Victoria Wind 1% solar 4% Brown coal 66%, page-54

Some more anecdotal old shock jock claims I see.

Not a fact anywhere.

No mention of new ethical standards in the battery industry such as moving away from cobalt, significant recycling industries being developed, second lifeing of ev batteries to stationary storage etc.
Let alone all the new stationary battery technologies coming to market.

It seems you need to review the research you clearly haven't done on batteries.

Your information sounds like it's 10 years old and sourced from Sky after dark.