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These 12 projects will upgrade the transmission network across regional Victoria, allowing existing lines to carry more renewable energy across Victoria's electricity grid.
Together these projects have the potential to unlock more than 2.3 gigawatts of new renewable energy, which is enough to provide 16% of Victoria's total annual energy consumption.
They will also deliver $124 million in economic benefits and new opportunities for local communities.
Koorangie Energy Storage System (KESS)
Koorangie Energy Storage System is a 125 megawatt (MW) big battery located west of Kerang. It houses 100 Megapacks (batteries) and features grid forming invertors that maintain stability with renewable energy sources entering the grid.
Status
This project began commercially operating on 11 June 2025. Owned and operated by Sosteneo, the project provides 125MW of services under a 20-year agreement with VicGrid.
The following ministerial orders were issued to help speed up the delivery of this important project to help strengthen Victoria's electricity grid:
Benefit
The grid forming invertor part of the project will increase system strength to boost renewable-hosting capacity in Victoria's north west by up to 300 MW. The battery component of the project will allow Victorians to use solar and wind energy even when the sun isn't shining, or the wind isn't blowing.
Ararat Synchronous Condenser
Australia’s largest synchronous condenser (syncon) at 250 megavolts is located next to the Ararat Terminal Station and provides system strength services. The syncon is a rotating machine that will help balance the grid as abundant wind and solar energy from the west of Victoria feeds into the grid. It maintains a balance between power generation and consumption, quickly responding to sudden changes in power demand to stabilise the grid.
Status
The syncon, the largest of its kind in Australia, is now operating in Elmhurst, supporting system stability to allow the electricity network to host more intermittent energy sources like wind and solar.
Australian Energy Operations delivered and is operating the project, with Victorian renewable company Beon Energy Solutions carrying out the construction work.
The following ministerial orders were issued to help speed up the delivery of this important project that will help to strengthen Victoria's electricity grid:
Benefit
The project will unlock up to 600 megawatts of new renewable energy in western Victoria, providing system strength and maintaining a reliable energy grid for the region, as Victoria transitions to renewable energy.
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Mortlake Turn-In
The Mortlake Turn-In project connects the existing 500 kV Tarrone-to-Haunted Gully transmission line to the Mortlake Terminal Station.
Status
The project was energised by AusNet in August 2025, with practical completion achieved in October 2025.
The following ministerial orders were issued to help speed up the delivery of this important project that is helping to increase capacity for Victoria's electricity grid:
- first Mortlake Turn-In Ministerial Order
- first REZ Stage 1 Projects Ministerial Order
- third REZ Stage 1 Projects Ministerial Order.
Benefit
It will improve network stability and reduce generation constraints in south west Victoria.
Minor augmentations
There are also 9 minor network augmentation projects across Victoria's Murray River, South West and Central North regions.
Status
Seven minor augmentations have been successfully completed. View the status of each of these augmentation projects in the table below.
The following ministerial orders were issued to help speed up the delivery of these important projects that will help to strengthen and modernise Victoria's electricity grid:
| Project | Project name | Provider | Status |
|---|---|---|---|
Project 1 | BATS-TGTS-MLTS | AusNet GPG Lumea | Complete |
| Project 2 South West | HYTS-MLTS | AusNet | Complete |
| Project 3 South West | KTS-SYTS | AusNet | Complete |
| Project 4 South West | MLTS A1 | AusNet | Complete |
| Project 5 Murray River | RCTS-KMTS-MRTS-HOTS-BGTS | AusNet PowerCor Atmos BayWayRe | In progress |
| Project 6 Murray River | RCTS-KMTS-MRTS-HOTS-BGTS | AusNet APA | Complete |
| Project 7 Murray River | Various terminal stations | AusNet TOA2 Lumea | Complete |
| Project 9 Central North | DDTS H3 TR | AusNet | Complete |
| Project 10 Central North | Axedale Solar Farm Runback | AusNet | To be completed in 2028 |
Benefit
These 9 minor power-system augmentations will help address network constraints, increase capacity within the existing transmission network and reduce renewable generator curtailment.
Page last updated: 06/08/26
