The AER in July 2021 published Excel data for the charts from State of the energy market 2021.
Data - State of the energy market 2021 - Market overview
Data - State of the energy market 2021 - Chapter 1 The electricity market in transition
Data - State of the energy market 2021 - Chapter 2 National Electricity Market
Data - State of the energy market 2021 - Chapter 3 Electricity networks
Data - State of the energy market 2021 - Chapter 4 Gas markets in eastern Australia
Data - State of the energy market 2021 - Chapter 5 Regulated gas pipelines
Data - State of the energy market 2021 - Chapter 6 Retail energy markets