His calculations are meaningless junk. Here is tonight's energy generation.
79% non-renewables. And anytime you look, you'll see a good percentage of non-renewables (I never see much below 50%).
So why is the graph by David Osmond all green and yellow? He just imagines there is ??% more renewables than present.
"The generation data for wind, rooftop and utility solar data was rescaled to supply ~60%, 25% and 20% of demand respectively over the year. For example, over the last year utility solar generation has met 5% of demand. The target for utility solar was 20%, so I rescaled the last 7 days of utility solar data by 4x (ie, 20% divided by 5%)." - https://reneweconomy.com.au/a-near-100-per-cent-renewables-grid-is-well-within-reach-and-with-little-storage/
Not to mention 120 GWh of battery, which is about $22 billion every 12 years. Others have also questioned his cost calculations.
