— 01
Independent
No regulated business to operate, no split focus. Symphony exists to serve clients connection infrastructure needs. That's our entire business.
Australia's renewables rollout and the AI-driven data centre boom are converging on the grid.
Driving the largest energy and infrastructure build outs of our generation.
02 / WHY WE EXIST
- Renewables rollout puts new power in. Data centre and AI boom takes new power out.
- Both depend on the same critical constraint: grid connection.
- Both rely on the same infrastructure, delivered by the same capability.
- Symphony is purpose built to connect Australia's renewable and digital future.
↓Scroll to explore how we help unlock the grid
03 / THE LEGACY GRID
The grid we have was built for a world that no longer exists.
04 / THE CONVERGENCE
Two transitions are converging on the same network.
05 / THE BOTTLENECK
Every project, generation or load, now hinges on the same thing: the connection.
Connection used to be a component of the project. Now it is the project.
06 / THE CAPACITY GAP
To meet that demand, the country needs to build 20× faster.
07 / WHY THE MARKET CAN'T DELIVER IT
The connection has always been delivered one of two ways. Neither holds up against what's coming.
08 / WHAT SYMPHONY IS
Symphony was built for this.
For a century, Australian electricity meant coal and gas. Large, centralised, predictable. The grid was built around that shape. That shape is now changing from both ends.
60% of coal capacity retires by 2035. Replacing it requires 68 GW of solar, 32 GW of wind, and 19 GW of batteries distributed across the country.
AEMO forecast 500 MW of new data centre load by 2033/34. Within twelve months, enquiries reached 44 GW. 88× the forecast.
Substations, switchyards, transmission lines, and electrical balance of plant make up the most complex and most critical component of any project. They are also the most underserved. Capability, capacity, and certainty at the connection now decide which projects get built.
Australia's only independent, vertically integrated connection infrastructure partner. We lead the regulatory pathway, design the asset, build it, operate it, and stand behind it for the life of the project. Choose your partner on merit, not monopoly.
— 02
Integrated
1,300+ specialists in-house. Electrical, engineering, manufacturing, construction, civil and operations under one roof. We don't subcontract the things you're holding us accountable for.
— 03
Scalable
Engineered as a product, not a project. Standardised, manufactured in-house, and deployed at the speed the energy transition now demands.
— 04
Aligned
For Symphony connection assets are a lifetime performance obligation, not just a delivery milestone. Our success is tied to yours, at handover and for the decades of operation that follow under market leading performance guarantees.
06 / THE CAPACITY GAP
To meet that demand, the country needs to build 20× faster.
07 / WHY THE MARKET CAN'T DELIVER IT
The connection has always been delivered one of two ways. Neither holds up against what's coming.
580 GW of private generation and load want to connect to Australia's grid. The question is no longer who builds the projects. It is who builds the connection, and stands behind it for the life of the asset.
Model 01 / Client-led EPC
ClientTNSP
Client builds and owns the connection.
Client Asset
Generation / Load
Connection
Contestable
Shared Network
Regulated
- Not their core expertise. Network capability gets stretched as projects step up from distribution to 220 kV, 275 kV, 330 kV and 500 kV.
- Fragmented accountability. Consultants, engineers, contractors, operators. The client integrates and carries the risk alone.
- Same constrained EPC market. Procurement competes against every other developer for limited delivery capacity.
Optimised to deliver the build, not to stand behind it.
Model 02 / Regulated Incumbent
ClientTNSP
TNSP's contestable arm builds and owns the connection.
Client Asset
Generation / Load
Connection
Contestable
Shared Network
Regulated
- Historically perceived as safer, structurally isn't. Familiarity with the incumbent does not equal customer-aligned delivery.
- Capability committed to the regulated build. In-house resources are needed for the regulated network expansion only TNSPs can deliver.
- Parent's regulated returns shape the posture. Limited flexibility on design, price, and customer-centric outcomes, even where the contestable arm is ringfenced.
- Same constrained EPC market. With no internal dedicated delivery capability, the offering faces into the market against every other developer for limited delivery capacity — capabilities owned and scaled by Symphony.
Outsourced delivery model cannot provide certainty, with client experience shaped by mis-aligned incentives from a different era.
The contestable middle is open, and built for someone else to own.
Grid connection.
Delivered with certainty.
11.7 GW+ GRID CONNECTIONS MANAGED BY OUR TEAM·7.4 GW+ CONSTRUCTED AND COMMISSIONED·1,300+ IN-HOUSE TEAM NATIONALLY·100+ HV SUBSTATIONS DELIVERED
Engineered as a repeatable, scalable product.
Aligned for project life.
02 / WHY WE EXIST
- Renewables rollout puts new power in. Data centre and AI boom takes new power out.
- Both depend on the same critical constraint: grid connection.
- Both rely on the same infrastructure, delivered by the same capability.
- Symphony is purpose built to connect Australia's renewable and digital future.
↓Scroll to explore how we help unlock the grid
03 / THE LEGACY GRID
The grid we have was built for a world that no longer exists.
For a century, Australian electricity meant coal and gas. Large, centralised, predictable. The grid was built around that shape. That shape is now changing from both ends.
04 / THE CONVERGENCE
Two transitions are converging on the same network.
Coal is retiring. AI is arriving. Both depend on the same thing: connection to the grid. Australia is being asked to build for both at once.
60% of coal capacity retires by 2035. Replacing it requires 68 GW of solar, 32 GW of wind, and 19 GW of batteries.
AEMO forecast 500 MW of new data centre load by 2033/34. Within twelve months, enquiries reached 44 GW. 88× the forecast.
05 / THE BOTTLENECK
Every project, generation or load, now hinges on the same thing: the connection.
Connection used to be a component of the project. Now it is the project.
Substations, switchyards, transmission lines, and electrical balance of plant make up the most complex and most critical component of any project. They are also the most underserved.
06 / THE CAPACITY GAP
To meet that demand, the country needs to build 20× faster.
Total HistoricalNEM GenerationSWIS GenerationPilbara GenerationDC LoadDC Generation
- Australia has historically delivered ~3 GW of HV connections annually.
- Baseline decarbonisation alone requires ~6× scale by 2029.
- The full data centre opportunity requires ~20× scale-up in network infrastructure capacity.
07 / WHY THE MARKET CAN'T DELIVER IT
- The connection has always been delivered one of two ways — either by the customer or by the incumbent TNSP. Neither holds up against what's coming.
- 580 GW of private generation and load want to connect to Australia's grid.
- The question is no longer who builds the projects. It is who builds the connection, and stands behind it for the life of the asset.
- The contestable middle is open, and built for someone else to own.
08 / CLIENT-LED EPC
Client builds and owns the connection.
Client Asset
Connection
Shared Network
- Not their core expertise. Network capability gets stretched as projects step up from distribution to 220 kV, 275 kV, 330 kV and 500 kV.
- Fragmented accountability. Consultants, engineers, contractors, operators. The client integrates and carries the risk alone.
- Same constrained EPC market. Procurement competes against every other developer for limited delivery capacity.
Optimised to deliver the build, not to stand behind it.
09 / REGULATED INCUMBENT
TNSP's contestable arm builds and owns the connection.
Client Asset
Connection
Shared Network
- Historically perceived as safer, structurally isn't. Familiarity with the incumbent does not equal customer-aligned delivery.
- Capability committed to the regulated build. In-house resources are needed for the regulated network expansion only TNSPs can deliver.
- Parent's regulated returns shape the posture. Limited flexibility on design, price, and customer-centric outcomes, even where the contestable arm is ringfenced.
- Same constrained EPC market. With no internal dedicated delivery capability, the offering faces the market against every other developer for limited delivery capacity.
An outsourced delivery model cannot provide certainty, with client experience shaped by mis-aligned incentives from a different era.
10 / WHAT SYMPHONY IS
Symphony was built for this.
Australia's only independent, vertically integrated connection infrastructure partner. We lead the regulatory pathway, design the asset, build it, operate it, and stand behind it for the life of the project.
11 / WHAT SYMPHONY IS
Built to deliver connection with certainty.
— 01
Independent
No regulated business to operate, no split focus. Symphony exists to serve clients connection infrastructure needs. That's our entire business.
— 02
Integrated
1,300+ specialists in-house. Electrical, engineering, manufacturing, construction, civil and operations under one roof. We don't subcontract the things you're holding us accountable for.
— 03
Scalable
Engineered as a product, not a project. Standardised, manufactured in-house, and deployed at the speed the energy transition now demands.
— 04
Aligned
For Symphony connection assets are a lifetime performance obligation, not just a delivery milestone. Our success is tied to yours, at handover and for the decades of operation that follow under market leading performance guarantees.
Grid connection.
Delivered with certainty.
11.7 GW+ GRID CONNECTIONS MANAGED BY OUR TEAM7.4 GW+ CONSTRUCTED AND COMMISSIONED1,300+ IN-HOUSE TEAM NATIONALLY100+ HV SUBSTATIONS DELIVERED
Engineered as a repeatable, scalable product. Aligned for project life.