From the article you linked: >Generators were “gaming” the system: using their power in concentrated markets to create artificial scarcity of supply and so for

From the article you linked: >Generators were “gaming” the system: using their power in concentrated markets to create artificial scarcity of supply and so force prices up. It is not so much physics and math (which of course do not apply in australia), but politics. The line costs are also separated from supply costs (which is why more than 50% of my bill is not actually for power). The scale of the price gouging outweighes anything physics could throw at the costs. In SA they have had spot pricing of -1k to +14k inside of the 30min pricing window. Your comments do not reflect reality, are poorly researched and contradict the op's entirely true statement.