What was the cause of the coincident trip of Eraring units 1 and 2?
It’s Monday 8th April, the two Eraring units that tripped last week are back online – and I wonder what the cause of the coincident trip was?
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 inertia supplied by source in the NSW grid on Tuesday 14th November 2023
With GenInsights Quarterly Update for 2023 Q4 completed, and some time till the end of 2024 Q1, we’ve looked back at Tuesday 14th November 2023 (when AEMO had concerns about low System Strength in NSW) and looked at the level of inertia actually seen in the grid. A useful Case Study to say ‘what would have happened without Eraring?’
Background information about the Victorian Big Battery and the SIPS service (System Integrity Protection System)
Prompted by the other article today, I’ve taken a look at published information about the required operations of the Victoria Big Battery (VBB) under the System Integrity Protection System (SIPS).
ESIG Report ‘New Resource Adequacy Criteria for the Energy Transition’
Last week I was notified of the release of a new ESIG report ‘New Resource Adequacy Criteria for the Energy Transition’, which will be of interest to some WattClarity readers.
Where’s that major planned outage for YWPS1 go?
A client question (for GenInsights Quarterly Updates) recently prompted a quick look at the delay to the start of the planned outage for Yallourn Unit 1.
Three recent news media articles about the replacement of (and/or short term delay to closure of) Eraring Power Station
Worth noting these three recent news articles from the past 8 days, all pertaining to the slated closure of the Eraring Power Station as early as 19th August 2025 (under 18 months away), but reporting different perspectives.
Case Study of Sunday 12th November 2023 (lowest point for Aggregate Scheduled Target in 2023)
A 2nd short article falling out of GenInsights Quarterly Updates for 2023 Q4. This one looks at Sunday 12th November 2023 and shows the lowest point in 2023 for NEM-wide Aggregate Scheduled Target (and the largest ramp in Q4).
Case Study of Friday 8th Dec 2023 (big gyrations in Aggregate Scheduled Target)
A short article looking at Friday 8th December 2023 looking at NEM-wide Aggregate Scheduled Target on the day.
Keeping Up with the Curtailment: 3.7TWh of semi-scheduled economic and network curtailment estimated in 2023
A chart of the the month-by-month semi-scheduled economic and network curtailment totals, along with the top 3 worst hit units over 2023.
A look into the performance of Genex’s four DUIDs in 2023, following takeover bid from J-Power
A quick look into performance of Genex’ four DUIDs over 2023, as news broke this morning of a takeover bid from the Japanese-based J-Power.
So how much did Eraring Power Station supply, of the NSW electricity consumption, at peak demand time on Thursday 29th February 2024?
Last article (on the day) about Thu 29th Feb 2024. Prompted by an AFR article just over 24 hours ago, how large was the contribution of Eraring Power Station to the NSW electricity region today?
It appears bushfire smoke was negatively impacting rooftop PV production in a material way in Victoria yesterday
Some interesting data coming from our forecast convergence widget yesterday afternoon, hinted to us that bushfire smoke is likely to have been impacting rooftop PV generation levels in Victoria.
Four reasons why rooftop solar will grow to dominate the electricity market
Tristan Edis of Green Energy Markets argues how system longevity, battery-coupling, distribution network capability, and increasing capacity will shore up rooftop PV’s position in the market.
System Strength considerations for NSW via Market Notices … a low point reached in 2023 Q4
AEMO points to the TransGrid document from Wed 14th Feb 2024 ‘NSW Synchronous Generation – interim advice for System Normal requirement’.
Convective downdrafts and high-voltage transmission lines
In light of another transmission tower collapse caused by convective wind gusts, we’ve invited wind loading expert Dr John Holmes to explain this phenomena.
A major blackout left 500,000 Victorian homes without power – but it shows our energy system is resilient
Dr Roger Dargaville from the Monash Energy Institute argues that Tuesday’s events in Victoria were a showing of a system resilience, and not fragility.
Some *initial* headline questions following the transmission damage, unit trips & loss of load, initiated on Tuesday 13th February 2024
What happened yesterday (Tue 13th Feb 2024) in Victoria was a significant event in the history of the NEM – and the flow on effects will be felt for weeks and months (even years?). Here’s a starting list of questions we’d like to explore…
Another tower collapse poses more questions about transmission
The sixth transmission tower failure within the NEM in almost four years, has prompted further questions about the physical network and its resilience to severe convective winds.
Engie announces early closure of two dispatchable South Australian power stations
It was an article in the AFR, on the 6th of February 2024, that drew our attention back to generator closures. Engie have announced the early closure of Snuggery and Port Lincoln Power Stations.
What is the point of the RRO?
Ben Skinner asks some philosophical questions about the Retail Reliability Obligation (RRO), and provides some commentary about its past and future.