North-south switcheroo as solar conditions swing opposite directions over Autumn 2025
Rainfall and cloud cover has split Australia this autumn, delivering a mixed bag of solar irradiance conditions for solar farms across the NEM.
All Posts
An initial review of demand response on Wednesday 11 June 2025
Wednesday evening 11th June 2025 was a period of tight supply-demand balance, hence energy price volatility – and so this article reviews the response of the demand-side.
An initial walk through bidding during the volatility on Wednesday 11th June 2025
We take a first look at bidding across all units (aggregated up) for Wednesday 11th June 2025, with the volatile evening period of particular interest.
Brief summary of outcomes (Price, Demand and IRPM) for Wednesday evening 11th June 2025
We start with this colour-coded tabular record of a 4-hour period (16:00 to 20:00 NEM time on Wednesday 11th June 2025) as a reference point for further analysis of the evening volatility.
Battery bidding is reshaping FCAS — But Demand Response remains a strategic asset
Paul Moore of Viotas look at recent supply-demand dynamics within the contingency FCAS markets and whether demand response can play a role.
High prices and tight spare supply, as NEM-wide IRPM drops down to 11.48% on Wednesday 11th June 2025
Cold weather this evening has brought prices above $7,000/MWh and tight reserve margins across the NEM.
Prices up in every region, on Wednesday evening 11th June 2025
A very quick note for Wednesday 11th June 2025 with this snapshot from NEMwatch at 17:00 (NEM time) to record the start of some elevated prices.
Examples of self-forecasting behaviours – part 5 – afternoon underestimations
A sequence of afternoon intervals stand out because the forecast appeared to be biased low – self-forecasts suddenly dropped roughly 30-40 percentage points and then increased a short time later.
AEMO notes increased forecast for Unserved Energy (USE) in QLD due to network outages scheduled between Tue 17th to Fri 20th June 2025
Yesterday (Tuesday 10th June 2025) at 14:21 the AEMO published MN127491 that noted 'The increase in USE in Queensland ... is primarily driven by network outages scheduled between 17 and 20 June 2025'.
Cold winter evening driving NEM-wide demand higher, such as on Tuesday 10th June 2025
A cold winter evening (Tuesday 10th June 2025) is driving electricity demand higher, as captured in this snapshot from NEMwatch at the 18:10 dispatch interval.
Guest Authored Posts
24 GW in 24 months, a race against time for the NEM
Following his presentation at All-Energy in Melbourne last week, David Dixon reports on the state of the NEM's ambition to reach 82% renewables by 2030.
The implications of the Solar Sharer Offer (SSO) and Default Market Offer (DMO) review outcome on energy sellers
In this guest-authored article, Connor James explains the upcoming changes to the DMO, including the much publicised Solar Sharer Offer (SSO), and potential implications for energy sellers in NSW, SEQ, and SA.
Detailed Analysis
N/A