Transmission connections

The Victorian transmission network is referred to as Declared Shared Network (DSN). AusNet is the Declared Transmission System Operator (DTSO) for the majority of the DSN in Victoria.

Unlike other jurisdictions of Australia, VicGrid performs some of the responsibilities carried out by other Transmission Network Service Providers (TNSP) whilst managing the connections process.

From 1 November 2025, VicGrid assumed some responsibilities previously managed by AEMO for Victoria.

Below provides an overview of the role performed by VicGrid and AusNet for the Victorian connections process.

Roles in the Victorian connections process

VicGrid	AusNet
Plans future Renewable Energy Zones (REZs). Manages the Victorian connection process including enquiries, applications, agreements, and commissioning. Responsible for connecting parties to the Declared Shared Network (DSN). Coordinates with developers and impacted network service providers.	Owns and operates most of Victoria’s DSN. Provides the physical connection (non-contestable works). Works with VicGrid and developers to deliver safe, reliable connections.

The connection process and how we can support you

The process for connecting to the Victorian transmission network is different from other states. In Victoria, VicGrid manages most of the process, while we provide physical connections to our part of the network.

VicGrid stage	What we do	How to work with us	Outcome
1. Pre-feasibility	Feasibility study, early advice on connection options, property and permits support. High-level scope and indicative cost estimate. Initial technical reviews to support customer and VicGrid in project technical requirements. Early negotiation of connection agreements. Optional early works agreement to fast-track design and procurement.	You can engage us through the AusNet Letter Agreement for your project needs. To accelerate energisation of your project, we can be engaged via an Early Works Agreement. Note: Customer engagement with us during Pre-feasibility, Enquiry and Pre-Application stages is optional.	Better project planning, confidence for financiers. Helps with concept development and capital planning. Accelerates project delivery before formal agreements.
2. Enquiry
3A. Pre-application
3. Application	Develop firm offer for connection after VicGrid’s request.	Services for development of an offer are provided under a Letter Agreement between us and the customer.	Clear connection proposal to assess and accept.
4. Contracts	Draft and negotiate connection agreements.	You can engage AusNet under a Letter Agreement for the negotiation of Connection Agreements.	Formal commitment to construct.
5. Construction	Build and commission AusNet assets,	We will commence construction activities following execution of Connection Agreements.	Physical connection to transmission network.
6. Completion	Coordinate post-energisation activities.	Completion activities are coordinated under the Connection Agreements.	Safe, reliable connection to the network.

Services we provide

Service type	What it covers	Who pays
Prescribed services	Standard transmission services like maintaining lines and stations.	Covered by network charges (TUoS).
Excluded prescribed services	Work done outside the normal regulatory cycle, like asset relocations or upgrades for distribution networks.	Initially paid by the customer, then rolled into network charges.
Non-contestable negotiated services	Customer initiated work, like new connections or changes to AusNet’s network.	Paid by the customer.
Contestable services (provided by AusNet's contestable team)	Services that other providers can deliver, like dedicated customer assets.	Paid by the customer to a supplier of choice.

Ready to discuss or need more information?

1. Read VicGrid's Victorian transmission connection process

2. Contact us to discuss your project. Email regvicconnections@ausnetservices.com.au