Collections of events that we see happening in the NEM, categorised in terms of the seasons in which they occur.
Following several different warnings of high temperatures forecast for the lead-in to Tuesday 26th January 2021 (whatever you want to call that day) I’ve taken a quick look at what it’s currently forecast to mean for the NEM…
Wednesday 13th January 2021 was a busy day in the NEM, with a couple of different events occurring. In this article we explore a sudden and unexpected drop in output across both rooftop PV and large-scale solar in South Australia that delivered both price spikes, and also broader questions about emerging challenges for the grid (and market).
Today (Wed 13th Jan 2021) a high temperature alert published by AEMO for the Dalby area in southern QLD prompted a quick look at what the GSD2020 shows, in terms of high-temperature limitations of plant around the Dalby area.
A pretty rare event in the NEM, when two units trip simultaneously … so a short article on WattClarity as a result.
Using an in-development (but soon to be released) widget in ez2view we take a look at forecast availability for coal units in NSW, VIC and QLD for the critical, and normally volatile, Q1 period 2021.
Short note about what might be a new record low point for electricity demand in Victoria on Christmas Day 2020.
As we wind down for Christmas, recapping some developments (in Nov and Dec 2020) about high temperature limitations on generation technology across the NEM.
An unfortunately timed significant slump in output across all Wind and Large Solar plant in NSW was another of the factors contributing to the price volatility seen in NSW last week.
The publication by AGL Energy of the short note about the transformer incident (and injured worker) at Liddell unit 3 yesterday prompted me to have a quick look, following on from the volatility this week.
Third day in a row we see volatility in NSW (and QLD) … and this afternoon AEMO contracts, and then dispatches, Reserve Trader in NSW
Second day in a row the price spikes in the NSW region … higher and longer than yesterday. Low aggregate production from Wind and Large Solar across NSW today was clearly one other factor that contributed.
A quick look at a spike in NSW price this afternoon above $3,000/MWh due to a number of different factors … including a trip of unit 3 at Eraring coal-fired power station.
Earlier this afternoon we were alerted to a price spike in NSW and QLD that was seemingly caused by a unit trip at one of the larger generators in NSW.
Prompted by an SMS alert this evening, we take a look at the tight supply/demand balance currently forecast for the QLD region on Monday afternoon next week (30th Nov 2020).
From tomorrow (Fri 20th Nov) market participants in south-western NSW and north-western VIC will need to grapple with yet another transmission constraint seeking to ‘constraint down’ their output when it’s sunny and/or windy. This one is named ‘N^^N_NIL_3’.
Some brief notes about the impact that South Australia’s ‘Stay at Home’ order might have on demand in the region.
Third day in a row, and at exactly the same time as yesterday (Mon 17th Nov) the dispatch price in QLD spiked through the roof. Here’s a quick first look…
It’s not officially summer, yet – but it sure seems like it is across QLD and NSW. High temperatures drive some prices spiking up to the Market Price Cap in both ENERGY and some FCAS commodities as well…
In part 5 of this expanding Case Study of the unexpected price spike on Tuesday 13th Oct, linked to a large & sudden drop in output across 10 solar farms, we take a detailed look at the constraint set ‘Q-BCNE_821’ invoked to deal with the transmission outage between H11 Nebo (in ‘North’ zone) and H10 Bouldercombe (in ‘Central-West’ zone)
The prior record for ‘minimum demand’ in Victoria seems to have only lasted 8 short weeks, with the level nudged still lower on a sunny Sunday 1st November 2020 (coincident with a bit more freedom for Victorians after lockdown).