The Queensland SuperGrid South is a proposed upgrade and extension, linking Central and South Queensland energy grids. The project is Stage Two of the Queensland Energy and Jobs plan, and involves new 500-kilovolt (kV) transmission lines to connect Borumba Pumped Hydro Project into the NEM in Central Queensland.
The project involves 430 kilometres of 500-kV transmission lines:
- The Borumba connection: two 500-kV transmission lines around 140 kilometres in length, and
- The Southern Queensland and Central Queensland connection: one 500-kV transmission line around 290 kilometres in length.
This is an actionable project under AEMO's 2024 ISP.
Key Dates
| Dec 2031 | Expected Construction Completion |
PROJECT HISTORY
| Sep 2022 | The Queensland Government identified the need for the project in its Queensland SuperGrid Infrastructure Blueprint. The Blueprint estimated that the Borumba connection construction would be required to commence in FY2026 and be complete by FY2029 for operation commencement in 2030. The estimated cost was $800 million. The Blueprint estimated that CQ and SQ construction would be required to commence in FY2027 and be complete by FY2030 for operation commencement in 2031. The estimated cost was $1.3 billion. |
| Dec 2023 | The project was identified as an Actionable ISP Project in the draft 2024 AEMO Integrated Systems Plan. The project cost was also updated to an estimated $3.3 billion ± 50 per cent and an updated construction completion date of June 2031 was identified. |
| Jun 2024 | AEMO's final 2024 Integrated Systems Plan confirmed the project's total estimated cost as $3.3 billion ± 50 per cent and updated the completion date to December 2031. |
Estimated Total Cost
(2023)
Sector
Energy
Procurement approach
Traditional Procurement |
Location
Queensland |
Resources
