At a glance
Tasmania at a glance
Quick answers
TasNetworks, quickly
Who manages transmission and distribution connections in Tasmania?
TasNetworks - unusually, one organisation owns both networks, so both connection tracks run through the same counterparty. Transmission in Tasmania means the 110 kV and 220 kV networks.
What fees apply?
An enquiry fee applies at the connection enquiry, and an application fee with the connection application - which also carries detailed plant design and connection studies against the applicable performance standards.
Do mainland modelling assumptions work for Tasmanian connection studies?
Not cleanly. A hydro-dominated synchronous system with HVDC interconnection to the mainland has frequency and stability behaviour of its own - studies need to model the island system on its own terms.
Does Basslink affect my connection studies?
Yes - a hydro-dominated synchronous system with HVDC interconnection to the mainland means frequency behaviour and interactions with Basslink operation feature in studies in ways mainland proponents may not expect.
Are there standard connection agreements?
Yes - TasNetworks publishes its standard connection agreement suite, and actively encourages pre-feasibility contact before the formal enquiry.
How long does a TasNetworks connection take?
TasNetworks publishes commissioning timeframes and process guidance; as across the NEM, enquiry to agreement commonly spans many months to a year-plus for major plant, with study and negotiation quality the dominant variable.
The pathway
TasNetworks' path to an offer
- Pre-feasibility discussion
TasNetworks actively encourages early contact before the formal enquiry.
- Connection enquiry
With key data on the proposed facility and its electrical attributes; an enquiry fee applies.
- Connection application
Detailed plant design, connection studies against the applicable performance standards and the application fee.
- Offer to connect and agreements
TasNetworks publishes its standard connection agreement suite.
- Delivery and registration
Connection assets built, AEMO registration completed.
- Commissioning and model validation
Staged energisation with R1/R2 evidence.
Studies
An island system's study suite
Mainland modelling assumptions do not transplant cleanly to Tasmania - the system deserves to be modelled on its own terms. Power system studies.
The honest part
Where it gets hard
Tasmania's frequency and stability behaviour is its own study problem - and assessors notice when mainland assumptions are transplanted anyway. APD is accredited with TasNetworks and models the system on its own terms.
Transmission-or-distribution boundary questions land inside a single organisation - clarity about which track your project is on, early, avoids re-work.
Official documents
TasNetworks' own pages
Last reviewed: October 2026 · Always confirm current requirements with the network directly.
Proof, not promises
APD on island power systems
Transpower, New Zealand
Accredited with the owner of another island transmission system - island-grid dynamics are home ground.
The Transpower story →
GPS, proven
Performance standards negotiated and validated across the NEM and the WEM.
The GPS case →Keep navigating