Seasonal Record of Events in the Market

Collections of events that we see happening in the NEM, categorised in terms of the seasons in which they occur.









Background to Winter 2010 in the NEM

Inspired by the price spike experienced this evening, I have spent a little time to put together the background to winters in the NEM.

This will be useful in understanding the context of any other events that occur this winter, and are analysed on WattClarity.



Some context for the recent Basslink outage

I noted that the recent Basslink outage made the news today as a result of political point scoring in the Tasmanian parliament. As noted in the news report, the Basslink outage started on Saturday 17th April, and continued through until…



Demand Side Response in NSW on 4th February

On the 4th of February at around 11am energy users in NSW appear to have curtailed their load in response to high prices, resulting in a significant drop in demand. Simultaneously, network conditions and generator rebidding caused the NSW pool price to jump back and forth between extreme prices close to VOLL ($10,000/MWh) and the Market Floor Price (-$1,000/MWh).


Investigation of Negative Prices in Tasmania on 2nd & 3rd February

On the 2nd and 3rd of February this year prices spiked in South Australia and Victoria in the afternoon. Coinciding with these spikes, the Tasmania pool price went negative, close to the Market Floor Price (-$1000/MWh). In this article we take a look at the effects and possible causes of the negative prices.