Articles

AEMO issues LOR2 warning for South Australia for next Thursday, 31st May

Yesterday (Thu 24th May) AEMO issued a Low Reserve Condition notice (at LOR2 level) for South Australia next Thursday 31st May. We take a quick look….

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An updated look at daily curtailment of aggregate wind farm output across South Australia

This morning over on Twitter, I was pulled into a discussion that had started with respect to volume of wind energy curtailed in South Australia:   The genesis of this twitter conversation was the AEMO’s “Quarterly Energy Dynamics – Q1 2018” (which seems to be getting better each quarter as a core reference document).  As […]

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Helping our clients make sense of (and grasp the opportunities in) the AEMO’s new MT PASA data sets

A brief first look at AEMO’s new MT PASA data sets – as we push forward in the next upgrade of our ez2view software to help our clients understand the data, and the opportunities (and threats) that the data reveals.

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The “Solar Correlation Penalty” has already arrived in the NEM

Already we are seeing the highly correlated output of solar PV deliver interesting challenges for the NEM – both to the project proponents themselves, and also to the “everything else” that supplies what’s left of the underlying demand from electricity from any source.

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A timely reminder of the need for *much* more diversity in wind harvest patterns

Alerted by our NEMwatch dashboard, I delve into the data and see a scary degree of correlation between the (very low) output of wind farms in south-east South Australia, and (similarly low) output from newer wind farms in northern NSW.

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Network outage, and low wind, combine to drive spot price volatility in the SA region on Thursday 26th April

An unexpected network outage in the south-east of South Australia restricts supplies from Victoria at a time of low wind supply in South Australia and results in the dispatch price spiking to $14,200/MWh from 11:30 and oscillating for the afternoon

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An explainer about electricity demand [take 1]

Following from a steady stream of questions we receive in relation to a range of our products (but in particular with respect to “the RenewEconomy Widget”) we’ve invested some time to put this post together to explain some of what we understand about electricity demand.

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When the NEM’s Largest Generating Unit Trips …

A follow-on to my earlier article of a couple weeks ago, looking at another instance where a team effort was required to counter a drop in system frequency following the loss of generation at a large power station (this time the single unit Kogan Creek power station – the largest single unit in the NEM).

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Renewable energy – did it just laze about over summer?

A review of the high demand periods over summer 2017/18 highlights the important contribution renewable generation is making to meeting peak demand and addressing the reliability of the power system.

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FCAS in Action – What Happens When a Generator Trips? (or Never let the data get in the way of a good story)

Understanding the FCAS response by all generators when a unit trips in the NEM. A detailed look at the Loy Yang A unit trip in December 2017 and the contribution of the Hornsdale Power Reserve.

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