VOLL (or MPC) in NSW today as high temperatures stretch supplies


A quick note today to give you a  head’s up on what’s been happening.

See the following snapshot from NEM-Watch v8:

2010-02-22 at 15-55 NEM-Watch

As you can see:

1)  Demand in NSW is relatively high (due to high temperatures) with reference to the all time minimum and maximum dispatch demand targets shown in the legend.

2)  A tight supply/demand balance in NSW has meant that imports have been required from both QLD and VIC.

3)  What appears to have been a drop in available generation capacity of 500MW in the NSW region (perhaps a unit trip) would not have helped the situation.

Hence prices have risen to the Market Price Cap (MPC) of $10,000/MWh

As can be seen in the following two charts of interconnector flows (generated with a single-click from NEM-Watch), we see that sudden changes in the import constraint limit (for QNI) and export constraint limit (for VIC-NSW) have been part of the issue (with the price spread across the interconnector shown, in each chart, in the grey bars):

2010-02-22 qni

2010-02-22-vic-nsw

About the Author

Paul McArdle
One of three founders of Global-Roam back in 2000, Paul has been CEO of the company since that time. As an author on WattClarity, Paul's focus has been to help make the electricity market more understandable.

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