NEM Mainland frequency patterns – historical overview from 2024
In this overview, we take a longitudinal look back at how frequency has changed over the years.
Read MoreLong-Term Market trends and forecasts
AEMO publishes an overview of their ‘Minimum System Load procedure’ for Victoria
The AEMO’s publication today (Fri 1st Nov 2024) of their ‘Victorian Minimum System Load Procedure Overview’ 3-page PDF document will be well received.
A longer-range view of operations at Broken Hill BESS
A brief collation of several key events over recent years in the development and early operations of the Broken Hill BESS.
NEM Volatility: A Curse or a Blessing for Grid Battery Storage?
Pan Galanis from Akaysha Energy presented the content from this article at the ‘Operating in the NEM’ session at All Energy in Melbourne last week.
Big Battery Revenues in the NEM Presentation from All-Energy 2024
Alex Leemon of Gridcog delivered this presentation about Big Battery Revenues in the NEM at All-Energy in Melbourne last week.
Long-term trend of monthly minimum ‘Market Demand’ in NSW … prior to forecast lowest point on Sat 26th Oct 2024
With forecasts for a very, very low level of ‘Market Demand’ tomorrow (Sat 26th Oct 2024) in NSW, here’s a longer term trend to show how it would fit in context.
So long solo solar, and hi hybrids?
A summary of the key challenges facing standalone solar and wind farms over the past several years, along with discussion and thoughts about whether new rules surrounding hybrids systems will address these.
Updated long-term trend of Victorian minimum demand
With forecasts for low demand tomorrow (Sat 28th Sept 2024) in VIC during the middle of the day, we take a quick look at how forecasts compare to prior low points.
Origin Energy drops Minimum Generation levels at Eraring Power Station to 180MW
Some news articles this morning, following a media tour of Eraring Power Station, prompted a piece of quick analysis (focused on ER01) of MinGen levels.
An updated look at monthly NEM-wide wind statistics
With the CEC’s Australian Wind Industry Summit 2024 kicks off tomorrow In Melbourne (Monday 9th September 2024). So I have updated the monthly statistics for wind production across the NEM.
A year-by-year look a changing times for “Gate Closure #3”
Gate Closure #3 represents the cut-off time for solar and wind availability forecasts to be used in dispatch. Since 2019 the timings are reducing and narrowing.
A long-range trend of changing times for “Gate Closure #2”
A few questions (from several different directions) gave us pause to run this quick query of how ‘Gate Closure #2’ times (in the rebid process) have changed over time.
‘Market Demand’ in NSW briefly drops to 3,650MW on Saturday 31st August 2024 – a new all-time low point
Saturday 31st August 2024 saw warm temperatures and high rooftop PV yield contribute to a new low point for ‘Market Demand’ in NSW
Are we *still* not building enough replacement Firming Capacity?
In this third excerpt from GenInsights Quarterly Updates for 2024 Q2, we share some perspectives about the amount of Firming Capacity projected to be delivered in net terms, to 2028 (given some withdrawals and some additions).
Coal-fired unit performance has improved markedly from the ‘dog year’ that was 2022
Following the recent release of the review of 2024 Q2 (and belated release of the review of 2024 Q1) here’s some updated statistics on coal unit performance.
Queensland ‘Market Demand’ drops below 3,000MW (for the first time in over 20 years), on Sunday 18th August 2024
Sunday 18th August 2024 sees Queensland reach a new ‘lowest’ point for ‘Market Demand’ … not quite 8 months after it saw a ‘highest ever’ point for ‘Market Demand’. Stretched at both ends, and a clear indication of the challenges of this energy transition.
How rare are simultaneous price spikes in all five NEM regions, like what we saw last night?
A short examination of some of the over-arching factors at play yesterday evening – where prices spiked above $3,000/MWh in all five regions simultaneously.
Final figures for wind production through 2024 Q2
We’ve ticked over the end of 2024 Q2, so here’s a short note to recap the long-range wind production statistics.
Highest-ever wind yield … *and* worst wind yield since June 2017!
… it does not seem logical that both can be true, but (from our look at the numbers) it does appear to be!
Updated long-range trend of aggregate wind production statistics
An accompanying article, to update this trend of long-range production statistics for all wind farms (aggregated) across the NEM.