Which units were most impacted by constraints in 2020?
In this (lengthy) article today, Paul McArdle uses the newly released GSD2020 to take a look at the units that were most frequently impacted by constraints during calendar...
system strength
Case Study Part 4 – Who did What – in QLD on Tuesday 13th October 2020?
In part 4 of this expanding Case Study of the unexpected price spike on Tuesday 13th Oct, linked to a large & sudden drop in output across 10...
Case Study Part 3 – digging still deeper, about what happened in QLD on Tuesday 13th October 2020
In part 3 of this expanding Case Study of the unexpected price spike on Tuesday 13th Oct, linked to a large & sudden drop in output across 10...
Case Study Part 2 – did Rooftop PV kill Large Solar Farm output (and cause the price spike) in QLD on Tuesday 13th October 2020?
Based on some preliminary analysis of the Powerlink's 'Qdata' set (available in ez2view) we present our current hypothesis as to the sequence of the events yesterday in the...
Observing Easter Saturday, a little belatedly
Guest author, Allan O'Neil, invests some time to explore a number of different aspects of Easter Saturday (11th April 2020), each noteworthy in their own right (including low...
A case study in Active Management at a Semi-Scheduled plant – Tuesday 24th July 2018 at Lake Bonney 2 Wind Farm
A detailed look at two specific trading periods in the day (Tuesday 24th July 2018) that saw negative dispatch prices occur at the start of trading periods -...
AEMO updates generator combinations for SA system strength
AEMO has adjusted the formula (i.e. constraint equations) used to manage system strength in South Australia, which has been (since mid-2017) by constraining down the output of wind...
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...
Wind Farm output in SA constrained, again, by AEMO’s “System Strength” constraint
A quick note about high wind speeds in South Australia this afternoon leading to AEMO constraining wind farm output down for System Strength reasons.