A follow-on to my earlier article of a couple weeks ago, looking at another instance where a team effort was required to counter a drop in system frequency following the loss of generation at a large power station (this time the single unit Kogan Creek power station – the largest single unit in the NEM).
Understanding the FCAS response by all generators when a unit trips in the NEM. A detailed look at the Loy Yang A unit trip in December 2017 and the contribution of the Hornsdale Power Reserve.
Some observations about the events across Victoria and South Australia of Thursday 18th and Friday 19th January 2018.
Guest author, Allan O’Neil, follows up a post in September (reviewing what the AEMO’s ESOO was saying about summer 2017-18) with this review of updated data
Our guest author, Allan O’Neil, poses a number of questions about the recently proposed “National Energy Guarantee” (NEG)
Some initial analysis by our guest author, Allan O’Neil, about what AEMO’s Statement of Opportunities 2017 is saying in terms of this coming summer 2017-18
A brief explainer of what “Unserved Energy” (or USE) actually means, in the context of the AEMO “Electricity Statement of Opportunities 2017” (ESOO) released this week.
Our guest author, Allan O’Neil, posts an overview of the strengths and weaknesses of an increasingly popular metric – the LCOE (or Levellised Cost of Energy)
A closer look at AEMO’s actions during a period of high windfarm output in SA last week
Tight import limits on the Heywood interconnector and a lull in wind output saw price volatility return to South Australia earlier this week
Last Friday’s events took South Australia much closer to the brink of another Black System event than many seem to have realised
A summary timeline of how last Friday’s “white knuckle ride” in NSW evolved, highlighting key events on the day.
Some thoughts by our guest author, about possible reasons why Engie did not bid full output of Pelican Point power station into AEMO on Wednesday 8th February (i.e. the time at which load shedding eventuated).
A look at the supply/demand fundamentals in South Australia and explaining why load shedding was initiated.
Hot weather in Adelaide and Melbourne driving an interesting outlook for Thursday
Very high demands in NSW and “more of the same” in Queensland saw significant price volatility yesterday, with the two states behaving like one larger NEM region
A volatile couple of days in Queensland, with demand response evident
Extremely hot weather in NSW and the NEM’s underappreciated “rail gauge mismatch” contributed to a sharp multi-state price spike during the afternoon peak
Quick review of an isolated early morning spike in Queensland
A look at last Friday’s short sharp price spike in Queensland and why it led to negative settlement residues on the interconnection with NSW