When the last generating units were commissioned, it was the largest power station in the southern hemisphere, with a capacity of 375 megawatts (MW) from eleven turbo-alternators.

The boilers of 'A' Station suffered from reduced efficiency and clinker-related shutdowns owing to shortages of high grade hand-selected coal after the mechanization of mining began.

In 1946, supplementary oil burners were fitted to every boiler, to mitigate the consequences of coal shortages and quality issues.

These final two machines were fed by four Simon-Carves pulverized fuel boilers rated at 300,000lb/hour, exhausting to a large concrete chimney.

A number of industrial disputes relating to unsatisfactory working conditions resulted in reduced power output, sometimes for weeks on end.

The council operated its own private railway which connected the power station with Botany Goods Yard.

[3] The railway continued to operate as a private line when the power station was taken over by the Electricity Commission, including the shunting of a siding to the Boral plant.

The 112 metre-high concrete emission stack of Bunnerong 'B' boilerhouse was demolished in December 1986, and the majority of the huge structures of 'A' and 'B' Stations were razed by 28 June 1987.