This is an interesting article which compares the Nissan Leaf, Toyota Corolla ICE & Toyota Corolla Hybrid CO2 emissions in each state with the Nissan Leaf CO2 varying per State depending on how the electricity is generated.
The Labor home solar panel/community battery scheme is good for the Nissan Leaf type of EVs but an economic disaster for both State and Commonwealth revenue.
The question has to be asked: who is going to pay for roads & transport infrastructure to compensate for the EV revenue tax forgone + the Commonwealth Grants.