Case Study of 03:10 on Saturday 28th September 2013 (aggregate Raw Off-Target +331MW for Semi-Scheduled units)
Third case study today - and last one looking back at 2013. This one is a bit more complex than the first two.
Articles by Paul McArdle
Paul was one of the founders of Global-Roam in February 2000. He is currently the CEO of the company and the principal author of WattClarity. Writing for WattClarity has become a natural extension of his work in understanding the electricity market, enabling him to lead the team in developing better software for clients.
Before co-founding the company, Paul worked as a Mechanical Engineer for the Queensland Electricity Commission in the early 1990s. He also gained international experience in Japan, the United States, Canada, the UK, and Argentina as part of his ES Cornwall Memorial Scholarship.
Case Study of 12:35 on Wednesday 14th August 2013 (aggregate Raw Off-Target +391MW for Semi-Scheduled units)
Like was the case on 4th July 2013, the cause of this large Aggregate Raw Off-Target result (across all Semi-Scheduled Generators) was a single unit trip.
Case Study of 14:55 on Thursday 4th July 2013 (>300MW Aggregate Raw Off-Target across all Semi-Scheduled Units)
Does not take long to see why this particular dispatch interval was one of the few dispatch intervals (before 2019!) flagged in our top-down analysis of aggregate Raw...
AEMO released 2020 Integrated System Plan (ISP)
A back-dated article about the AEMO's 2020 ISP
Revenues for Wind Farms (and Solar Farms) in the NEM take a hit
A question over the weekend prompts this article, which follows from discussions to a Vestas-organised audience about revenue patterns and trends for Wind Farms in the NEM.
Extrapolating from the trend of ‘Aggregated Raw Off-Target’ results, to yield some clues to what the future might hold … and one challenge for NEM 2.0
Following on from Friday's article (which considered the AER Issues Paper) this article delves into more detail of those extremes of 'Aggregate Raw Off-Target' across all Semi-Scheduled units...
Striving to understand the underlying challenges with Semi-Scheduled generators (re AER Issues Paper)
Prompted by the recent AER Issues Paper (submissions on that due today - Friday 24th July) but also aware that I've not yet published some broader thoughts in...
The NEM consumes (at least) 10GW of supply from renewable plant on Sunday 19th July 2020
A short review, as it happens, on a day where renewable production reached 10,000MW in aggregate across the NEM.
Four headline challenges amongst a very busy summer 2019-20
My participation in yesterday's session about ‘Energy Technology – performing under (heat) stress’, organised by the Australian Institute of Energy, was an opportunity to reflect on what I...
Difficult to determine (i.e. minor) reduction in daily NEM-wide aggregate ‘Underlying Consumption’ in 2020, the (first?) COVID year
For several reasons I've updated my view of how daily aggregate Underlying Electricity Consumption has been trending across the NEM in this 'Year of COVID'.
AEMC issues 3-month delay to the commencement of Five Minute Settlement
The rule change that delayed the start of 5MS to 1st October 2021
It’s good news that time-weighted average prices for Q2 2020 are down on prior years – right?
Spurred by a number of concurrent requests I've returned to the pattern of prior analysis of Q2 prices (completed in 2016, 2017 and 2018) to look at what's...
‘Too Low for Zero’ as a parable for the AER Issues Paper?
Here's an attempt to translate the concern underlying the AER Issues Paper into 'plain English' via the popular song.
‘Energy Technology – performing under (heat) stress’ – discussion on Friday 17th July 2020
In the midst of winter, it would be easier to forget the stresses that the NEM encountered over the prior summer 2019-20. Thankfully, the Australian Institute of Energy...
Saturday 4th July 2020 sees QLD spot prices crunched over long periods of the day, with solar booming
Some quick reflections on a day that saw spot prices in QLD down below $0/MWh for most of the period seeing strong daylight hours, hence strong injections from...
‘NEM merchant pricing–is this the new normal?’ – discussion on Wednesday 15th July 2020
During another week that showed signs of the challenges facing all generators (new and old) in relation to spot prices for energy, invitations were delivered for discussions that...
Trended daily aggregate wind output since January 2010
Prompted by what I'd seen in the (daily) periodic cycling of aggregate wind production recently, I took more of a look at what's been apparent over time.
AER releases Issues Paper on proposed rule change(s) for Semi-Scheduled generators
It's not a surprise to me to see that someone (the AER in this case) has released an Issues Paper canvassing options for changing the way Semi-Scheduled generators...
AEMO releases its ‘2019-20 NEM Summer Operations Review Report’
There's much to consider in today's publication from the AEMO - which looks in detail at the many challenges they faced through summer 2019-20.
What’s been happening with Bald Hills Wind Farm
A brief look at what's been happening at Bald Hills Wind Farm - over the 18 months since January 2019, but most particularly in the past couple weeks...