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Baselines

29 July 2022

NGER​​​

Under the safeguard mechanism, facilities are given a baseline which is the reference point against which net-emissions levels will be assessed. A safeguard facility must keep its net emissions levels at or below its baseline.

There are four main types of emissions baselines:

  • Production-adjusted baselines — determined based on actual production levels. A production adjusted baseline can be fixed based on the highest year of production during the calculated or benchmark baseline period (see below), or annually adjusting based on actual production for each year.
  • Calculated baselines— determined based on an independently audited forecast of production and either forecast emissions intensity provided by the responsible emitter or the default emissions intensity value.
  • Benchmark baselines— based on benchmark emissions intensities (that is, the best, least emissions intensive standard for production) and an independently audited forecast of production. A landfill-benchmark baseline will be based on a benchmark capture efficiency rate for non-legacy emissions.
  • Reported baselines— determined based on the historical high point of emissions reported under the National Greenhouse and Energy Reporting scheme between 2009-10 and 2013-14. Reported baselines cease on 1 July 2021. Facilities will need to apply for a different type of baseline for 2021-22, onwards.

A facility must exceed the 100,000 tCO2-e threshold to be covered by the safeguard mechanism. A baseline cannot be set below this level.

If a facility does not have one of the four types of baselines, then a default emissions baseline of 100,000 tonnes of carbon dioxide equivalent (tCO2-e) will apply.

In some circumstances a facility covered by the safeguard mechanism may apply for a baseline variation.

A summary of all types of emissions baselines

Baseline Criteria Determined by Duration Earliest start
DefaultDesignated large facility with no other type of baselineSafeguard RuleOngoing unless replaced by another baseline1 July 2016
Production-adjusted

Either:

  • Existing or expired calculated, or benchmark baseline; or
  • Open to any facility applying for an annually adjusting baseline using default emissions intensity values.
Upon application using actual productionOngoing unless replaced by another baseline1 July 2018
Calculated
  • Transitional (from 1 July 2018)
  • Inherent emissions variability
Upon application using independent audit approachGenerally 3 years1 July 2016
BenchmarkNew or significantly expanded facilities from 2020Best-practiceGenerally 3 years1 July 2021
LandfillLandfill facilities that exceed coverage thresholdUpon application using landfill baseline emissions formulaOngoing1 July 2020
SectoralGrid connected electricity generatorsSafeguard RuleUntil breached1 July 2016
ReportedNGER facilities with five years of data (2009-10 to 2013-14)Based on historic high point Ceased on 1 July 20211 July 2016

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