Revisiting 2nd January 2013 in Queensland – to illustrate the interaction of rebidding and constraints


Frequent readers of WattClarity will have noted that we’ve been preparing a detailed review of what happened in Queensland over summer 2013 – what caused it, and why, and what the future implications might be.

For those who are interested, we’ve been doing this for reasons including these noted here.

It’s taken longer than we had anticipated – in part because of the complex interactions at play over summer, but also (significantly) because we’ve been striving to deliver something aligned with our mission of “making the complexity of the energy market more understandable, to a broad range of pictures.

As one of the case studies prepared in the course of completing this analysis, we have prepared this animated walk-through of a few of the many intriguing hours that occurred over summer – on this occasion the period in the morning of Wednesday 2nd January 2013, when there were four discrete price spikes above $300/MWh.


In Part 2 of our 3-part review, we have counted and analysed individual price spikes above $300/MWh for each day over the 4-month period we’ve been describing as summer.

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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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