After the storm: Looking at Q2 2023 price trends, one year on from an Energy Crisis
One year on from a market-wide suspension, Dan Lee provides a review of Q2 prices for 2023 so that we can examine some of the longer-term price trends.
Tasmania
Vedran’s note today, about ‘more wind than hydro in Tasmania’ for early morning Thursday 25th May 2023
Prompted by a LinkedIn update by Vedran Kovac (at Hydro Tasmania) we’ve taken a quick look at the supply mix in Tasmania during the current week.
Palmerston to Waddamana lines returned to service on December 2, 2022
A successful return to service for the Waddamana to Palmerston 220 kV lines following damage sustained during landslides on 14 October 2022.
Run of volatility in Tasmania on Monday morning 14th November 2022
A run of volatility lasting several hours in Tasmania on Monday morning 14th November.
AEMO releases preliminary report into Tasmanian event on Friday 14th October 2022 (i.e. Article 5 in our series)
On Friday 28th October, the AEMO released its preliminary report into the storm damage to Liapootah – Palmerston 220 kV lines (loss of more than 500MW of load, and trip of Basslink and multiple generators)
Slightly more detail on System Frequency on Friday 14th October 2022 (Part 4)
Zooming into the ~7 minute period during which the initial event occurred in TAS on Friday 14th October 2022.
Several different timeframes for investigating the major Tasmanian system event beginning Friday 14th October 2022
Third article on what happened on Friday 14th October 2022 – sharing a photograph of the damaged transmission (thanks to TasNetworks for the photo, and Zeus for the weather) and outlining a number of different timescales that could be considered with respect to this event.
Sequence of events in Tasmania on Friday 14th October 2022 (initial look)
On Friday 14th October we saw a significant system event in Tasmania – with storms downing power links, leading to large (530MW) loss of load and trip of Basslink. In this article we take a first look at the sequence of events…
530MW loss of electrical load in Tasmania on Friday 14th October 2022
Some quick notes of a sizeable loss of load in Tasmania and a volatility situation that is ongoing as I hit ‘publish’ at 11:50 NEM time.
TAS spot price at $15,100/MWh with near-record Market Demand … and NEM-wide IRPM hits a low of 4.33% Tuesday morning
Second article this morning, highlighting the very tight supply-demand balance.
Bizarre pricing continues outside of the QLD region
At 22:40 the price exceeds $10,000/MWh in NSW, VIC and SA … with QLD under Administered Pricing.
After AP is imposed in QLD, volatility started elsewhere
Volatility has ramped up in NSW, VIC, SA and TAS (particularly SA) with QLD under Administered Pricing.
Severe weather in TAS causes disconnects customer load – and coincides with transmission line trips
Recap of some transmission trips overnight in TAS … coincident with severe weather.
Tasmania sees its own spell of volatility on Saturday evening 4th June 2022
A brief look at a period where the TAS region experienced prices up at $15,100/MWh Market Price Cap.
Tight supply-demand balance on Monday evening 30th May 2022 drives prices high and IRPM low
A very quick summary of market volatility touching all regions across Monday 30th May 2022 … but particularly in the evening.
Ten hours of prices above $100/MWh overnight, across *all* regions
I’m greeted this morning with a view of how prices have remained stubbornly elevated all the way through 10 hours overnight… in all regions!
AEMO releases preliminary report into TAS Market Suspension on 1st March 2022
A short note about the AEMO preliminary report, published 16th March 2022 – into the TAS market suspension on 1st March 2022.
Market suspended in Tasmania on March 1st 2022
This afternoon the AEMO alerted of a market suspension in the TAS region, which coincided with the failure of two undersea fibre cables that caused parts of the state to lose internet access.
Looking back at a Q2 2021 period that’s been anything but boring
Now making it 5 out of the past 6 years, we return to the analysis of electricity (spot and futures) pricing patterns for Q2 periods across the NEM regions … and also in Western Australia. We see a number of ways in which Q2 2021 was ‘anything but boring’!
The accelerating rise of Negative Prices in the NEM
A longer-term trend of the incidence of negative prices across each region of the NEM … and, most interestingly, the pattern by time of day.