Coal is dying for economic reasons anyway, cost to much to run compared to alternatives.
Nothing new about equipment getting upgraded one year, then shut down for good the next.
At some point the cost of repairing what did need major repairs, exceeds what money it could bring in as income.
Compare solar to coal
Solar produces power when pointed at the sun.
Coal turbine produces power when feed tons of coal, and keep clean of ash.
Solar maintenance is cleaning dust from panels, and the odd bit of electronics to replace.
Coal turbine maintenance is not bothering to clean the black dust and rust off, heavy welding, pipework, electrical work etc.
Solar power plant is still young in age.
Coal Turbine is a from the 1950's to 1970s, with all the problems that come with it.
Solar produces power where ever there is sunlight
Coal Turbine produces power in places where coal exists, or a railroad.
Solar is just far less work/expense to keep running, has almost no single points of failure, no need to keep shovelling black dirt into it.
As for all this baseload nonsense, the terms you need to learn are "minimum load" and "demand curve"
Solar isn't a problem as people tend to use most of their power when the sun is in the sky.
Wind isn't a problem as the wind is always blowing somewhere in the country, site lots of turbines in areas with few wind free days, and switch off some if you get too much energy.
From wikipedia: "EnergyAustralia began the process of removing useful equipment from the station in 2015"
This didn't happen yesterday, the company are the ones that pulled the plug to lack of cheap coal.
I don't see why politics needs to be involved, in what is honestly about modernising the power grid with modern technology.
NSW does have a very heavy use of coal generated electricity, compared to all the other states, not sure why they are forcing their outdated thinking onto the rest of the country.
I'm not going to shed a tear for a power station built in 1957, it's probably lasted far longer than the engineers that designed it ever intended.