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Australian carbon credit unit supply

19 March 2019

Data on the supply of Australian carbon credit units (ACCUs) indicates the volume of ACCUs likely to come forward to meet the various sources of demand in the market. There are currently three main sources of supply for ACCUs:

  • existing Emissions Reduction Fund (ERF) projects
  • new and expanded Emissions Reduction Fund projects, and
  • ACCUs held in the Australian National Register of Emissions Units (ANREU).

Registered Emission Reduction Fund projects

Supply from registered projects has increased significantly from 15.4 million total ACCUs issued by the end 2014–15, to 59.2 million ACCUs by 1 March 2019. As shown in the cumulative registered projects graph below, project numbers have also increased significantly from 278 projects at the end of 2014–15, to 773 projects registered as at 1 March 2019.

While vegetation, waste and savanna burning projects continue to make up a large proportion of the project portfolio, projects registered under methods such as energy efficiency, industrial fugitives and agriculture have increased their share in recent years.

Cumulative projects registered by method type (2012–13 to 2018–19)

*2018–19 data is as at 1 March 2019.

The ACCUs issued by method type graph below shows the number of ACCUs issued has been dominated by vegetation, waste and savanna burning projects with ACCUs issued to energy efficiency projects from 2016–17 and industrial fugitives and transport projects from 2018–19.

In March 2019, the first issuance to a soil carbon project was published on the ERF Project Register signalling a new source of supply emerging.

While total ACCUs issued reduced by one million in 2017–18 (12.2 million) compared to 2016–17 (13.2 million), issuances for 2018–19 are currently tracking 12 per cent higher than 2017–18 with 7.7 million ACCUs already issued compared to 6.8 million at the same time last year.

ACCUs issued by project method type (2012–13 to 2018–19)

*2018–19 project numbers are as at 1 March 2019.

Emissions Reduction Fund projects supply data

ACCU supply data is published each week on the Clean Energy Regulator Emissions Reduction Fund project register, including a description of the project, project location, project method, whether the project is currently contracted, and the number of ACCUs issued to each project.

The ERF occurs through projects across Australia, and in many cases, through methods for the land sector. These methods are area-based and include increasing soil carbon, expanding opportunities for environmental and carbon sink plantings, and reforestation.

The Clean Energy Regulator has recently published mapping files for all ERF area-based projects. These will be updated weekly with the ERF Public Register and are now available on the National Maps website.

It is important to note that for sequestration projects the project area does not generally represent the actual extent of a project activity which is generally a subset of the project area. These subset areas are known as Carbon Estimation Areas (CEA) which are defined by rules set out in the individual ERF methods. A project can contain one or many CEAs.

New and expanded projects

Additional supply of ACCUs may be required from new and/or expanded Emissions Reduction Fund projects to meet future demand. There are currently over 30 Emissions Reduction Fund methods to register projects under. The current average lead times for projects by method graph below shows it is important to realise that supply from new projects is constrained by the lead times for new projects to start generating ACCUs. Emissions Reduction Fund projects generally take between one to two years from when they are registered before they are issued their first ACCUs. Once projects are registered, they may then generate ACCUs from 7 to 25 years, depending on the method.

Current average lead times for projects under different methods (from project registration to first ACCU issuance)

ACCUs in the Australian National Register of Emissions Units

The number of ACCUs held in the Australian National Register of Emissions Units (ANREU) indicates the maximum supply potentially available to the market at a point in time. New supply through issuances of ACCUs occur throughout the year as participants submit claims for units for projects, while demand occurs through ACCU deliveries, surrenders, cancellations and relinquishments.

While a surplus of ACCUs may be available in ANREU at any one time it is not a clear indicator of liquidity in the market. It is likely only a proportion of the ACCUs in ANREU may be available to trade on the secondary market, as some may be held or banked for future demand.

The below table shows the net balance of ACCUs in the market at 1 March 2019 and quantifies the aggregate demand from various sources over the period from 2012.

ACCU market balance as at 1 March 2019

ACCUs issued59,224,215
ERF contract deliveries39,523,577
Carbon pricing mechanism surrender14,458,807
Voluntary and state/territory government826,769
Safeguard mechanism surrender516,359
ACCU relinquishments79,343
Balance3,819,360

The below graph shows how the supply of ACCUs has increased to meet increases in demand from 2015–16 to 2017–18.

Historical supply and demand balance of ACCUs

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