price volatility






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).




Tassie hits the Cumulative Price Threshold

For only the third occasion in the 10 1/2 years that the NEM has been operational, the Cumulative Price Threshold (CPT) has been reached. Yesterday evening, the CPT was reached in the Tasmanian region.





January in the NEM (a review of 10 years of history)

One of 12 articles on the months past in the NEM. For January we revisit events such as the fires at Moomba in 2004 (which curtailed gas supplies from central Australia); and the blackout on 16th January 2007 which drove the price to VOLL in Victoria.



March in the NEM (a review of 10 years of history)

One of 12 articles on the months past in the NEM – covering notable events of March, such as the unforgettable South Australian heatwave of 2008 which caused the Cumulative Price to reach the Cumulative Price Threshold for the first time in our memory.




Volatility in the market over winter 2007

Our Managing Director spoke at the “Australian Energy & Utility Summit 08” in Sydney on Tuesday 22nd July 2008, touching on issues including the extremes of price volatility that were experienced over winter 2007.


“Power Prices Jump in Eye of the Storm”, from the AFR

Following from an alert to the situation provided by NEM-Watch, Duncan Hughes published an article “Power Price Jump in Eye of the Storm” that mentioned the extremely low levels of NEM-Wide Instantaneous Reserve Plant Margin (IRPM) that had occurred for a 60-minute period over both days.


Analysis of price volatility in the QLD region over summer 2007-08

Our Managing Director was asked to speak at the “Queensland Energy” conference in Brisbane on Wednesday 12th March – specifically addressing the topic of price volatility in the NEM.

To provide the basis of discussion during the conference, we focused our analysis solely on Queensland region (to make the topic more manageable).
In our review of volatility in the Queensland region, we focused specifically on 3 core attributes of the market: Queensland dispatch prices; NEM-Wide Instantaneous Reserve Plant Margin; and the concept of “Economic Islands”.