Symphony

In-house specialist workforce and network connection leadership at national scale.

Symphony delivers through an integrated platform of 100% owned specialist businesses and a national workforce of 1,300+.

— OUR CAPABILITY

One partner. Vertically integrated engineering, manufacturing and construction.

Symphony's capability was formed through five specialist services acquisitions. All 100% owned, integrated into a single platform.

Complementing this delivery capability sits our connections-leadership team with a track record of establishing inside most of Australia's major TNSPs — the regulatory, modelling and commercial frameworks work that govern the connection process. Vertically integrated, and now on the developer's side of the project.

01
High-voltage substations, switchyards and balance of plant
02
Transmission line tower A&E, stringing + civil and structural works
03
Powerlines and regional HV delivery and operations pedigree
04
Civil construction and maintenance
05
Specialist wind resource measurement and engineering
— DELIVERY RECORD

High-voltage projects underway, delivered and energised across Australia.

A selection of connection infrastructure across HV substations, transmission and grid-scale storage, delivered in-house by the teams now part of Symphony.

Tomago BESSUnder construction

Tomago BESS

Tomago, NSW · 2026 · 500 MW
  • HV substation and MV reticulation
  • BESS installation and inter-cell cabling and connectivity
Mortlake BESSCompleted

Mortlake BESS

Mortlake, VIC · 2026 · 300 MW
  • MV reticulation across the BESS site
  • BESS installation and inter-cell cabling and connectivity
Palmer Wind FarmDesign

Palmer Wind Farm

Palmer, SA · 2026 · 288 MW
  • EPC of HV substation with 33 kV reticulation, communications and earthing network
  • Protection and control, reactive plant, plus O&M facility and building
Summerfield BESSIn commissioning

Summerfield BESS

Tepko, SA · 2026 · 240 MW
  • HV substation and MV reticulation
  • BESS installation and inter-cell cabling and connectivity
Waddi Wind FarmDesign

Waddi Wind Farm

Dandaragan, WA · 2026 · 240 MW
  • EPC of 132 kV HV substation with 33 kV reticulation, communications and earthing network
  • Protection and control, reactive plant, plus O&M facility and building
New England BESSUnder construction

New England BESS

Uralla, NSW · 2026 · 200 MW
  • MV switchrooms
  • BESS installation and inter-cell cabling and connectivity
King Rocks Wind FarmCompleted

King Rocks Wind Farm

Kondinin, WA · 2026 · 105 MW
  • HV substation and MV reticulation
  • BESS installation and inter-cell cabling and connectivity
Bulabul (Wellington) BESSCompleted

Bulabul (Wellington) BESS

Wellington, NSW · 2025 · 300 MW
  • HV substation and MV reticulation
  • BESS installation and inter-cell cabling and connectivity
Warradarge Wind Farm Stage 2Completed

Warradarge Wind Farm Stage 2

Warradarge, WA · 2025 · 108 MW
  • MV integration of additional turbines
Project Energy ConnectCompleted

Project Energy Connect

SA & NSW · 2025 · 330 / 500 kV
  • Assembly and erection of 330 kV and 500 kV transmission lines
McIntyre Wind FarmCompleted

McIntyre Wind Farm

Warwick, QLD · 2024 · 923 MW
  • MV reticulation
  • Communications and earthing reticulation network
Goyder South Wind FarmCompleted

Goyder South Wind Farm

Burra, SA · 2024 · 412 MW
  • MV reticulation
  • Communications and earthing reticulation network
Rangebank BESSCompleted

Rangebank BESS

Cranbourne West, VIC · 2024 · 200 MW
  • HV substation and MV reticulation
  • BESS installation and inter-cell cabling and connectivity
Ryan Corner Wind FarmCompleted

Ryan Corner Wind Farm

Ryan Corner, VIC · 2023 · 218 MW
  • EPC of 33 kV switchroom with communications and earthing network
  • Protection and control, plus O&M facility and building
Flat Rock Wind FarmCompleted

Flat Rock Wind Farm

Flat Rock, WA · 2023 · 150 MW
  • EPC of 132 kV HV substation with 33 kV reticulation, communications and earthing network
  • Protection and control, reactive plant, plus O&M facility and building
Crookwell 3 Wind FarmCompleted

Crookwell 3 Wind Farm

Crookwell, NSW · 2023 · 58 MW
  • EPC of 33 kV communications and earthing reticulation network
  • Protection and control, reactive plant, plus O&M facility and building
Dulacca Wind FarmCompleted

Dulacca Wind Farm

Dulacca, QLD · 2022 · 258 MW
  • EPC of 33 / 132 kV HV substation with 2× 132/33 kV transformers, 33 kV switchroom and 132 kV network switching station
  • 33 kV, communications and earthing reticulation; protection and control, 132 kV reactive plant and O&M facility
Kaban Wind FarmCompleted

Kaban Wind Farm

Kaban, QLD · 2022 · 157 MW
  • EPC of 275 kV HV substation with 275 / 33 kV transformer and 33 kV switchroom
  • 33 kV, communications and earthing reticulation; protection and control, reactive plant and O&M facility
Berry Bank Stage 2 Wind FarmCompleted

Berry Bank Stage 2 Wind Farm

Berrybank, VIC · 2022 · 109 MW
  • EPC of 33 kV switchroom with communications and earthing network
  • Protection and control, reactive plant, plus O&M building
Lincoln Gap Stage 2 Wind FarmCompleted

Lincoln Gap Stage 2 Wind Farm

Lincoln Gap, SA · 2021 · 73 MW
  • EPC of 33 kV communications and earthing reticulation network
  • Protection and control, reactive plant and building
Yandin Wind FarmCompleted

Yandin Wind Farm

Lanceline, WA · 2019 · 226 MW
  • EPC of 330 kV HV substation with 330 / 33 kV transformer and 33 kV switchroom
  • 33 kV, communications and earthing reticulation; protection and control and reactive plant
Mortlake Wind FarmCompleted

Mortlake Wind Farm

Mortlake, VIC · 2019 · 214 MW
  • EPC of 220 kV HV substation with 220 / 33 kV transformer and 33 kV switchroom
  • 33 kV, communications and earthing reticulation; protection and control and reactive plant
Warradarge Wind FarmCompleted

Warradarge Wind Farm

Jurien Bay, WA · 2019 · 185 MW
  • EPC of 330 kV HV substation with 2× 330/33 kV transformers and 33 kV switchroom
  • 33 kV, communications and earthing reticulation; protection and control and reactive plant
Collector Wind FarmCompleted

Collector Wind Farm

Goulburn, NSW · 2019 · 183 MW
  • EPC of 33 kV switchroom with communications and earthing network
  • Protection and control, reactive plant, plus O&M facility and building
Berrybank Wind FarmCompleted

Berrybank Wind Farm

Berrybank, VIC · 2019 · 180 MW
  • EPC of 33 kV switchroom with communications and earthing network
  • Protection and control, plus O&M facility and building
Crowlands Wind FarmCompleted

Crowlands Wind Farm

Crowlands, VIC · 2018 · 204 MW
  • Balance-of-plant design, construction and commissioning of 220 / 33 kV HV substation with HV plant and MV switchroom
  • SCADA, protection, MV communications and fibre reticulation, earthing, WTG kiosk transformers and RMUs
Cherry Tree Wind FarmCompleted

Cherry Tree Wind Farm

Seymour, VIC · 2018 · 157 MW
  • EPC of 33 kV switchroom
  • Protection and control
Granville Harbour Wind FarmCompleted

Granville Harbour Wind Farm

Granville Harbour, TAS · 2018 · 140 MW
  • Balance-of-plant design, construction and commissioning of 220 / 33 kV HV substation with HV plant and MV switchroom
  • MV, communications and earthing reticulation network
Moorabool Wind FarmCompleted

Moorabool Wind Farm

Moorabool, VIC · 2018 · 111 MW
  • EPC of 33 kV switchroom
  • Protection and control
Cattle Hill Wind FarmCompleted

Cattle Hill Wind Farm

Waddamana, TAS · 2018 · 90 MW
  • Balance-of-plant design, construction and commissioning of 220 / 33 kV HV substation with HV plant and MV switchroom
  • MV, communications and earthing reticulation network
Bulgana Green Power HubCompleted

Bulgana Green Power Hub

Bulgana, VIC · 2017 · 132 MW
  • Balance-of-plant MV, communications and earthing reticulation, switchroom and switchgear
  • 34 MWh Tesla battery installation, harmonics filter and DVAR yards, civil and concrete
+ many more
3,000+
Projects across the group
100+
HV substations
5,000 km+
Powerlines built
— THE PLATFORM

100% owned. One delivery platform.

Symphony delivers through an integrated platform of 100% owned specialist businesses — RJE at the connection-delivery core, with civil, structural, powerline and specialist-engineering capability alongside.

HV substations, switchrooms, and electrical balance of plant. Engineered, manufactured, and delivered in-house.

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Powerline construction, remote energy systems, and off-grid power station operation across Australia's hardest terrain.

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Transmission line tower foundations, construction, A&E and stringing. Large-scale civil works for energy and connection infrastructure.

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Civil construction, trenching, and earthworks for renewables and digital infrastructure projects.

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Turnkey vertical infrastructure and modular power systems for wind resource assessment, renewables, resources, and communications.

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