Wind intermittency: South Australian wind farm performance during a January 2009 heatwave. This is the sum of the output of six wind farms with a total capacity of 388MW. Total South Australian wind farm capacity is 740MW. There is little contribution from wind power during peak demand times, 7 per cent of installed capacity.
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Generator marginal costs for the national market: marginal costs are largely fuel costs. Note the low cost Victorian generators and the spread of costs for South Australia.
Carbon tax and generator marginal costs for the national market: marginal cost advantages have largely disappeared. Note the spread of costs for South Australia.
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About the Author
Tom Quirk is a director of Sementis Limited a privately
owned biotechnology company. He has been Chairman of the Victorian Rail Track
Corporation, Deputy Chairman of Victorian Energy Networks and Peptech Limited
as well as a director of Biota Holdings Limited He worked in CRA Ltd setting up
new businesses and also for James D. Wolfensohn in a New York based venture
capital fund. He spent 15 years as an experimental research physicist,
university lecturer and Oxford don.
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