Proposed Transmission Line Relocation
Status: Environmental Approvals
Responsible Entity: Ginninderry JV
Project Timeline
November 2024
Initial Community Consultation
February 2025
EPBC Assessment
Assessment concluded the project is a 'Not Controlled Action' (i.e. no further approval is required).
December 2025
Environmental Impact Statement Approval
Submitted in December 2024. Environmental Impact Statement (EIS) comments received, with some Entity Comments to address to close out the process.
December 2025 - Late 2026
Development Approval
Late 2026 - Late 2028
Construction & Demolition*
Late 2028
Estimated Project Completion*
*Subject to Business Case & Government approvals
Project Updates
15 April 2025Environmental Impact Statement - Public Notification
Available for review via the following link, with comments closing on 10 June 2025: https://www.planning.act.gov.au/applications-and-assessments/environmental-impact-assessment/environmental-impact-statement/upper-and-lower-tumut-330-kv-transmission-line-realignment
6 November 2024Letter Box Drop Commenced
Project Background
What?
The Ginninderry Joint Venture is preparing to submit a Development Application to the ACT Government regarding the alignment of the Upper Tumut (Line 7) and Lower Tumut (Line 1) 330 kilovolt (kV) transmission lines. Ginninderry’s proposal is to:
- decommission and remove part of the Upper Tumut (Line 1) and Lower Tumut (Line 7) transmission lines;
- divert transmission lines from near the ACT/NSW border and extend southeast, crossing the Molonglo and Murrumbidgee Rivers in the ACT and then connecting to existing towers at the Stockdill Substation on Stockdill Drive in Belconnen, ACT; and
- string an extension line (Line 3C) onto existing towers running between the Canberra and Stockdill Substations along the edge of the suburb of Holt. This additional line would be a continuation of the new Lower Tumut transmission line as it runs past the Stockdill Substation, continuing to the Canberra Substation.
Why?
- Increase availability of housing in the ACT, including affordable housing
- Conservation outcomes and visual amenity would be improved in the Ginninderry Conservation Corridor
- Removal of the lines near Ginninderry would improve local amenity by reducing visual impacts on residential areas
Frequently Asked Questions
- Two Transmission Lines (Lines 1 and Lines 7 being the Upper Tumut and Lower Tumut Lines) that currently run through Ginninderry are proposed to be moved, as per the drawings and visual impact report.
- A second line (Line 3C) will be strung on existing towers running from Stockdill Substation to Canberra Substation (across Pro Hart Avenue), as per the drawings and visual impact report.