Tag Archives: guest author

Article: Adding a Slice of Cheese

The South Australian Blackout of 28th September 2016 is not as simple as it looks.

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Article: A sudden series of SA spikes

Tight import limits on the Heywood interconnector and a lull in wind output saw price volatility return to South Australia earlier this week

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Article: NEM FCAS causer pays factor issues for wind and solar farms

Generators used to consider the Australian National Electricity Market (NEM) FCAS causers pays factors (CPF), used to allocate FCAS regulation costs across the market, as an obscure and unimportant technically challenging curiosity. Since 2014, the cost of FCAS regulation services for generators has increased from just under $5 million per year to greater than $60 million for 2016 and now has the attention of all of the generators, especially if their portfolio includes generation assets in regions with a lack of FCAS regulation providers and high prices such as South Australia.

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Article: Fast Frequency Service – Treating the symptom not the cause?

The National Electricity Market (NEM) is designed to operate at 50 Hz. Frequency deviation occurs when generation and load are mismatched. It is important in a lightly meshed and long network such as the NEM to maintain tight frequency control and that frequency response is available throughout the network.

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Article: Let’s talk about FCAS

Ancillary Services Matter! No longer just realm of electrical engineer or energy trading boffins, ancillary services (and particularly Frequency Control Ancillary Services or FCAS which will concentrate on today) have become front and centre in so many ways that barely a day goes by without market observers referring to grid stability, inertia or frequency management.

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Article: Where is the east coast domgas development boom?

When markets operate normally, a sharp rise in the price of any commodity triggers a boom in exploration, development and new supply. But this is not seeming to happen in response to high domestic gas prices. In this article, guest author (Graeme Bethune) examines why.

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Article: Was South Australia lucky the lights stayed on last Friday?

Last Friday’s events took South Australia much closer to the brink of another Black System event than many seem to have realised

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Article: Small solar owners saved the NSW electricity market $888 million during heatwave

New South Wales recently experienced a severe heatwave, which saw parts of the state exceed 45°C. During this three day period, small solar PV (i.e. PV systems that are not registered as generators in the NEM), generated about 17 GWh of power.

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Article: How tight demand/supply situations can make solar forecasting important

NSW demand rose to a near-record high on Friday the 10th of February, and QLD soared to a new record demand on that Sunday, amidst an intense heatwave. While this heat-stressed our electricity markets and infrastructure, the nation’s rooftop solar PV systems were providing critical load reduction under plentiful sunshine.

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Article: Five fixes for the NEM

Load shedding in South Australia on Wednesday 8 February and successive ‘close shaves’ in NSW and Queensland as the heatwave spread north have exposed serious weaknesses in the national electricity market (NEM).

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