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Lines, cables and the REZ studies behind them.

330 kV and 500 kV transmission design, stringing systems and undercrossing protection - across Transgrid, Western Power and Transpower panels, and the REZ studies that opened new generation zones.

APD Global’s transmission team covers the full scope from route selection and environmental constraints through to detailed tower design, conductor selection, foundation engineering, stringing and construction packages. The same team delivers the protection and telecommunications that make the line operable.

Panel appointments with Transgrid, Western Power and Transpower cover overhead line and underground cable work, including 330 kV and 500 kV tower design.

REZ and large-scale network studies

APD provided the network modelling, NEM studies and system strength assessments behind Australia's first Renewable Energy Zone - Central West Orana. The same capability is deployed on REZ planning, connection studies and large-scale network augmentation across the NEM and WEM.

Stringing and construction

The hurdle system for transmission line stringing - designed and delivered by APD - represents the kind of specialised construction engineering that most firms refer out. APD keeps it in-house, which means design intent survives all the way to tensioned conductor.

The art of tower design

HumeLink 500 kV VTM towers

HumeLink 500 kV - East and West. Tender with Acciona. Detail with UGL.

Hurdle system for transmission line stringing

Stringing hurdle system - transmission construction engineering

Selected projects

From alpine strain towers to remote-community lines.

500 kV · Alpine · NSW

HumeLink East and West

Tender-stage design with Acciona. Detail design with UGL - alpine VTM strain towers to 74.2 m and 150 tonnes. Both sides of Transgrid’s 500 kV link.

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REZ · NEM studies

Central West Orana REZ

Tender design for EnergyCo’s first large-scale Renewable Energy Zone - studies, 500 kV and 330 kV lines, and 500 kV and 330 kV substations unlocking 3 GW.

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330 kV · WA

WA Clean Energy Link - North

Twelve line packages, two 330 kV and three 132 kV terminals, protection and communications for Western Power's major network augmentation.

500 kV · QLD

CopperString tower design

500 kV suspension tower D5S2BI and light tension tower D5T15BI on the line that will join Mount Isa to the National Electricity Market.

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