Proposed Transmission Line Relocation
Status: Community Engagement
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. Currently being assessed by EPSDD for completeness.
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.