Transgrid operates and manages the high voltage electricity transmission network in NSW and the ACT, connecting generators, distributors, and major end users.

Over decades of technical excellence, we’ve enabled the smooth operation of 13,085km of high voltage transmission wires and 128 substations.

Our network is the backbone of the National Energy Market, enabling energy trading between Australia’s three largest states along the east coast, and supporting the competitive wholesale electricity market, while leading the transition to a clean energy future.

Transgrid's footprint

426 km

High-voltage transmission


14

Substations and switching stations


10.9315 %

Network reliability


72 km

Energy superhighway in development


62 MW

New HV connection commitments


1

Interconnection to other states


$1.8 billion

Investment in the energy transition


0 million+

Connected homes and business