Another factor worth noting in regard to NZ & AU's differences in grid infrastructure is that Aussie's baseload generation is primarily coal powered which has a significant delay involved in ramping up or closing down to address grid loads. NZ by contrast has hydro as our base load supply which can be 'turned on and off' very quickly so is better suited to near instaneously addressing grid inputs by intermittent sources such as wind and solar.
In Australia's case it seems they have addressed the 'laggyness' of their baseload installations by throttling their significant rooftop solar capacity as a input control mechanism. We are far better suited to widescale domestic solar rollout due to our huge hydro storage and generation capacity.
On reading further into that article you would find Brett Christophers' book The Price is Wrong of interest on the matter of the resistance to renewables in the world's generation grids. It's not as straightforward as their cheaper implementation compared to existing methods. There are some very complex economic and political conflicts at play there.
In Australia's case it seems they have addressed the 'laggyness' of their baseload installations by throttling their significant rooftop solar capacity as a input control mechanism. We are far better suited to widescale domestic solar rollout due to our huge hydro storage and generation capacity.
On reading further into that article you would find Brett Christophers' book The Price is Wrong of interest on the matter of the resistance to renewables in the world's generation grids. It's not as straightforward as their cheaper implementation compared to existing methods. There are some very complex economic and political conflicts at play there.