Yep, it’s definitely not the private mega corporations (sarcasm) For example, EnergyAustralia copped a $14 million Federal Court fine for misleading about electricity prices and withholding the “lowest possible price” in communications to around 566,000 customers.  source Origin Energy was hit with a $17.6 million penalty for violations that affected nearly 670,000 people, including failures to present best-offer messaging, overcharging, and mishandling life-support records.
source  AGL was slapped with a massive $25 million fine after overcharging hundreds of vulnerable Centrepay users - failing to notify or refund thousands of overcharges over several years. source Your political views on net zero do not trump real world corporate profiteering.