Monthly Archives: September 2017

Is the market, that wasn't broken, now dead?

Guest author, Andrew Bonwick, posts his thoughts on a range of challenges confronting us in this energy transition.

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Using this train analogy to critique some recent developments with Frequency Control Ancillary Services (FCAS)

[PART 2 of] a post by guest author, Bruce Miller – which was initially posted on LinkedIn as one piece, but which has been broken into two on WattClarity as each part serves different purposes.

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Introducing a train analogy to explain Power Systems 101

[PART 1 of] a post by guest author, Bruce Miller – which was initially posted on LinkedIn as one piece, but which has been broken into two on WattClarity as each part serves different purposes.

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September Update: More Regulation on the Retail Side

Following from my August update, here’s two developments we have seen in relation to retail & networks regulation.

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Initial questions about the LGC market

Our first look at trended LGC production (aggregated by state/territory) and LGC spot prices (monthly average), now possible in NEMreview v7, generates a number of questions…

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Why is wind production being curtailed (or “dispatched down”, more strictly speaking)?

It was inevitable that Semi-Scheduled plant would start to experience times when they are dispatched down. It’s a big prompt to take next steps up the learning curve.

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Analytical Challenge – determining “what might have otherwise been?”

One of the challenges in analysis is to even be conscious of the need to ascertain “what might have otherwise been”.

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How much wind-powered electricity production has been curtailed in SA since these new constraints were invoked?

An article that sums up some decidedly un-quick calculations we’ve performed – looking over an 8 week period to 13th September to estimate how much wind power has been curtailed by the AEMO.

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How significant would it be, if Mt Piper were forced to close (at least temporarily)?

A quick look at the scale of the challenge, if Mt Piper were to be forced to close following a court challenge to coal supplies upstream

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Decoding AEMO’s latest ESOO–will the lights stay on this summer?

Some initial analysis by our guest author, Allan O’Neil, about what AEMO’s Statement of Opportunities 2017 is saying in terms of this coming summer 2017-18

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