Wobbles in recent days, at Loy Yang A

Reader Beware … just because you’re reading more about coal unit outages here in recent days, it does not necessarily mean that these outages are happening more frequently!

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Yesterday evening we wrote about ‘System frequency drop with trip at Loy Yang A4 on Wednesday 14th August 2024’.

The unit came back online overnight, but (early afternoon) the unit has come back offline – as captured in this record of the alert from ez2view ‘Notifications’ widget at 12:05:

2024-08-15-at-12-05-LYA4-off-again

I have not further into what’s happening at this particular unit – but worth noting that there are (quite unusually) three of the four units offline at the station currently – as captured in this snapshot of the ‘Bids & Offers’ widget in ez2view at 12:45:

2024-08-15-at-12-50-ez2view-BidsOffers-LYA

We see that the station dropped from 4 to 3 units online on  Monday 5th August 2024, just prior to the second bout of volatility that day.  There’s been 1, 2 or 3 units out simultaneously in the 10 days since.

This is something we might delve into later, if time permits.


About the Author

Paul McArdle
Paul was one of the founders of Global-Roam in February 2000. He is currently the CEO of the company and the principal author of WattClarity. Writing for WattClarity has become a natural extension of his work in understanding the electricity market, enabling him to lead the team in developing better software for clients. Before co-founding the company, Paul worked as a Mechanical Engineer for the Queensland Electricity Commission in the early 1990s. He also gained international experience in Japan, the United States, Canada, the UK, and Argentina as part of his ES Cornwall Memorial Scholarship.

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