Renewable energy's power-lines problem
To power Australia with renewable energy, we’re going to need a lot more transmission lines. Not only do new wind and solar farms have to be connected to the grid, but, as a greater proportion of electricity is generated by intermittent renewables, more connectivity is important for stabilising the system. If it’s not sunny or windy in one area, power can be supplied from where it is. And with coal plant retirement dates continuing to move ever forward, we need to build these lines quickly.
Source: themonthly.com.au