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Australia: where too much wind will never be enough

By Tom Quirk - posted Tuesday, 22 January 2008


So, the final point on reliability of supply is that perhaps a geographical dispersal of wind farms will smooth out supply. In principle this is correct as the wind will be blowing somewhere but remote sites require expensive connections.

But the data recorded by NEMMCO for four wind farms in South Australia from north of Port Lincoln to the Victorian border, a distance of about 500km, shows strong correlations for wind output and no significant smoothing of supply. The reliability factor is less than 10 per cent. Even more interesting the Victorian wind farms also show a response correlated to the South Australian wind power output. It is no better in heatwaves which are times of peak demand.

None of this should actually be surprising as weather systems in south eastern Australia extend over 1,000km.

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Wind power has, so far, been the front runner for renewable power. But it can be seen that wind power is inappropriate for base load power. Policy makers should proceed cautiously gathering information. Theory should not be allowed to get in the way of experience.

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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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