Australia |
General energy system and GHG emissions |
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Energy in Australia is derived
predominantly from fossil fuels (crude oil (34%), black coal (29%), natural
gas(18%), brown coal (13%)) with renewables comprising only 6%. In 1997, over
48% of Australia's total primary energy was consumed by the industrial
sector, 27% by the transportation sector, 15% by the residential sector and
10% by the commercial sector. Sectoral energy-related carbon emissions mirror
the sectoral distribution of energy consumption, with 46% resulting from the
industrial sector, 28% from the transportation sector, 15% from the
residential sector and 11% from the commercial sector. General information on Australia´s economy, energy systems, the fossil fuel reserves, environment are provided at the Energy Information Administration . |
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Detailed information
regarding national GHG inventories, climate change, research activities,
projects etc. are available at the
"Second National Communication"
(Australia´s Second National Report under
the United Nations Framework Convention on Climate Change, November 1997).
It gives an overview of the national circumstances that influence
Australia´s response capacity, an provides an update of both the
continuing and additional strategies and measures that have been adopted
to address the enhance greenhouse effect.
The Third
National Communication was released in August 2002. The National Greenhouse Gas Inventory provides the latest report on Australia's greenhouse gas emissions. This inventory incorporates improvements in data collection methods that have been used to update emission estimates in the 1990-2000. In 1999, Australia's net greenhouse gas emissions totalled 458.2 million tonnes of carbon dioxide equivalent excluding the contribution of the Forest and Grassland Conversion (land clearing) subsector. Total net national greenhouse gas emissions (not including land clearing) increased by 17.4% (67.9 Mt) over the period 1990 to 1999. From 1998 to 1999, emissions increased by 1.1% (4.9 Mt). The Energy sector accounted for 79.6% of total net national emissions in 1999. Energy emissions increased by 21.7% from 299.5 Mt to 364.6 Mt between 1990 and 1999, with a sharp rise from 1994 to 1998. Stationary Energy (comprising Energy Industries, Manufacturing Industries and Construction, Other Sectors, and Other) was the main contributor, accounting for 56.7 % (259.8 Mt) of total net national emissions, followed by Transport with 16.1% (73.9 Mt). Stationary Energy emissions increased by 24.6% (51.3 Mt) between 1990 and 1999, and by 1.2% (3.2 Mt) from 1998 to 1999. Agricultural emissions made up 20.5% of the total for 1999. Agriculture contributed 93.8 Mt in 1999, a 1.9% (1.7 Mt) increase from 1998 and a 2.9% (2.7 Mt) increase from 1990. The Forestry and Other subsectors constituted a sink of 25.9 Mt in 1999 (equivalent to 5.6% of total net national emissions). The net sink decreased by 5.1% (1.4 Mt) since 1990 but increased by 3.3% (0.8 Mt) since 1998. Industrial Processes and Waste are minor sources of emissions contributing 2.1% (9.7 Mt) and 3.5% (16.0 Mt) of total net national emissions respectively. Emissions from Industrial Processes decreased by 19.8% (2.4 Mt) between 1990 and 1999 primarily due to reductions in perfluorocarbon emissions from aluminium smelting. There was a 1.8% (0.2 Mt) decrease from 1998 to 1999 as a result of further reductions in perfluorocarbon emissions. Waste emissions increased by 7.6% (1.1 Mt) between 1990 and 1999, and increased by 3.2% (0.5 Mt) from 1998 to 1999 due to an increase in methane generated and a decline in methane recovered from solid waste. Incorporating the current best estimate of land clearing emissions, Australia's total net emissions were 529.9 Mt CO2-e in 1999 and 493.8Mt CO2-e in 1990. On this accounting basis, emissions are estimated to have increased by 7.3% (36.1 Mt) between 1990 and 1999, and 0.8% (4.2 Mt) from 1998 to 1999. The ABARE Research Report 99.4 provides information on market developments and projections to the year 2014-2015 and covers all energy sources, all states and all sectors of the Australian economy. |
General description of bioenergy systems |
| Bioenergy in Australia Six per cent of total energy use in Australia comes from renewable sources. Renewable energy use is expected to expand significantly in Australia in the next decade. This is due both to market forces and government initiatives, such as the mandatory extra 2% target for renewable energy in the electricity market and a range of other programs administered by the Australian Greenhouse Office. Most of Australia has an abundance of sunlight and many parts have good wind, water or biomass resources.Bagasse currently represents about 2% of Australia's total primary energy consumption (Bush, Harris & Ho Trieu 1997). The steam produced from bagasse is used to drive sugar cane mills, for process heating, and for grid-connected electricity production. The sugar mills in Queensland, NSW and WA have a combined capacity of about 300MW (DPIE 1997). The increasing use of more efficient conversion systems and additional fuel inputs could easily treble electricity production from bagasse. Wood represents 2.4% of Australia's total primary energy consumption (Bush, Harris & Ho Trieu 1997). About 75% of the heat energy produced from this wood is consumed as firewood in the residential sector, with about 22% of homes using fuelwood for primary heating (DPIE 1997). The remaining heat energy is used in the wood products, paper and food industries. Hydro and solar represent 21% and 1%, respectively, of total energy use. In the electricity sector, current use of renewable energy contributes approximately 10.7%, most of which is generated from large-scale hydro electricity schemes. |
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The installed electricity generating capacity from landfill gas in Australia was
about 72MW in 1997 (DPIE 1997). Landfill gas projects are a recent development,
with only 15 projects currently operating in Australia
(Australian Greenhouse Office 1998).
As the majority of landfill sites do not have gas recovery
systems, there is significant scope for the expansion of landfill gas
utilisation, but it will be unlikely to reach more than 300Mwe installed
capacity. The use of sewage gas for electricity production is increasing in Australia. In 1997, the installed sewage gas electricity generation capacity was about 7MW, which represents a 59% recovery of methane from wastewater treatment plants (Australian Greenhouse Office 1998). The capacity is expected to treble by the year 2010. |
| Australia produces about 40 million litres per annum ethanol from molasses and starch wastes.
The Australian Renewable Energy Website
provides data on wind, biomass, solar, wave and hydro energy. |
Bioenergy activities in Australia currently include:
Proposed activities include:
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Land use, land use change, and forestry |
| The Australian Bureau of Statistics
provides information on land use, land use change and forestry. Forests in
Australia cover about 157 million hectares, which account for around 20% of
land use. Just over one million hectares of these are plantations.
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| Forestry: In the National Greenhouse Gas Inventory (NGGI)
(see chapter 3, page 29 of the
"Second National Comunication"),
managed forests, vegetation thickening on
some cleared land and pasture improvement are the major means of carbon
dioxide removal. The Forestry and Other subsectors constituted a sink of 25.9 Mt
in 1999 (equivalent to 5.6% of total net national emissions). The net sink decreased
by 5.1% (1.4 Mt) from 1990 to 1998 but increased by 3.3% (0.8 Mt) since 1998.
Increasing the area of production forests, particularly through reforestation and farm
forestry, provides an important opportunity for carbon sequestration, especially where
there is low initial carbon content in soil and vegetation. Vegetation: While there is considerable uncertainty in the data, the NGGI indicates that vegetation clearance for agriculture contributes significantly to Australia's greenhouse gas emissions. Increasing vegetation cover is an important means of broader objectives of ecologically sustainable development. In agriculture, for example, sustainable farming practices support productivity and the long term viability of agricultural enterprises. The maintenance and enhancement of vegetation cover can play an important role in the control of erosion and salinity. |
| The Australian Greenhouse Office The National Carbon Accounting System (NCAS) tracks greenhouse gas sources and sinks from the land. |
National policies and measures |
The Australian
National Greenhouse Strategy outlines action to be taken by
Australia such as:
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The Australian Greenhouse Office (AGO)
is a government agency dedicated to cutting greenhouse gas emissions. It was established
in 1998 as a separate agency within the environment portfolio to provide a whole of
government approach to greenhouse matters, in recognition that greenhouse abatement
is a cross-cutting issue. All sectors of the economy are implicated in the production of
greenhouse gases. Similarly, each sector also presents opportunities for greenhouse abatement.
The Government's $1 billion climate change agenda therefore targets emissions abatement on many
fronts, including the following initiatives:
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| The 2020 Vision, launched in October 1997 is a partnership between Commonwealth,
State and Territory governments and industry that aims to treble the plantation
area from about 1 million hectares in 1997 to 3 million hectares by the year 2020.
In the early 1990s, the plantation estate was expanding by about 25 000 hectares a year.
In 1999, the annual rate of planting had increased to nearly 95 000 hectares - exceeding
the 2020 Vision target of planting at least 80 000 hectares a year.
The majority of new plantations are occurring on cleared agricultural land and most
are the result of substantially increased private investment. With the necessary land
resources and an investment climate ranking with the best in the world, high productivity
gives Australia an advantage over many other nations with similar resources. At least
3 million hectares of land across Australia - used mainly for marginal sheep and cattle
production - is suitable for forestry plantation, so there is significant potential for
plantation expansion. The Greater Green Triangle on the Victoria/South Australia border and
Western Australia's South West are the major regions of recent plantation expansion.
Further information is provided by the
Media Release of the
Minister for Primary Industries and Energy. Bush for Greenhouse program encourages revegetation for greenhouse and other environmental benefits. A carbon broker has been appointed, and carbon accounting tools have been developed, to facilitate carbon trading from environmental plantings. |
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Action in the energy sector is identified as a national priority, essential for
achieving the goal of limiting net greenhouse gas emissions. Major changes to the
electricity supply industry resulting from micro-economic reforms currently underway
nationally, and in a number of jurisdictions, aim to remove barriers to competition
and introduce a national electricity market. Australia has seen steady growth in the
use of natural gas in the energy sector, for electricity generation and for direct
use. As a result of micro-economic reforms in the electricity and gas
markets, this trend is expected to continue, resulting in a lowering of the
average greenhouse gas intensity of energy. |
| Renewable Energy Programs Australia has several programs to support increasing use of renewable energy. These include:
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| The Australian Government introduced the Mandatory Renewable Energy Target on 1 April 2001. The Renewable Energy (Electricity) Act 2000 requires the generation of 9,500 gigawatt hours of extra renewable electricity per year by 2010, enough power to meet the residential electricity needs of four million people. |
| Bioenergy Australia
was formed in1997 and is an alliance of government and industry organisations promoting
the development of bioenergy in Australia. Its activities include:
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Regional and local policies and measures |
| Electricity supply accounts for one third of North South Wales (NSW) greenhouse gas emissions with the
majority of electricity being generated from the combustion of coal. The NSW Electricity Retailer Greenhouse Benchmarks policy aims for a 5% reduction in per capita greenhouse emissions from electricity generation over 1989 level by 2007. A penalty of up to $15/t CO2 will be imposed for non-compliance. Carbon sequestration by sinks is an allowed abatement option. NSW Sustainable Energy Development Authority (SEDA) promotes sustainable energy technologies, through education, support for commercialisation, and introduction of greenpower and building rating programs. |
Implementation projects |
Examples of bioenergy projects
The Cooperative Research Center (CRC) for Greenhouse Accounting provides a report "Management Options for Carbon Sequestration in Forest, Agricultural and Rangeland Ecosystems". The Bureau of Rural Sciences with University of Adelaide have produced a Bioenergy Atlas of Australia that details available biomass resources. |
Research programs |
The Cooperative Research Center (CRC) for Greenhouse
Accounting has several objectives including :
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Other important links |