AER to develop two Rule Change proposals about Semi-Scheduled generation
A brief note about the (also short) notice from the AER relating to two rule change proposals which it has been asked to propose by the COAG Energy Council
Market Reform
Small Solar Should Embrace Control
Tom Geiser, Senior Market Manager at Neoen, discusses the merits of proportional, relative control on the issue of small solar curtailment.
Balancing Supply and Demand …. in the fast approaching ‘NEM 2.0’ world
Recent invitations (from COAG Energy Council and AEMO) prompt some further analysis of the data set assembled for the GSD2019 in order to understand more about one of the challenges in balancing Supply and...
Do you know the difference between Virtual Inertia and Fast Frequency Response?
Our guest author Stephen Sproul looks at how the Dalrymple Battery Energy Storage System (BESS), currently the only source of virtual inertia on the NEM, responded to the November 2019 SA islanding event.
ICYMI – COAG EC flags reliability framework changes
Guest author, Allan O'Neil tries to piece together further detail of what is intended with the apparent tightening of the Reliability Standard (which has sat at 0.002% USE for many years).
AEMC Rule Change (Feb 2020) agrees with much of what ERM proposed – for ‘Improving transparency and extending duration of MT PASA’
A back-dated article, looking back at the two ERM rule change requests which, when passed by the AEMC, had great effect in expanding transparency in the NEM in relation to generator availabilities from 20th...
Review of extremes in ‘Raw Off Target’ performance through 2019, with the Generator Statistical Digest 2019
Using the (hot off the press) Generator Statistical Digest 2019, we take a look across all 304 DUIDs to see how they performed through calendar 2019 in terms of large excesses in 'Raw Off-Target'...
About ERM’s two rule change proposals in at the AEMC
Two earlier articles today prompt this follow-on piece, specifically focusing on what's being requested by ERM Power in two separate rule change requests relating to the MT PASA process.
What is the RRO and why has the South Australian Energy Minister just triggered it?
Perhaps missed amongst all the bushfire-related action in the NEM, the SA Minister for Energy last week initiated the Retailer Reliability Obligation. Guest author Allan O’Neil tries to come to grips with what this...
Let’s Talk Losses
Guest author, Tom Geiser, discusses the different approaches to loss factors amid recent market proposals.
Almost three years on – reflections on Frequency Control in the NEM
Guest author (and power system control specialist), Kate Summers, looks at what's changed since she published a paper on frequency control in the NEM back in January 2017.
All aboard the Negawatt Express … but where are we really headed?
Better late than never (perhaps?) today I post a few thoughts about the AEMC's proposed draft rule change for the incorporation of NegaWatts into centralized dispatch.
War of Losses
Some thoughts from Derek Chapman, from Adani Renewables, in conjunction with two rule change requests at the AEMC relating to Marginal Loss Factors.
Some thoughts about Demand Response, in parallel with AEMC deliberations
A collection of thoughts that have been bumping around in my head for some time about the latest push by various parties to facilitate a broader range of demand response in the NEM, and...
Very preliminary review of Quantity and Quality of Rebids suggests some interesting details…
As part of the process of compilation of our Generator Report Card 2018, we're delving into quite some detail into various aspects of generator bidding and re-bidding. Today I thought it might be useful...
My recent presentation: “Power system control or market control of a power system”
Guest presenter, Kate Summers, spoke at UoM Climate and Energy College on 15th August 2018, with the presentation recorded. Kate shares this today with WattClarity readers.
AEMC released Final Determination on Five Minute Settlement on 28th November 2017
A quick look back at the AEMC's Final Determination on Five Minute Settlement.
The ‘Finkel Review’ released on 1st June 2017
A belated link to the Finkel Review.
Fast Frequency Service – Treating the symptom not the cause?
The National Electricity Market (NEM) is designed to operate at 50 Hz. Frequency deviation occurs when generation and load are mismatched. It is important in a lightly meshed and long network such as the...
Managing Energy Sector Disruption is Like Delivering a Joke’s Punchline… Timing is Everything
One of the most disruptive impacts on Australia’s electricity system over the past decade or so has been the rapid uptake of air conditioners – a consumer driven response to the introduction of inexpensive...