Inverter fire at EPIC Energy’s Mannum 2 Solar Farm
An article from RenewEconomy alerts me to yesterday’s fire at the (in commissioning) Mannum Solar Farm 2 in South Australia. We take a quick initial look.
Market Operations
Hiccups at Loy Yang A4 (Part 1)
A quick look at 3 successive trips at Loy Yang A4 in returning back from a recent forced outage.
A first look at ‘Market Demand’ in South Australia on Saturday 6th January 2024
A quick look back at Saturday 6th January 2024 in South Australia – and the case of an unforecast drop in ‘Market Demand’
Out with a bang or a whimper? And a puzzle or two.
Guest author Allan O’Neil continues our series of posts on very low system demand levels in South Australia and Victoria on New Year’s Eve, with a few unresolved questions remaining
Recapping lowest points for demand today in Victoria (Part 4)
Part 4 in a series today, about what happened in Victoria with minimum demand and warnings of possible intervention to *increase* demand.
Also new ‘lowest ever’ point for Market Demand in South Australia on Sunday 31st December 2023
Fourth article today, taking a quick look at neighbouring South Australia – which has also seen a new ‘lowest ever’ level of Market Demand.
Part 3 … Victorian demand holding up at higher levels than successive AEMO forecasts
Third article today, focusing on an apparent anomaly between AEMO’s P30 and P5 predispatch forecasts for Victorian demand today (Sun 31st Dec 2023).
Part 2 – What’s running in Victoria today (apart from strong rooftop PV)?
A second article today on this challenging day for the Victorian grid, looking at which supply sources are running.
Demand in Victoria drops to a new lowest point on Sunday 31st December 2023, and AEMO flags possible intervention (Part 1?)
First article today, recording a new ‘lowest ever’ point for demand in Victoria (Sun 31st Dec 2023), and possible intervention from AEMO has it looks to drop further, leading to possible grid instability.
25 days to go, until the initial return of Callide C3 (waiting another 141 days for Callide C4)
As December 2023 draws to a close, we take another look at return-to-service expectations for Callide C3 (a couple more weeks) and then Callide C4 (a few more months). References Nick Evans’ interesting articles.
Barron Gorge Hydro Station damaged and offline after flooding from Cyclone Japser in North Queensland
Flooding from Cyclone Jasper has damaged part of the Barron Gorge Hydro Power Station in North Queensland, forcing its units offline until further assessment and repairs.
AEMO forecast for LOR2 in NSW on Tuesday 19th December 2023
A short initial note about AEMO’s currently forecast LOR2 for NSW next Tuesday 19th December 2023.
Belated notice from the AEMO about RERT contracted for yesterday (Thu 14th Dec 2023)
It’s Friday morning and AEMO has just published a Market Notice to alert the market that RERT was contracted for yesterday evening in NSW (Thu 14th Dec 2023).
Disallowed flow north on VIC1-NSW1 another significant factor in tight supply-demand in NSW + QLD
A quick look at how restrictions in southern NSW meant that Victoria could not export to NSW through the afternoon … hence contributing to the tight supply-demand situation.
Wind production ramps down in NSW, coincident with Increased Demand (and then Actual LOR2)
One factor contributing to the tight supply-demand balance is the decline in wind production (and capability) inverse to the rise in ‘Market Demand’.
Actual LOR2 in NSW from 17:30 on Thursday 14th December 2023
‘Market Demand’ has ramped back up, leading to an ‘Actual LOR2’ low reserve condition in NSW on Thu 14th Dec 2023
NSW ‘Market Demand’ climbs past 13,000MW – and IRPM drops – but prices stay moderate
NSW ‘Market Demand’ exceeds 13,000MW for the first time today (Thu 14th Dec 2023)
NSW ‘Market Demand’ squeezes 12,500MW as price passes $500/MWh
Getting closer to the time of forecast peak in demand, the forecast LOR2 is revised downwards.
RERT negotiations underway in NSW … at the same time as the NSW spot price is negative and forecast spikes have disappeared
A strange coincidence with the AEMO ‘intending to commence’ negotiations about Reserve Trader for NSW – for this afternoon/evening.
RERT negotiations commenced in NSW by AEMO on Thursday 14th December 2023
A short post to note that the AEMO have published a market notice stating an intention to commence RERT negotiations in NSW.