Temperatures in the stratosphere may influence electricity supply
Stratospheric warming over Antarctica may have helped bring about the extended period of strong winds in the southern NEM regions.
VIC
How rare are simultaneous price spikes in all five NEM regions, like what we saw last night?
A short examination of some of the over-arching factors at play yesterday evening – where prices spiked above $3,000/MWh in all five regions simultaneously.
Rare NEM-wide price spikes on Monday July 29th 2024
Already this evening we’ve seen a rare occurrence of price spikes in all five NEM regions simultaneously.
A bounce back: a review of Q2 2024 prices
We just witnessed another eventful Q2, with at least four drivers contributing to significant price volatility. This is our annual review of Q2 prices, where we compare these outcomes against the long-term trend.
VIC Demand Running above Forecasts on 22nd February 2024
A brief chart to capture VIC demand climbing above expectations.
Recapping the accelerating decline in ‘Minimum Demand’ levels across the NEM, at the end of 2023
A tabular summary of how ‘declining demand’ has been an accelerating theme in most regions of the NEM (and NEM-wide) through 2023.
Part 3 … Victorian demand holding up at higher levels than successive AEMO forecasts
Third article today, focusing on an apparent anomaly between AEMO’s P30 and P5 predispatch forecasts for Victorian demand today (Sun 31st Dec 2023).
Part 2 – What’s running in Victoria today (apart from strong rooftop PV)?
A second article today on this challenging day for the Victorian grid, looking at which supply sources are running.
Demand in Victoria drops to a new lowest point on Sunday 31st December 2023, and AEMO flags possible intervention (Part 1?)
First article today, recording a new ‘lowest ever’ point for demand in Victoria (Sun 31st Dec 2023), and possible intervention from AEMO has it looks to drop further, leading to possible grid instability.
Brief but sudden drop of ~1,740 MW of wind and solar generation across the NEM this afternoon Monday 5th December 2022
An email alert notified me of a sudden drop in wind and solar generation (primarily in VIC and SA) at around 3pm this afternoon.
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!
Evening volatility on Tuesday 15th June 2021
It was volatile this morning well past that’s become ‘normal’ and the volatility has returned (as I expected it would) this evening. Here’s the snapshot of the 17:20 dispatch interval from one of our NEMwatch v10 dashboards: As highlighted: 1) …
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.
White knuckle ride across the NEM on Friday 31st January 2020 (extreme NEM-wide demand)
Today (Fri 31 January 2020) saw NEM-wide demand reach levels never seen before (excepting 29th January 2009). This was just the start of the white knuckle ride.