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 2020 – with a view to how this has changed from 2011 to 2020.
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 farms under certain conditions.
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.
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.
On Saturday 2nd September, AEMO responded to a BOM-issued “Severe Weather Event” warning by reducing flow capacity west on the Heywood link. Here’s how that looked…