Today in the National Energy Market. Via
Ketan Joshi's twitter account. Illustrates what happens when it's very windy.
South Australia. Note the shut down of Augusta power plant leaving just the gas and wind:
Victoria. Note the wind biting into brown coal generation and the behaviour of hydro and gas as engaging during higher price/demand periods:
New South Wales. Lower wind penetration there, clearly plenty of potential:
And the whole NEM (includes Queensland and Tasmania as well as NSW/SA/Vic). At this scale we can see wind being fairly smooth, the hydro that supplies most of Tasmania also being smooth, and black coal slowly going up and down with demand:
A picture of scale. South Australia is a great success story starting from effectively zero maybe 6 years ago. But it is only small, and still only has limited interconnects for exporting its wind power to Victoria and NSW.
And here's the last week in wind capacity. This shows how much wind generation is available from point to point.
The important thing to note is wind is forecast in advance, so the market knows what conditions are coming. It's another wrinkle of market complexity for the market and generators to factor in, rather than wind being a technical challenge to integrate. The NEM's manager, AEMO, has said wind integration has been successful, secure and low cost.