Low-pressure plant: two Willans & Robinson / Dick, Kerr & Co. turbo-alternators were commissioned in 1907 (Nos 6+7), each with a capacity of 2 MW.

The resultant lack of efficient combustion meant that the pollution(black smoke) from the stations' three chimneys was very bad.

In 1915 two Babcock+Wilcox cross drum forced draft boilers each with an output of 40,000 lb/hr and a 5 MW AEG generator(No11) were added.

[1] The low pressure plant remained in service until 1937 when other power stations (Bunnerong) came on line.

Dynamotors were provided at Town Hall and Lang Park to supply direct current to customers.

No new DC customers were accepted after 1935, but the existing supply continued, albeit with mercury-arc rectifiers in later years, until 1985.

This arrangement continued until 1952, when the SCC's generation responsibilities were transferred to the Electricity Commission of New South Wales.

[1] Delayed by a post-Second World War backlog, the first 50 MW turbo-alternator arrived from England in 1948, but the new building designed to house it, construction of which commenced in 1947, was not ready.

When completed in 1955, Pyrmont 'B' was rated at 200 megawatts, making it the largest of the five power stations which existed in the inner Sydney area.

The Electricity Commission of New South Wales, formed in 1950, took control of Pyrmont on 1 January 1952, becoming its third and final operator.