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Metering and Consumption Rules

06 Feb 2023

The NABERS Metering and Consumption Rules is a standalone document that provides Assessors with information relating to Energy and Water metering systems and the treatment of consumption data from these systems.

The latest version of the Metering and Consumption Rules is version 2.0. (Please note below the transition period for this version to come into effect).

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    What’s new in this version?

    • A new chapter on generated energy and captured water, which replaces the On-site Renewable Electricity Generation (OREG) Ruling.
    • The rules for the Renewable Energy Indicator (REI).
    • A definition of the difference between Utility Metering systems and Non-utility Metering systems.
    • Treatment of metering consumption data from both types of systems.
    • Validation of non-utility Metering systems.
    • Small end use estimation.
    • Treatment of batch supplied energy and water sources.

    Transition period

    The NABERS Metering and Consumption Rules v2.0 will come into effect on 6 June 2023, coinciding with the launch of the Renewable Energy Indicator (REI) and the transition of Office ratings to the NABERS Perform platform.

    Prior to v2.0 of the Metering and Consumption Rules coming into effect, Assessors should continue to use v1.3.


    A Metering and Consumption course has been developed to support Assessors and can be accessed on the NABERS Learn platform. For more information, please visit NABERS Training.

    OREG Ruling

    The On-site Renewable Electricity Generation (OREG) Ruling has been incorporated as a new chapter into the Metering and Consumption Rules v2.0. The OREG Ruling will be revoked on 6 June 2023 when the Metering and Consumption Rules v2.0 come into effect.