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High-voltage design, transmission, 500 kV, grid connection and studies.

High-voltage design, transmission tower design, 500 kV, grid connection and power system studies - plus the substations, lines and storage those modes sit on.

01 · Substations

HV substation design up to 500 kV

One of Australia's deepest in-house substation benches. GIS and AIS. Primary plant, secondary systems, protection, civil/structural, 3D and VR design reviews. Greenfield zone substations and brownfield replacements - Essential Energy, Western Power, Transgrid, ElectraNet and beyond.

Jerrabomberra 132 kV GIS substation

01a · GIS

GIS substations. The whole building.

Bunning Lake for Western Power. South Jerrabomberra for Essential Energy. Civil, structural, mechanical and electrical - halls, basements, frames the GIS sits on - then the same model as a 3D twin, a VR review, and a scale model you can walk around.

Physical scale model of the Bunning Lake GIS yard

02 · Transmission

HV line and cable design

330 kV and 500 kV towers, undercrossing protection, and the detail design packages that sit on Transpower, Western Power and Transgrid panels. HumeLink alpine strain towers to REZ network studies.

VTM 500 kV tower full-scale load test - HumeLink West

03 · Storage & grid connection

BESS, REZ and generation connection

Independent engineer, detailed design and grid connection for utility batteries and hybrid plant. 70+ BESS assignments. Waratah Super Battery SIPS. Eraring. Port Hedland 35 MW. Central West Orana REZ studies. Owner's engineer on solar and wind.

Aerial view of the Waratah Super Battery at Munmorah - rows of battery units beside the high-voltage switchyard

04 · Power system studies

The studies that get plant on the grid - and keep it operating stably and securely.

NEM and WEM connection studies, system strength, Generator Performance Standards, compliance testing and model validation. This is a first-class APD offer, not a footnote: 15 GW+ of studies delivered, GPS registered with AEMO, and the modelling that sits behind REZ, BESS and thermal plant.

Grid connection and power system studies

05 · Telco D&C

Design and construct for the networks that carry the signal.

Digital radio, 4G, 5G small cells, LEO satellite backhaul, nbn power. Field crews plus the design bench - the same house that designs the high-voltage grid also builds the comms that run it.

Digital radio site

06 · EPC & EPCM

Engineer. Procure. Construct. Delivered end-to-end.

Full turn-key delivery with engineering at the core - power stations, renewables, substations 11–500 kV, switchboards and comms. Remote community power stations in the Kimberley, a live switchboard replacement inside Vales Point Power Station, a 60 m off-grid tower at Esperance. Construction supervisors on site, closeout testing and commissioning by the same house.

APD Global ute and helicopter delivering equipment to a remote radio site

07 · Robotics & inspection

Autonomous rover, drone inspection and robotics.

Ground robots with thermal imaging, LiDAR and manipulative tooling, and autonomous drone survey - for condition monitoring and inspection of substations, AI data centres, renewable energy sites, battery assets and transmission infrastructure.

08 · Mining

Power, comms and control for mine sites.

Mission-critical communications for remote mining operations, HV substation SCADA and control in the Pilbara, switchboard integration and process control commissioning - proven on site with BHP, Roy Hill and Mineral Resources.

APD Global field technician in hi-vis pointing up at a lattice communications tower on a remote mine site

Also in the room

Protection, automation & SCADA

Relay settings, IEC 61850, RTU/SCADA cutovers, lab proving, testing and commissioning.

Telco design and construct

Digital radio, 4G, LEO backhaul, nbn power. Field crews plus the design bench - not a drawing pack handed over the fence.

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Earthing & lightning

CDEGS, EPR/LFI/EMF, pipeline assessments, and site testing that matches the model.

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EPC / EPCM

Delivered end-to-end - from remote power station upgrades and switchboard replacements in live power stations to greenfield comms towers. Owner's engineer where the client needs an independent technical voice.

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Robotics, drones & inspection

Autonomous rover and drone inspection of wind turbines, substations and primary plant - AI-driven asset intelligence as the default, not rope access.

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Mining

Mission-critical comms for remote mine sites, substation SCADA and control in the Pilbara, and compliance studies for industrial and mining clients.

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Technical publications

CIGRE Paris Session 2026 papers - protection with IBR, grid-forming BESS validation, UFLS, cybersecurity and AI-driven design.

Browse the papers →