transmission constraints


We’re preparing an extensive “Generator Report Card”, and would welcome discussion (with your pre-orders)

Following from (what we have seen as) an increase in diversity of concerns (and claims) about different aspects of generator performance, we’re leveraging our extensive data set and capabilities to have a deeper look, leading to the publication of a Generator Report Card with data to 31st December 2018. We’d welcome input from those who wish to pre-order their copies now at an initial low rate.

















Background to Winter 2010 in the NEM

Inspired by the price spike experienced this evening, I have spent a little time to put together the background to winters in the NEM.

This will be useful in understanding the context of any other events that occur this winter, and are analysed on WattClarity.


Demand Side Response in NSW on 4th February

On the 4th of February at around 11am energy users in NSW appear to have curtailed their load in response to high prices, resulting in a significant drop in demand. Simultaneously, network conditions and generator rebidding caused the NSW pool price to jump back and forth between extreme prices close to VOLL ($10,000/MWh) and the Market Floor Price (-$1,000/MWh).


South Australia hits the Cumulative Price Threshold

For only the 5th time in 11 years of NEM history (and the 3rd time for South Australia) four consecutive days of price spikes have forced the Cumulative Price to the Threshold, and AEMO has imposed price caps to prevent retailers from going bust.