Investigating wholesale electricity market outcomes

The Australian Competition and Consumer Commission (ACCC) asked HoustonKemp to analyse market outcomes in the National Electricity Market (NEM) and associated contract markets to examine the conduct of generators and ascertain whether they may have engaged in behaviour that would constitute the harmful use of market power.

To this end, we:
• assessed the conduct of wholesale market participants in response to key market events in the NEM by developing metrics for assessing generator biding behaviour; and
• assessed the conduct of gas-powered generators by considering the:

This methodology report was requested by the ACCC to assist in their inquiry into the supply of retail electricity and the competitiveness of retail electricity prices, and accompanies the final results presentation Analysis of NEM events and Impact of gas powered generation on wholesale market outcomes.

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