The installation of additional plant in 1920 led to a generating capacity of 28.5 megawatts (38,200 hp).

Steam was supplied by 4 Babcock & Wilcox WIF long drum chain grate boilers.

[2] Surplus capacity in the Railway Commissioner's power grid was sold to municipal councils and other bodies responsible for the supply of electricity to the general public.

Built in the 1890s, 'NESCA' Power Station was situated approximately one mile from Zaara Street, and closed in 1953.

Control of Zaara Street was transferred from the NSWGR to the Electricity Commission of New South Wales on 1 January 1953.

Zaara Street Power Station was demolished in 1978, and all railway facilities in the vicinity were redeveloped into what is now known as The Foreshore.