Monday’s NSW rain/hail storms also dampens solar output

As an even briefer PS to my earlier brief article about dust storms yesterday, I could not help notice reference to “giant” hail in this warning from the BOM this afternoon this afternoon (echoed by AusGrid):


In his article in the SMH this afternoon, Peter Hannam includes a picture of Parliament House in Canberra to illustrate what that meant:


In a summer that’s almost had everything (no plague of locusts yet?) I did take this quick look at how the hail storm smashed output from Royalla Solar Farm and Mugga Lane Solar Farm (dropped to 0MW as the storm passed) – and also the estimated output for aggregate rooftop PV systems across NSW (aggregate drop in output something like 400MW or 450MW across rooftop PV, added to the 100MW aggregate drop in large solar output) – using this trend query in NEMreview v7:


Probably related to the storm (though not necessarily related to solar production) I did also see Market Notice 72779 issued at 14:20:31 talking about a LOR1 Low Reserve Condition forecast for 15:30 to 18:00 today in NSW, though this was subsequently cancelled at 14:44:39 with Market Notice 72781.

One more example of the challenge for AEMO to be managing in this evolving energy market, moving forwards.


Note, also, that the data feed we have been receiving from the APVI (for estimated production from rooftop PV in NSW) has been upgraded to their newer methodology – which is much more closely aligned with the AEMO’s forecast (following on from my article from 2nd December 2019).  More about that change as time permits…

About the Author

Paul McArdle
One of three founders of Global-Roam back in 2000, Paul has been CEO of the company since that time. As an author on WattClarity, Paul's focus has been to help make the electricity market more understandable.

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