A (Much) Deeper Dive into Friday March 1 2019
Guest author, Allan O’Neil, drills into considerable depth to understand, and clearly explain, some of what happened during a volatile period in the VIC and SA regions on Friday 1st March 2019
interconnector constraint
Factors contributing to an unforeseen price spike in NSW at 16:15 on Thursday 31st January 2019
Taking a brief (well, actually longer than intended) look into the various factors that delivered a price spike above $10,000/MWh on Thursday 31st January in NSW – and thinking through the implications for one particular Demand Response client, and for the broader market.
High SA Prices on Monday 9 July–Business as Usual?
One of our guest authors, Allan O’Neil, takes a closer look at what happened in the South Australian region of the NEM on Monday 9th July 2018
On Saturday 2nd September, AEMO reacted to Severe Weather Warning by imposing limits on interconnector
On Saturday 2nd September, AEMO responded to a BOM-issued “Severe Weather Event” warning by reducing flow capacity west on the Heywood link. Here’s how that looked…
High Regulation FCAS Prices on Tuesday 18th April in South Australia
Quick review of a spike in FCAS Prices in South Australia on Tuesday 18th April 2017 – leading to Administered Pricing for Raise Regulation Services.
Another day where LOR2 notice issued for SA – what does it mean?
AEMO issued a Market Notice this morning for an LOR2 “Low Reserve Condition” in South Australia. Here’s my sense of some of what’s happening.
Tassie price spike on Sunday
Some quick notes about a price spike this evening in Tasmania.
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).
VOLL (or MPC) in NSW today as high temperatures stretch supplies
A graphical summary of a day when temperatures soared in NSW, dragging demand higher and (with the assistance of a relative shortage of supplies) also dragging prices to VOLL
South Australia hits the Cumulative Price Threshold
For only the 5th time in 11 years of NEM history (and the 3rd time for South Australia) four consecutive days of price spikes have forced the Cumulative Price to the Threshold, and AEMO has imposed price caps to prevent retailers from going bust.
Prices spike in South Australia today
Some quick notes about another price spike today in the South Australian region of Australia’s National Electricity Market
Prices race in QLD and NSW as horses race in VIC
Tuesday 3rd November, and the temperatures that had driven prices higher in SA the previous day moved eastwards.
Whilst VIC demand was lower as everyone lost their shirts on a horse, demand climbed in NSW and QLD, dragging prices upwards as well.
The NEM wakes from its spring slumber
A quick review of some activity in the market on Monday 2nd November 2009 (and in particular a price spike in South Australia).
November in the NEM (a review of 10 years of history)
One of 12 articles on the months past in the NEM – investigating the trends and significant events in the National Electricity Market during November.
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.
NEMMCO Report: Unplanned Outages of HWTS-LYPS line on 23 July 2008
On 13th November, NEMMCO released the final version of its report into the Power System Incident “Unplanned Outages of HWTS-LYPS line on 23 July 2008”
VOLL Pricing on 23rd July 2008
It appears that we spoke too soon when we mentioned on the 22nd July that winter 2008 had been relatively uneventful.
Just over 24 hours from making these comments, we saw prices jump sky-high in the mainland regions, and go the other way (to the negative price cap) in Tasmania.
Our review of the heat wave in South Australia
With demand soaring, and interconnectors constrained, generators in South Australia and Victoria took what opportunity they had to force the price high. So successful were the South Australian generators that the Cumulative Price Threshold was reached in South Australia and, under NEM Rules, an Administered Price Cap was applied for a period of time.
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”.
22nd and 23rd February 2008 – a rare hot spell in Queensland
In Queensland we experienced one of the mildest summers I can remember. As a result of this, demand levels were subdued for most of summer. However, for a couple of days in late February, summer finally arrived, and struck with a vengeance.