price volatility

24th February 2006 – price spikes in Victoria

Demand in Victoria peaked again, bringing with it high prices in Victoria and (to a lesser extent) South Australia.

Indeed, the demand experienced in Victoria (on Friday 24th February) exceeded the previous high level of 8,552MW for summer, set in January 2006.

Our analysis looked at generator behaviour on the occasions of these price spikes.


23rd January 2006 – new record for peak NEM-Wide demand

Based on forecasts NEMMCO had been providing through their PASA process, we expected that it might prove that this week would deliver huge demand levels, and high prices.

Not to disappoint, the market did deliver high levels of demand in all regions:
(a) Peak demand levels were reduced somewhat from the huge levels the previous week in Victoria and South Australia;
(b) Demand levels were also still building to the record level to be experienced the following week in NSW;
(c) Peak demand levels in Queensland were fairly steady (and high) for most weeks of summer.
(d) In combination, a new NEM-wide peak demand target of 30,994MW was set on Monday 23rd January.


Weekly summary of events in Summer 2005-2006

Summer 2005-06 saw Australians sweltering in temperatures 40 degrees and above.

In the National Electricity Market, this led to new peaks in demand and (given the tight supply/demand balance) delivered high (and volatile) spot market pricing.

Here we have compiled a weekly summary of events in the NEM over summer 2005-06.