This is the best summary I could come up with:

For a half hour in the middle of a Saturday last month, enough renewable energy was available to meet all but 1.4% of eastern Australia’s entire electricity demand – the closest to reaching 100% clean power in the grid’s history.

Sunny skies as rain clouds disappeared contributed to an abundance of solar output, driving prices on the wholesale spot market negative for 19% of the time.

For the September quarter, wholesale power prices in the Nem averaged $63 per megawatt hour, down 41% on the previous three months and 71% lower than a year earlier, as Guardian Australia reported.

Electricity demand is also expected to reverse recent declines, with prospects of a hot summer firming as an El Niño takes hold.

Despite the September quarter covering most of winter, when sun irradiance is relatively low, rooftop solar output reached as much as 11.9 gigawatts, 3% more than the previous record.

“The pipeline of new renewables, if supported by firming generation – batteries, hydro and gas – and transmission, will help meet reliability gaps and share low-cost, low-emissions energy to homes and businesses,” she said.

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