-scale Generation Certificates are sold). This will continue to be the case once the REI is launched.

Display of NABERS Energy with GreenPower rating results:

NABERS Energy with GreenPower rating results will no longer be displayed on the NABERS Energy rating certificates, instead the REI result will be displayed.

For a transition period of 2 years, the NABERS Energy with GreenPower result will continue to be calculated and provided in the rating report. After the 2-year period, the NABERS Energy with GreenPower result will no longer be calculated or provided in the rating report.

How can I find out more?

Prior to the launch NABERS will release a number of resources to help building owners and NABERS Assessors prepare for the REI:

  • New chapter on the REI in the Metering and Consumption rules – coming soon 
  • REI information webinar for existing assessors – coming soon 
  • Estimate your REI excel tool – coming soon 
  • REI factsheet – coming soon

If you have any questions on the REI, please get in touch with NABERS on nabers@environment.nsw.gov.au.