Collection of articles written for Autumn 2017
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Tight import limits on the Heywood interconnector and a lull in wind output saw price volatility return to South Australia earlier this week
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.
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.
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.
Ominous signs for spot price outcomes through Q2 2016 in Victoria, as hedge contract prices climb prior to the imminent closure of Hazelwood.
Last Friday’s events took South Australia much closer to the brink of another Black System event than many seem to have realised
AEMO issues a Market Notice for a "High Impact Outage" - a term not used since 2012.
With high temperatures forecast for SA (hence higher demand) coinciding with low wind, social media references to "blackout" increase. Is this helpful?