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Changes in the national energy mix

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05 March 2018

Each year, Australian corporations that meet certain thresholds must report their emissions and energy information under the National Greenhouse and Energy Reporting scheme. This captures about 60 per cent of Australia’s total emissions and 80 per cent of energy consumed.

Under the National Greenhouse and Energy Reporting Act 2007 the Clean Energy Regulator publishes a point-in-time extract of electricity sector emissions and generation data each year.

Graph of electricity production by fuel source and scope 1 emissions Electricity production by fuel source and scope 1 emissions

The electricity sector remains the largest contributor to total emissions—accounting for 52.4 per cent of all reported scope 1 emissions. However, in 2016–17 there was a notable reduction in reported scope 1 emissions in the electricity sector of -2.7 per cent on 2015–16 levels1 (5.0 Mt CO2-e). This is largely due to less generation from emissions intensive sources such as brown coal (down 2.1 percentage points from 2015–16), and more generation from less emissions intensive sources, such as renewables (up 0.8 percentage points from 2015–16.

We expect that with ongoing investment in large-scale and small-scale renewables, and the upgrade or closure of emissions intensive facilities, the national energy mix will continue to evolve, resulting in further emissions decreases in the electricity sector in future years.

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Footnotes

1 Figures for previous years have been updated to account for report resubmissions.

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