In parallel with these machinations underway on Friday in the QLD region, it’s also worth noting briefly that aggregate output from all wind farms in the NEM* peaked above 5,000MW for the first time:
* this aggregates all wind farms – both Non-Scheduled and Semi-Scheduled.
The query above uses this trend query in NEMreview v7. A few quick notes:
1) Output data is not published until late 2010 by the AEMO;
2) However before that we can see the growth in installed capacity (i.e. using ‘Maximum Capacity’ registered with the AEMO).
3) The peak shown on the chart for May 2020 is correct, reflecting the peak in aggregate initial MW in the 22:25 dispatch interval on Friday – so technically metered at 22:20 on the evening. However the average shown for May 2020 is incorrect, as it’s only averaging just over 3 days in the month!
4) Given that there’s only 2 wind farms in QLD currently incorporated in the data, it’s worth noting that the constraints on exports from QLD won’t really have affected this much.
5) The remarkable ’wind drought’ that occurred in June 2017 is noted as a stand-out low harvest month in the chart.
6) This occurred just over a year after wind output climbed past 4,000MW.
Out of curiosity I threw the numbers together to produce this trend of monthly Capacity Factor, and see that the peak in each calendar year (which typically occurs during mid-year) has been declining over the past few years. I wonder why?
Interested in reader’s thoughts about what has been contributing to this decline in peak capacity factor?
PS Tuesday 5th May
That same question has been asked in a number of different locations – which I have linked here to help those who want to remain a part of the conversation in various places:
1) Here on LinkedIn
2) Here on Twitter
3) Also added in as a comment to Giles’ article on RenewEconomy.