Corporations registered under the
National Greenhouse and Energy Reporting Act 2007 (NGER Act) are required to report greenhouse gas emissions, and energy production and consumption to the Clean Energy Regulator (the agency), by 31 October each year. By 28 February each year, the agency publishes a point-in-time extract of scope 1, scope 2 emissions and energy production data specific to the electricity sector for the previous financial year.
Unlike the corporate emissions and energy data set, which is published at a controlling corporation level, the electricity sector emissions and production tables below are published at a designated generation facility level. This includes primary fuel source, emissions intensity and grid connection for each generator, as well as aggregated emissions and production for the entire sector.
Information as at 25 February 2021.
We define the following terms for the purposes of electricity emissions and generation data:
Designated generation facility: A designated generation facility is a facility where the principal activity is electricity production. Facilities that generate electricity for their own use or as a secondary activity are not considered a designated generation facility and therefore not included in this publication.
Emissions intensity: Emissions intensity data is defined as reported scope 1 emissions divided by reported electricity production. Electricity production is based on total generation reported through NGER, including electricity used by the facility. The emissions intensities in this report are based on data as reported to the agency and no adjustment has been made to reflect any specific circumstances. Emissions intensities elsewhere are more typically measured (including by AEMO) based on electricity sent out to the grid, which results in a higher emissions intensity per designated generation facility.
Grid-connected: Grid-connected refers to connection to a designated electricity network. The designated electricity networks are: the National Electricity Market, the South West interconnected system, the North West interconnected system, the Darwin to Katherine network, and the Mount Isa-Cloncurry supply network for the purposes of the safeguard mechanism.
Designated generation facility aggregates: If a report submitted under the NGER scheme contains a facility aggregate, and does not include disaggregated information for individual facilities, data will be published at the aggregated level.
Designated generation facilities cannot apply to have their facility level data withheld under section 25 of the NGER Act.
The agency publishes total electricity generation and emissions data to assist with tracking the sector in relation to the sectoral baseline as set under the safeguard mechanism.
Under the safeguard mechanism, a
sectoral baseline applies collectively to grid-connected generators. Under the
National Greenhouse and Energy Reporting (Safeguard Mechanism) Rule 2015 the sectoral baseline is set at 198 million tonnes carbon dioxide equivalent (CO2-e), based on electricity sector’s emissions from 2009–10 to 2013–14. If the
sectoral baseline is exceeded collectively by grid-connected generators, it will no longer apply and individual baselines will apply to generators.
In 2019–20, total reported scope 1 emissions from grid-connected generators was 155 million tonnes CO2-e.
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