As forecast this morning, our phones were running hot this evening with a series of SMS alerts notifying us of a long run of low IRPM conditions that began at the 17:30 dispatch interval and has continued through to 19:25 as I hit ‘publish’.
Here’s a capture of that same table in NEMwatch as used in yesterday evening’s post, showing all dispatch intervals up until 19:00, when the image was captured:
I’ve particularly highlighted the 18:25 dispatch interval, at which two highlights for the evening are evident:
1) The NEM-wide ‘Market Demand’ hit what seems to have been the high-point of 31,842MW; and
2) The NEM-wide IRPM hit the lowest point of 10.89%
Unfortunately we did not capture this exact dispatch interval (was on another call at the time) but here’s the 18:10 snapshot which shows the overall state of energy supply:
From this we can see:
1) Regional levels of ‘Market Demand’ above the ‘green zone’ … particularly in TAS
2) Yield from Large Solar had dropped to almost 0MW by this time on a winter’s evening
3) Aggregate yield from Wind was only ~1,000MW … so lower than yesterday evening and well below average
4) We know that there are several coal units out:
(a) We’d noted on Friday that ER04, CPP_4 and TNPS1 were all off on unplanned outages.
(b) We’d noted earlier today that MP1 had come offline overnight for repair of a boiler tube leak
(c) YWPS1 and GSTONE4 are also off for planned maintenance.
Interesting times!
Thankfully, at least, Collector-to-Yass is back…
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