Questions about electricity bills with closure of Liddell looming
Around eight days till the scheduled closure of Liddell’s next-to-close unit (and prompted by an article in the AFR), we take a quick look at how they’ve been bidding.
Energy Transition
A large collection of articles pertaining to the ongoing ‘Energy Transition’ in any of a number of ways.
Specific sub-categories relate to such things as Coal Closure, and other aspects of the transition.
Case Study of 17:05 on 27th October 2022… Part 4: the geographical spread of +861MW AggROT
In the fourth instalment of this ongoing case study, Dan Lee maps the locations and contributions of the semi-scheduled units that contributed to the +861MW Aggregate Raw Off-Target that occurred on the afternoon of October 27th 2022.
Reviewing what happened in NSW and QLD on Thursday 16th March 2023 (with Actual LOR2, Volatility and Reserve Trader almost triggered, etc) … part 1
Given the significance of the event (Reserve Trader almost triggered on Thursday 16th March – 34 days till the closure of Liddell Unit 4) we’re investing some time in exploring more detail of the event. This is Part 1.
Case Study of 17:05 on 27th October 2022 … part 3 … (+861MW AggROT – source of AvailGen)
In Part 3 of this Case Study, we look at the source of the Dispatch Interval Availability forecasts for these units at 17:05 on 27th October 2022 (i.e. Self-Forecast or something else, incl AWEFS/ASEFS).
Case Study of 17:05 on 27th October 2022 … part 2 … (+861MW AggROT – individual units)
In Part 2 of this Case Study, we look at those 15 x Semi-Scheduled units highlighted with large deviations (mostly under-performance) at 17:05 on 27th October 2022 in order to understand more.
Case Study of 17:05 on 27th October 2022 (+861MW AggROT for Semi-Scheduled units) … Part 1 of (an uncertain number)
In Part 1 of this Case Study, we start to look at the large collective under-performance across all Semi-Scheduled units (i.e. Wind and Large Solar) at 17:05 on 27th October 2022. More to come in subsequent parts…
Some revelations in GenInsights Q4 2022 about Aggregate Raw Off-Target for Semi-Scheduled units
In today’s article (a third snippet from GenInsights Quarterly Update for Q4 2022) we take a look at levels of large ‘Aggregate Raw Off-Target’ (i.e. large collective deviations away from Target), which continue to grow for the Semi-Scheduled category and remind us of that question …
Observation 13/22 from GenInsights21 – is the Semi-Scheduled category sustainable or scalable?
Here on this site, and also in real discussions in the offline world, we have been pondering this question for a number of years. For instance, it was pondered in Theme 13 (‘What’s the future for Participation Categories in the…
Coal generation gets a run in the UK to ensure supply meets demand
Another quick article today – this to record the rare use of coal in the UK on a cold evening with insufficient other supply.
A quick look at EnergyAustralia’s outage plans for Yallourn Power Station
Prompted by the massive loss reported by CLP for its EnergyAustralia business, and plans for major outages for 4 units at Yallourn, we took a quick look using ez2view at outage plans.
Has adding wind and solar upped the need for FCAS in the NEM?
Allan O’Neil digs through historic FCAS enablement and utilisation levels to examine whether there is an increasing trend in recent years.
Current expectation for closure dates of Liddell and Eraring Power Stations
Drawing from GenInsights Quarterly Update for Q4 2022, and the next version of our ez2view software, we take a look at the *current* expectations for closure of Liddell Power Station (within weeks) and Eraring Power Station (in 2025). A segue into this week’s update to the ESOO, perhaps?
Darwin to Dili: The contrasting challenges in Timor-Leste during an energy transition
Dan Lee provides this write-up of a recent study tour to Timor-Leste and reflects on lessons learned about how the transition is affecting developing nations.
Investigating last Friday’s frequent frequency swings
Allan O’Neil provides an explainer about how small deviations in supply and demand are managed in the NEM, in order to help us understand the apparent swings in frequency that we noted in QLD last Friday.
Farewell Liddell
Guest author, Allan O’Neil, takes the release of the GSD2022 as an opportunity to take a look at the past 10 years of performance of the four-unit Liddell Power Station (one unit closed in 2022 and three to close soon in 2023), contrasting against two other black coal-fired stations.
What does ‘Rethinking Capitalism’ mean, for the National Electricity Market?
We thought it would be worth linking to Jim Chalmers’ article this week in The Monthly, as it seems these ideas will have (more) implications for the National Electricity Market.
Coal crunch within sight, with Eraring scheduled closure in 19th August 2025
One other thing noticed this morning was the scheduled drop in coal availability in spring 2025 (not just because of Eraring’s scheduled closure).
How closely monitoring households’ energy data can unleash their solar outputs and (possibly) make them more money
UQ’s Richard Bean and Neil Horrocks discuss a project they are involved with that would enable network operators to see household voltage and current data in real time.
How common are islandings and transmission tower failures in the NEM?
In light of recent events, Dan Lee does some digging to find historical incidences of islandings and transmission tower failures.
Price Caps to be implemented on Gas and Coal (perhaps?) … with impacts to be felt in the NEM
Striving to catch up on a couple weeks away, today I’ve tried to piece together the current state of deliberations about the potential (and rushed) implementation of caps on domestic gas and coal prices feeding into the NEM.