As part of Sydney Metro City & Southwest, a new traction power system is required, including new substations and power supply cables. This includes a new high voltage (33kv) power supply cable in Surry Hills.
Traction power is an electricity network designed to supply train networks. The Sydney Metro network traction power system will be separated and operate independently from the Sydney Trains network.
The new power cable will run from the Ausgrid electrical substation on Little Albion Street to Central Station. From Central, the cable will run inside the Sydney Metro tunnel to a new traction substation at Waterloo.
The cable will run predominantly underneath the roadway, to avoid impacts to properties in the area.