Strange that you would quote an aritcle that highlights the unreliability of coal generation, and even states that Liddell's future is as a synchronous condenser rather than a generator.
They aren't after base load, they are after system inertia, FFR and short circuit power.
There is the article for you.
https://thehub.agl.com.au/articles/2018/03/does-nsw-need-more-baseload
