Areas of deeper analysis









We’re not building enough replacement dispatchable capacity

With completion of GenInsights Quarterly Update for Q1 2023 approaching, and following some conversations recently (and probably this week at EUAA Conference) here are two charts looking backwards just at fully dispatchable plant that highlight one of the ways in which ‘the level of risk in the NEM is escalating’.



Renewable curtailment – forced and not quite so forced

Inspired by the recent article by Tristan Edis (who referenced the GSD2022 in analysis of curtailment of some wind and solar farms), Allan O’Neil follows on with more analysis of the two main types of curtailment. Allan differentiates these as ‘forced curtailment’ and ‘economic offloading’


Liddell’s ghost stalks the market

During early morning Monday 1st May prices spiked in the NSW quite unexpectedly. Guest author Allan O’Neil takes us into the complexities of the EMMS and NEMDE to help us understand the mechanics of how this happened.








Bye X5, Hi X5

From 16th March 2023 the infamous ‘x5 constraint’ has been split into two. We quickly showed previously that the design of the Left Hand Side (LHS) does not vary. In today’s article, valued guest author Allan O’Neil takes a look at what is different.


Splitting the ‘X5 constraint’ into two … double trouble?

From 08:00 (NEM time) this morning, the old ‘X5 constraint’ (i.e. formerly formally known as ‘N^^N_NIL_3’) has been split into two (i.e. addressing separately risk of tripping of either/both Bendigo to Kerang 220kV line and Bendigo to Shepparton 220kV line). Here’s a first quick look…