A (temporary?) reprieve from the incessant high prices on Sunday 29th May 2022
Something I’ve not seen all that much for quite a while … zero and negative prices in the middle of the day.
rooftop PV
Rooftop PV output during QLD’s heatwave week – Part A – Regional overview
This article – Part A of a 2 part series – reviews how rooftop PV output varied and considers its influence on Queensland demand on the 1st and 2nd of February, 2022.
Price spikes in South Australia above $9,000/MWh – due to unforecast cloud cover?!
Out-of-the-blue, the price spikes up near $10,000/MWh in South Australia on an otherwise ‘boring’ day … a sign of what we should expect increasingly in future?
November a volatile month for Australian solar power
Ben Domensino of Weatherzone discusses an extreme month of wet weather across Australia during November, and its impact on solar generation.
Scheduled Demand drops *below 0MW* in South Australia on Sunday 21st November 2021
South Australia hits a very low point for ‘Market Demand’ on Sunday 21st November 2021 … all the way down to *actually be below zero!*
New record for ‘Minimum Demand’ in the NSW region on Sunday 17th October 2021 (part 2)
A quick look backwards, later in the afternoon, at the new ‘lowest ever’ point reached for demand in the NSW region.
The slide continues – demand in NSW lower still on Monday 4th October 2021
Looks like AEMO will be announcing a new ‘lowest point’ for Operational Demand in NSW later, given what has happened on Monday 4th October 2021 (Labour Day holiday).
… also a new lowest point for NEM-wide demand on Sunday 3rd October 2021
In addition to being a low point for Scheduled Demand and Operational Demand in the QLD region, it was also the case on a NEM-wide basis.
With ‘Minimum Demand’ plunging across mainland regions, AEMO initiates new Market Notices relating to Rooftop PV
Just last Friday the AEMO notified stakeholders more broadly about their new Market Notice Framework about ‘Minimum System Load’ and/or ‘Distributed Photovoltaics (DPV) Contingency’ … prior to Sunday’s new lowest point for minimum demand in South Australia!
Minimum Demand in South Australia drops lower on Sunday 26th September 2021
Sunny skies and mild weather in South Australia on Sunday 26th September sees a new (lower) point for ‘Minimum Demand set in the South Australian region.
NEM-wide minimum demand (in winter) drops lower on Sunday 15th August 2021 … and Renewables Share in VIC higher
Sunday 15th August saw lowest level of Operational Demand in the NEM for a winter period, NEM-wide. This also led to a number of other outcomes (including higher renewable penetration, negative prices, … and chatter on social media).
Price volatility in the QLD region on Saturday 3rd July 2021
A rainy Saturday morning reminds us the price volatility for Q2 in QLD has not totally gone away … with elevated prices for ENERGY and also Contingency FCAS (Raise 6 second and Raise 60 second).
Cyclone in Western Australia douses solar production in South Australia on Tue 13th April 2021
Looking back at Tuesday 13th April 2021 – a day in which the ex-tropical cyclone Seroja in Western Australia caused some wobbles in rooftop solar PV output in South Australia.
Several QLD price spikes on Saturday 10th April 2021
Three price spikes in the QLD region on Saturday 10th April 2021 help to remind us that how increasingly dependent we are on various machinations of the weather (including, on these occasions, cloud cover and solar output).
Yesterday’s unexpected loss of ~500MW of rooftop PV in South Australia (another type of Contingency event – Credible, or Non-Credible?)
Wednesday 13th January 2021 was a busy day in the NEM, with a couple of different events occurring. In this article we explore a sudden and unexpected drop in output across both rooftop PV and large-scale solar in South Australia that delivered both price spikes, and also broader questions about emerging challenges for the grid (and market).
The decline to zero continues… SA demand and whole-of-NEM both drop even lower on Sunday 11th October 2020
Records continue to tumble in the off-season, with the rise of rooftop PV. Both South Australia and Whole-of-NEM hit new low points Sun 11th October 2020.
Rooftop PV drives daytime Scheduled Demand even lower than the low point a month ago … lowest level in 16 years on Sunday 27th September 2020
A month on from the prior low point seen for Scheduled Demand (and Operational Demand) across Queensland in the middle of the day, the low point mark is driven lower still on Sunday 27th September 2020.
New minimum point for Scheduled Demand in South Australia on Sunday 13th September 2020
Hot on the heels of a new record low point for Scheduled Demand (a week ago) in VIC, today sees Scheduled Demand in SA plunge to 315MW in the 11:50 dispatch interval on Sunday 13th September 2020.
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 rooftop PV systems.
Sunshine State forgets its own branding on Saturday 23rd May 2020
Analysis compiled to explore what the impact was of the unusual weather pattern (extensive cloud cover and cold temperatures) seen across a large part of Queensland on Saturday 23rd May 2020.