About System Frequency
The NEM operates at a frequency of 50 hertz (Hz) which means the alternating current should cycle 50 times a second between positive and negative voltage.
supply/demand balance
Substantially different than a year ago, the 2022 ESOO points to challenges ahead in the supply/demand balance
With the AEMO releasing the 2022 ESOO on Wednesday morning 31st August 2022 with the limited time I have available right now I've had a quick look, and in this article highlight some things...
Down 55% – but not out
Over 2,000 MW – or around 55% – of South Australia’s firm supply capacity was unavailable last Friday evening (March 12, 2021), along with virtually all of its large-scale renewable supply (a further 1,800...
$15,000/MWh in South Australia on Friday 12th March 2021 … part 2 (what seems to have happened)
Prices have (finally!) subsided, so here's an initial review of what I can see about what happened in South Australia on Friday evening 12th March 2021. Apologies for mistakes (it's rushed, there will be...
Reflections (from afar) on the electricity shortages and load shedding in Texas
Watching what's unfolded in Texas over the past 24 hours has been rather disconcerting ... but also prompted questions about the broader energy transition. Here are some thoughts.
It’s heating up, in Victoria and South Australia for Friday 1st March
An AEMO Market Notice about "Generator Recall" for Friday's forecast hot weather in South Australia and Victoria prompts a quick look at what's changed in the forecast that would prompt this action.
NEM Summer Outlook 2018/19 – what is AEMO saying?
Following on from Paul’s article on Queensland, this post examines the summer outlook for the other mainland NEM regions, drawing from some key AEMO publications and datasources, namely: the Electricity Statement of Opportunities (ESOO) published...
High temperatures (and high demand) forecast for QLD this Friday
A quick look at AEMO's current forecasts for Friday (prompted by a few conversations externally)...
A brief look at the outlook for QLD region this summer
A quick first look at the way the AEMO is currently seeing the supply/demand balance for the Queensland region through summer and Q1 2019 - with the "out of left field" possibility of industrial...
Recapping a shaky week for the supply-demand balance in the NSW region last week (Mon 4th June to Fri 8th June 2018)
The start of some analysis that helps to identify the variety of factors that combined to give a shaky balance between supply and demand in NSW last week.
High electricity demand forecast for Queensland – on Monday, Tuesday and Wednesday next week
Looks like being an interesting day on Wednesday next week (14th February 2018) with high temperatures currently forecast for parts of both QLD and NSW
Victorian demand rises above 9,000MW – which (in combination with other factors) leads to a volatile day in the southern regions
On a day when high temperatures drove demand in Victoria above 9,000MW (and NEM-wide demand above 30,000MW) we saw some price volatility - with prices in VIC and SA up around $14,000/MWh
If I were going to perform an objective review of what happened last Thursday 18th and Friday 19th, here’s a couple things I would look into…
A starting list of all the factors I would like to delve into, in order to perform an objective review of what happened last Thursday and Friday in Victoria and South Australia
AEMO announces intention to (possibly) intervene in Victoria for Friday 19th January (by invoking Reserve Trader)
AEMO announces the possibility of dispatching "Reserve Trader" tomorrow to address a forecast tight supply/demand balance.
Energy sector unions throw oil onto fire
Putting another cat amongst the pigeons, energy sector unions at Loy Yang A have announced Industrial Action at the station over Christmas.
AEMO notes low reserve conditions for SA (this summer and next) and in Victoria (next summer)
After an AEMO notice of Low Reserve Condition this summer and next in the south, I had a quick look...