But only if & when the wind blows, page-17

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10/04/19

11:23

Post #: 38075814
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Originally posted by Rob79: ↑

We could test the forecast theory tomorrow when a high pressure system moves across from WA to the eastern states. In the night it will be cold and there will be light winds. We have 6000MW Wind, 2500MW Utility Solar and around 7,000MW Rooftop solar. I estimate the NEM demand for electricity will increase above average of 22,000MW and the wind and solar will be around 600MW from around 6.00pm to 7.00am.

The new Dundonnell Wind farm is in Victoria South of the Salt Creek one so does little to diversify the concentration of wind output. For the diversified theory to be applied there should be no new wind or solar farms built in this region or they should only be built if accompanied with at least 12 hours storage. This wind farm has no storage.

Current wind output is also lower than the capacity factor used in the LCOE calculations and this means backup/storage would also be required today and therefore in theory may not be available tomorrow.

We have fortunately existing capacity to cover this today but that capacity is progressively being reduced. Everyday now we have live data to critically evaluate the past investment decisions and test the theories to ensure that new developments are consistent with the goal to increase reliability, lower cost and reduce emissions. The experiment is live and this situation is IMO not sustainable.

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Hi Rob79.

It's pretty obvious storage is the key to fixing this problem. AEMO is already talking about curtailment in many areas which contributes to the issue which you have identified.

Clearly, way more storage for these solar/wind farms are required.
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