词条 | Draft:Renewable energy in Australia | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
释义 |
Renewable energy in Australia became a serious issue of public contention in the period 2006-2007 culminating in Australia's ratification of the UN's Kyoto Protocol in December 2007 following the election of Prime Minister Kevin Rudd. Although historically Australia has played a key role in research and commercialisation of renewable energy technologies{{Citation needed|date=July 2008}} much of this is being exported to Europe, Asia and the US{{Citation needed|date=July 2008}} with little representation of renewable energy in Australia's own energy mix{{Citation needed|date=July 2008}}. More recently, following the introduction of long term renewable energy targets more opportunities have been realised for deployment of new renewable energies{{Citation needed|date=July 2008}}, such as wind power, photovoltaics, and solar thermal. Australia's renewable energy industries now span numerous energy sources and stages of commercialisation{{Citation needed|date=July 2008}}. Renewable energy technologies currently contribute about 6 per cent of Australia's total energy supply and some 8 per cent of Australia's electricity supply, with hydro-electricity by far the largest single contributor.[1]{{TOC limit|limit=2}}Renewable energy in Australian states and territories{{See also|Wind power in Australia|Solar hot water in Australia|Solar power in Australia|Hydroelectricity in Australia|Geothermal power in Australia|Biofuel in Australia}}{{Expand section|date=May 2010}}Australian Capital Territory{{Main|Renewable energy in the Australian Capital Territory}}{{Expand section|date=May 2010}}New South Wales{{Main|Renewable energy in New South Wales}}{{Expand section|date=May 2010}}Northern Territory{{Main|Renewable energy in the Northern Territory}}{{Expand section|date=May 2010}}Queensland{{Main|Renewable energy in Queensland}}{{Expand section|date=May 2010}}South Australia{{Main|Renewable energy in South Australia}}{{See also|Wind power in South Australia}}The South Australian government has been responsible for some key renewable energy policies which have been reproduced in at the national level and in several Australian states and territories. South Australia was the first Australian government to introduce Feed in Tariffs, renewable energy rebates and other environmental initiatives. Wind Power South Australia has a large wind energy resource along the coastal regions in south-western South Australia, particularly the Eyre Peninsula. The majority of Australia's wind energy is produced in South Australian and exported to Victoria and New South Wales along great distances. Australia's renewable energy targets favour gross electricity generation rather than an integrated national approach to a renewable energy infrastructure and as a result investment into Australian wind energy has predominantly been invested in South Australia. Wind power in South Australia is a fast growing industry with 388 MW of grid-connected wind farms installed at the end of 2006. South Australia is well suited to wind farms and more wind power is generated in South Australia than any other Australian state or territory. South Australia had 15 per cent of its electricity coming from wind farms by the end of 2007.[2] A further 263 MW of generating capacity (Hallett Wind Farm, 95 MW, Lake Bonney Wind Farm (stage 2), 78 MW, and Snowtown Wind Farm, 90 MW) is under construction. {{Expand section|date=May 2010}}Tasmania{{Main|Renewable energy in Tasmania}}{{Expand section|date=May 2010}}Victoria{{Main|Renewable energy in Victoria}}{{Expand section|date=May 2010}}Solar Systems is to build the world’s most advanced[3] photovoltaic (PV) heliostat solar concentrator power station in north-western Victoria. The 154 MW, A$420 million project, will generate 270,000 MWh per year, enough for more than 45,000 homes. It will aid in reducing salinity and create jobs during manufacture, construction and operation. It will also reduce greenhouse gas emissions by approximately 400,000 tonnes per year.[3] Full commissioning is expected in 2013, with the first stage to be completed in 2010.[4]Western Australia{{Main|Renewable energy in Western Australia}}Australian renewable energy resourcesInstalled capacityAt the end of 2006, Australia had 817 megawatts (MW) of installed wind power capacity,[5] mainly in South Australia. A 154 MW, A$420 million, solar photovoltaic power station is planned for Victoria.[6] Initiatives are also being taken with ethanol fuel and geothermal energy exploration.[8] Hydro-electricityUnexploited resourcesAustralian renewable energy sectorsBiofuels{{Main|Biofuel in Australia}}Biofuels produced from food crops have become controversial as food prices increased significantly in mid 2008, leading to increased concerns about food vs fuel. Ethanol fuel in Australia can be produced from sugarcane or grains and there are currently three commercial producers of fuel ethanol in Australia, all on the East Coast. Legislation imposes a 10% cap on the concentration of fuel ethanol blends. Blends of 90% unleaded petrol and 10% fuel ethanol are commonly referred to as E10,[7] which is mainly available through service stations operating under the BP, Caltex, Shell and United brands. Not surprisingly, E10 is most widely available closer to the sources of ethanol production in Queensland and New South Wales. In partnership with the Queensland Government, the Canegrowers organisation launched a regional billboard campaign in March 2007 to promote the renewable fuels industry. Over 100 million litres of the new BP Unleaded with renewable ethanol has now been sold to Queensland motorists.[7] Biodiesel produced from oilseed crops or recycled cooking oil may be a better prospect than ethanol, given the nation’s heavy reliance on road transport, and the growing popularity of fuel-efficient diesel cars.[8] Biomass{{Main|Biofuel in Australia}}Biomass can be used directly for electricity generation, for example by burning sugar cane waste (bagasse) as a fuel for thermal power generation in sugar mills. It can also be used to produce steam for industrial uses, cooking and heating. It can also be converted into a liquid or gaseous biofuel.[9] Biomass for energy production was the subject of a federal government report in 2004.[10]Geothermal energy{{Main|Geothermal energy exploration in Central Australia|l1=Geothermal power in Australia}}Geothermal energy exploration in Central Australia involves finding vast blocks of "hot rocks" with fracture systems that could generate electricity through water being injected, circulated through the fractures, and being returned to surface as steam.[11]South Australia has been described as "Australia's hot rock haven" and this emissions free and renewable energy form could provide an estimated 6.8% of Australia's base load power needs by 2030.[11] According to an estimate by the Centre for International Economics, Australia has enough geothermal energy to contribute electricity for 450 years.[12] There are currently 19 companies Australia-wide spending $A654 million in exploration programmes in 141 areas. In South Australia, which is expected to dominate the sector's growth, 12 companies have already applied for 116 areas and can be expected to invest $A524 million (US$435 M) in their projects by the next six years. Ten projects are expected to achieve successful exploration and heat flows, by 2010, with at least three power generation demonstration projects coming on stream by 2012.[11] A geothermal power plant is already generating 80 kW of electricity at Birdsville, in southwest Queensland.[18] Hydropower{{Main|:Category:Hydroelectric power plants in Australia|l1=Hydropower in Australia}}Hydropower forms the bulk of renewable energy generation in Australia Ocean powerSeveral technologies for harvesting the power of the ocean are under development, including a wave energy system being trialled by Oceanlinx at Port Kembla. Wave power is especially suitable for desalinating seawater.[18] Photovoltaics{{Main|Solar power in Australia}}Solar photovoltaic (PV) technology generates electricity from sunlight, and it can be used in grid-connected and off-grid applications. The issue for the Australian photovoltaics industry today is that there is enormous market potential, built up through a natural competitiveness in Australian research and development, industry investment and government policy support. However, despite this, the industry is not yet self-sustaining and advantages gained to date could be lost.[13] A 2004 market report suggested that a partnership between government and industry is necessary:
Two recent projects which illustrate co-operation between industry and government are the solar power station planned for north-western Victoria, and the development of new solar cells. Solar thermal power{{Main|Solar power in Australia}}There are no large large scale solar thermal power stations in Australia, although the country has significant research, development and commercialisation efforts.[14] CSIRO's National Solar Energy Centre in Newcastle, NSW houses a 500 kW (thermal) solar central receiver system used as a research and development facility.[15]The Australian National University (ANU) has worked on dish concentrator systems since the early 1970s and early work lead to the construction of the White Cliffs solar thermal station. In 1994, the first 'Big Dish' 400 m2 solar concentrator was completed on the ANU campus. In 2005, Wizard Power Pty Ltd was established by Canberra investor Tony Robey in order to take the Big Dish technology to commercial deployment.[14] Wizard Power will construct a pilot power station at Whyalla to demonstrate a next-generation Big Dish design together with a chemical energy storage system using ammonia.[16] Research activities at the University of Sydney and University of New South Wales have spun off into Solar Heat and Power Pty Ltd (now Ausra), which is currently building a major project at Liddell Power station in the Hunter Valley. The CSIRO Division of Energy Technology has opened a major solar energy centre in Newcastle that has a tower system purchased from Solar Heat and Power and a prototype trough concentrator array developed in collaboration with the ANU.[14] Cloncurry, a north-west Queensland town, has been chosen as the site for an innovative $31 million (including a $7 million government grant) solar thermal power station. The 10 MW solar thermal power station would deliver about 30 million kilowatt hours of electricity a year, enough to power the whole town. Ergon Energy will develop the project which should be running by early 2010.[17][18] Solar water heating{{Main|Solar hot water in Australia}}During the 1950s, Australia’s Commonwealth Scientific and Industrial Research Organisation (CSIRO) carried out world leading research into flat plate solar water heaters. A solar water heater manufacturing industry was subsequently established in Australia and a large proportion of the manufactured product was exported. Four of the original companies are still in business and the manufacturing base has now expanded to 24 companies. Despite an excellent solar resource, the penetration of solar water heaters in the Australian domestic market is only about 5%, with new dwellings accounting for most sales.[19] Wind power{{Main|Wind power in Australia}}A typical wind turbine can meet the energy needs of up to 1000 homes. Wind power in Australia is clean and renewable and, at the end of 2006, there were 27 wind farms operating in Australia with an installed electricity generation capacity of 817 MW.[20] The technology is proven, fast to build and economical compared with other renewable energy technologies.[21] However, wind power may be unpredictable and difficult to store for use when most needed.[22] Renewable technology development in AustraliaPhotovoltaics{{Main|Photovoltaic engineering in Australia}}The Australian Research Council (ARC) plays a key role in advancing technology development in Australia. The ARC sponsors two research groups which are both credited internationally with significant advances in photovoltaic technology development. The ARC Centre of Excellence in Advanced Silicon Photovoltaics and Photonics is based at UNSW and hold records for high performance photovoltaic devices, the ARC Centre of Excellence for Solar Energy Systems is based at ANU also is credited with many technology advances including SLIVER and Dye Sensitized solar cells. Government policies and initiatives{{See also|Energy policy of Australia|Mitigation of global warming in Australia}}Under the leadership of Prime Minister John Howard Australia had been reluctant to ratify the United Nations' Kyoto Protocol due to concerns of reduced competitiveness with the US and China[23]. In December 2007 under the leadership of newly elected Prime Minister Kevin Rudd Australia ratified the agreement and is expected to meet its target of an 8% increase in greenhouse gas emissions. Australia is one of the countries most at risk from the effects of climate change. Australia is also one of the worlds largest exporters of coal and a powerful lobby group, unofficially known as the Greenhouse Mafia has made attempts to side rail public debate on the issue of climate change through threats of severe economic detriment. Fossil fuel subsidies{{See also|Greenhouse Mafia}}Australian governments provide substantial financial support for the production and use of fossil fuels through direct payments, favourable tax treatment and other actions. These subsidies keep the cost of fossil fuel energy artificially low and make it harder for renewable energy to compete. [24]The government's tax and spending policies are distorting the energy market, increasing end use of fossil fuels, increasing greenhouse gas emissions and increasing the profitability of mining fossil fuels.[24] Solar power rebatesThe federal rebate scheme for solar power encompasses three distinct industries with separate funds for each. The Remote Renewable Power Generation Programme (RRPGP) was established in 2000 to displace off-grid diesel generation using photovoltaics. The programme was initially funded with AU$ 205 million over ten years and was extended in 2006 with AU$ 123 million to 2011. The programme offers up to 50% of the capital expenditure for renewable energy projects which replace diesel generators. The Photovoltaic Rebate Programme (PVRP), established in 2000 is designed to increase the uptake of grid connected photovoltaic systems. The programme offers funding of $8 per watt to a maximum of AU$ 8,000 for residential customers or up to 50% for schools and community buildings to a maximum system size of 2 kWp. The programme initially offered $5.50 per watt which was later reduced to $4, in 2007 the rebate was increased to $8 per watt and in 2008 means testing was introduced which limited the offer to households with a combined income of less than AU$ 100,000. The initial reduction in the rebate was designed to prolong the programme and widen its reach{{Citation needed|date=May 2010}}. Critics have argued that rebate was increased to $8 to create hype in the 2007 election campaign and that the means test is unreasonable, a more appropriate measure would be to reduce the rebate back to $4{{Citation needed|date=May 2010}}. Solar hot water rebates were introduced in 2007 to replace electric water heating systems. Grants of up to AU$ 1,000 are offered to hot water systems provided they replace an electric heating system and produce 20 Renewable Energy Certificates (RECs). Renewable Energy Equity FundLow Emissions Technology and AbatementRenewable energy targets{{See also|Mandatory renewable energy targets}}In 2001 the Australian government introduced the Mandatory Renewable Energy Target (MRET) which is a market based incentive to encourage the deployment of renewable energy technologies. The mandate forces wholesale buyers of electricity to purchase a certain percentage from renewable sources. The scheme is accredited through Australian National Energy Market (NEM) with Renewable Energy Certificates (RECs) being issued for renewable energy generation at a rate of 1 REC per 1 MWh of renewable energy generation. MRET was first introduced by Prime Minister John Howard to increase Australia's renewable energy capacity to 9,500 GWh/year by 2010 and maintain that level of generation until 2020. By mid 2006 sufficient renewable energy had been installed or was under construction to meet the MRET target for 2010. In 2008 Prime Minister Kevin Rudd proposed the reformed Renewable Energy Target (RET) which will increase the target to 9,500 GWh by 2010 and 60,000 GWh by 2020. It is intended that the RET will replace other state wide schemes under a single national scheme. The reformed RET scheme is currently undergoing public consultation and is expected to be implemented by mid 2009. Combined with basic energy efficiency measures a target of 20% will produce 45,000 GWh of new renewable energy capacity, $33 billion in new investment, 16,600 new jobs, and 69 million tonnes reduction in electricity sector greenhouse gas emissions.[25] The RET is expected to play a key role in Australia's proposed Emissions Trading Scheme (ETS) whereby increased renewable energy capacity will reduce the need for high carbon prices in the first decade of the scheme. Australia's dependence on coal fired electricity generation is a major barrier to the ETS. The RET will ensure that in the period 2010-2020 the emissions cap can remain relatively unrestrictive while the phase out of the RET in 2020-2030 is can be replaced by tighter emissions caps enforced by the ETS. Emissions Trading Scheme{{Expand section|date=May 2010}}Feed in Tariff{{Expand section|date=May 2010}}Solar Cities{{Main|Solar Cities in Australia}}The Australian Solar Cities programme was established to demonstrate the viability of sustainable living in Australian urban centres. The AU$ 75 million programme is designed to engage with all levels of community, industry and government to develop an integrated approach and viable strategies to manage the environmental challenges of climate change. Presently the programme is running in Adelaide, Alice Springs, Blacktown, Central Victoria and Townsville, with plans to expand to Coburg and Perth. Key strategies include:
Renewable energy in the communityMarketing strategies of private companies, and government policies, influence the commercialisation process. Survey results suggest that there is considerable public support for the use of renewable energy and energy efficiency in Australia.[26] Survey results suggest that there is considerable public support for the use of renewable energy and energy efficiency in Australia. In one recent survey, 74% of respondents favoured a "greenhouse strategy based mainly on energy efficiency and renewable energy, and 19% favoured an "approach that focuses mainly on nuclear power and clean coal technologies."[27] The Australian results from the 1st Annual World Environment Review were based on a survey of 1,007 Australian men and women. They were published on 5 June 2007, and these are the main findings pertaining to renewable energy and energy efficiency:[28]
Greenhouse mafia{{Main|Greenhouse mafia||Guy Pearce}}The Greenhouse Mafia is the unofficial name of the alleged anti-climate change propagandist group operating behind the scenes in Australia. The term was first coined by ex-Liberal Party member Guy Pearce in his book High and Dry: John Howard, Climate Change and the Selling of Australia's Future which labels many influential figures in Australian government and business. Guy Pearce has made very serious allegations against Australian polluting industries and political figures relating to manipulation of Australian media, industry groups and government research institutes in the climate change debate. Leaked minutes from a 2004 meeting between leaders of energy intensive industries and the Australian government describe how both groups were worried that mandatory renewable energy targets were working too well and were "market skewed" towards wind power.[29] Dr Mark Diesendorf has suggested that the Howard Government tried to stop the development of wind power, the lowest-cost, new, renewable electricity source, until such time as coal-fired power stations with CO2 capture and sequestration and possibly nuclear power stations are available.[30] In 2006 after the MRET target had been reached several Federal Government Ministers spoke out against several wind farm proposals.[31] World Solar Challenge{{Main|World Solar Challenge}}The World Solar Challenge is a biannual solar car race from Darwin to Adelaide. Beginning in 1987 the race was developed to promote research into solar energy and sustainable transport and has attracted some of the world's most prominent automotive and technology organisations. By 2007 entrants into the race were limited by the South Australian speed limit of 110 km/h and it was deemed that the goal of building solar cars to cross the continent at vehicular speeds had been met. The focus of the race has now shifted to more practical concepts for solar vehicles which it is hoped will form the basis of mainstream solar transport. List of renewable energy power stations in Australia{{See also|List of wind farms in Australia|List of wind farms in New South Wales|List of wind farms in Queensland|List of wind farms in South Australia|List of wind farms in Tasmania|List of wind farms in Victoria|List of wind farms in Western Australia}}
List of Australian renewable energy organisations
See also{{Portal box|Energy|Australia|Environment}}
Further reading
References1. ^How solar ran out of puff Sydney Morning Herald, 17 April 2007. 2. ^The Natural Edge Project (2007).Benefits of Distributed Generation to Supply Base Electricity Demand 3. ^Solar Systems. Solar systems projects 4. ^Solar Systems. Solar systems facts sheet: the technology 5. ^Global Wind Energy Council,Global wind energy markets continue to boom – 2006 another record year 6. ^1 Australia advances with solar power The Times, 26 October 2006. 7. ^1 Queensland Government. Ethanol case studies 8. ^The biofuels promise: updated thinking Ecos, Oct-Nov 2006. 9. ^http://www.environment.gov.au/settlements/renewable/recp/biomass/index.html 10. ^http://www.rirdc.gov.au/reports/AFT/04-031sum.html 11. ^1 2 3 Big energy role for central Australia’s hot rocks Mineweb, 2 May 2007. 12. ^Scientists get hot rocks off over green nuclear power Sydney Morning Herald, 12 April 2007. 13. ^1 Australian Business Council for Sustainable Energy. The Australian Photovoltaic Industry Roadmap p. 1. 14. ^1 2 Lovegrove, Keith and Dennis, Mike. Solar thermal energy systems in Australia International Journal of Environmental Studies, Vol. 63, No. 6, December 2006, p. 797. 15. ^'CSIRO Gets Sun Smart at the National Solar Energy Centre', June 2008, http://www.csiro.au/places/SolarEnergyCentre.html 16. ^'Solar Power Station for Australia', The Warren Centre, Aug 2007, http://www.warren.usyd.edu.au/bulletin/NO51/ed51art6.htm 17. ^Cloncurry to run on solar power: Bligh 18. ^Australian town to run on solar power in 2 years 19. ^Lovegrove, Keith and Dennis, Mike. Solar thermal energy systems in Australia International Journal of Environmental Studies, Vol. 63, No. 6, December 2006, p. 793. 20. ^1 2 Energy superpower or sustainable energy leader? (PDF) Ecos, Oct-Nov 2007. 21. ^Australian Greenhouse Office, National code for wind farms: A discussion paper May 2006. 22. ^Wind not the answer to our needs The Age, 30 December 2005. 23. ^Australian Government (2004). Securing Australia's Energy Future 24. ^1 {{cite paper|first=Christopher|last=Riedy|title=Subsidies that Encourage Fossil Fuel Use in Australia|version=Working Paper CR2003/01|publisher=University of Technology, Sydney Institute for Sustainable Futures|url=http://www.isf.uts.edu.au/publications/CR_2003_paper.pdf|format=PDF|accessdate=2008-07-05}} 25. ^Australian Conservation Foundation (2007). A Bright Future: 25% Renewable Energy for Australia by 2020 26. ^Australians Reject Nuclear Energy Angus Reid Global Monitor, 25 June 2007. 27. ^Australians Reject Nuclear Energy Angus Reid Global Monitor, 25 June 2007. 28. ^First Annual World Environment Review Poll Reveals Countries Want Governments to Take Strong Action on Climate Change Global Market Insite, 5 June 2007. 29. ^Minutes of a meeting of the Low Emissions Technology Advisory Group (LETAG) with the Australian Government 6 May 2006. 30. ^Diesendorf, Mark (2007). Greenhouse Solutions with Sustainable Energy, UNSW Press, p. 109. 31. ^Diesendorf, Mark (2007). Greenhouse Solutions with Sustainable Energy, UNSW Press, p. 107. 32. ^Wind energy round the clock 33. ^Edwards solar hot water 34. ^Origin Energy. SLIVER technology facts sheet 35. ^Geodynamics. Geodynamics: Power from the earth 36. ^Solahart Industries 37. ^Solar Systems.Solar Systems wins National Engineering Excellence award 38. ^Solar technologies reaching new levels of efficiencies in Central Australia ABC Radio Australia, 12 November 2006. 39. ^Solar Systems to Build A$420 million, 154MW Solar Power Plant in Australia 40. ^Solar Systems. Solar Systems home page 41. ^Solar Systems. Solar systems projects External links
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