Here’s a snapshot from the BOM cloud map with a timestamp of 13:30 (NEM time) … so that snapshot’s taken ~50 minutes prior to the NEMDE run producing the price for the 14:25 dispatch interval (NEM time).
The cloud pattern will probably have moved somewhat over that period, but seems to suggest some sort of impact of cloud on rooftop PV:
1) Contributing to ‘Market Demand’ forecast difficulties; and
One of three founders of Global-Roam back in 2000, Paul has been CEO of the company since that time.
As an author on WattClarity, Paul's focus has been to help make the electricity market more understandable.
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.
A bout of severe weather for many parts of south-eastern Australia brought challenging weather conditions which appear to have impacted variable renewable energy forecasts for the NEM. The case study delves into forecast differences on the 7th, 8th and 9th of September 2023.
In our third guest authored post this week, Blake Ashton from SA Power Networks talks about the SA islanding event that occurred just over twelve months ago – how SAPN managed solar curtailment, and how their new ‘flexible exports’ option can address future challenges.
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.
1 Commenton "Small (NEM Mainland) frequency wobble, on Thursday afternoon 7th November 2024"
The by-now-familiar constraints on transmission from southern NSW towards the load centres north seem to be playing their part in this volatility as well.
The by-now-familiar constraints on transmission from southern NSW towards the load centres north seem to be playing their part in this volatility as well.