Antinuclear

As Victoria gives the green light for a massive $650 million wind farm with up to 104 turbines at Dundonnell, 200 kilometres west of Melbourne, and with talk of more wind farms in NSW a Liberal senator has been calling for a moratorium on new turbines until the Productivity Commission examines what they are doing to prices.

“There should be no further subsidies paid for an intermittent and unreliable power source that can be seen as as proven failure,” Senator Chris Back is quoted as saying, in an apparent attempt to prejudge the inquiry he is calling for.

On the face of it, it’s an odd idea: that adding a new and very cheap source of power should push up prices (wind turbines cost next to nothing to operate). And for the record, it’s not true. South Australia has more wind turbines than any other state. They supply more than one-third of its power. Yet a graph prepared by the Australian National University’s Hugh Saddler shows that South Australia’s average electricity price was much higher when they only provided 10 per cent.

The complaint is about spot prices, those instant short-lived prices the big industrial users have to pay if they haven’t insured against sudden movements, as a lot have not………

With fewer coal-fired plants, and with wind plants scattered throughout the nation, the system has the potential to work surprisingly well. Energy analyst David Leitch points out that in South Australia most of the wind turbines fire up at the same time, but if they were also placed in northern NSW and Tasmania (where the wind blows at very different times) each would fill the other’s gaps.

South Australia and Tasmania overlap only 10 per cent of the time. At other times, the gap would be filled by storage: either batteries or water storage as wind power pumps water up to the top of mountains while the wind’s abundant and lets it drop through hydro plants when it’s not.

Wind needn’t be a problem, regardless of what you’ve been told. But it does leave very little role for coal, which supplies base load power for which a wind-dominated system would have little use.

With fewer coal-fired plants, and with wind plants scattered throughout the nation, the system has the potential to work surprisingly well. Energy analyst David Leitch points out that in South Australia most of the wind turbines fire up at the same time, but if they were also placed in northern NSW and Tasmania (where the wind blows at very different times) each would fill the other’s gaps.

South Australia and Tasmania overlap only 10 per cent of the time. At other times, the gap would be filled by storage: either batteries or water storage as wind power pumps water up to the top of mountains while the wind’s abundant and lets it drop through hydro plants when it’s not.

Wind needn’t be a problem, regardless of what you’ve been told. But it does leave very little role for coal, which supplies base load power for which a wind-dominated system would have little use. http://linkis.com/www.theage.com.au/co/1H46Y