Deer in the Headlights

[ElwoodBlues1]

I have a question, which may have been answered in previous posts - leaving aside cost, dubious manufacturing practices etc., and just thinking solely about energy requirements, if we built a ridiculously huge bank of solar panels in the outback (half the size of Victoria, for example), would that reliably provide our country's full energy needs ?

Need battery storage, typically Lithium Iron variety, highly expensive to begin with and batteries dont last.
One of the States in the USA is trying a mass solar storage experiment(forget which one), maybe Elon Musk and his fanboys can come up with some new technology. He is spending money on battery technology and wants to go to parts unknown with his SpaceX program so will need some inventive power systems.
Wind farms dont work and are not green either given the cost/resources to build, total waste of money and generate nothing.
Both Solar and Wind also have trouble integrating into the grid due to regulation creating quality issues with frequency.