Mumblin Wind Farm

About the Wind Farm

The Mumblin Wind Farm will consist of nine wind turbine generators with a combined capacity of approximately 54 megawatts (MW), and will generate enough power for approximately 35,000 homes.


Open Letter Concerning Farmworker Accommodation November 2022

Open Letter Concerning Farmworker Accommodation August 2022

Project Update August 2022

In late July 2022 RE Future lodged an updated planning application for the Mumblin Wind Farm with the Minister for Planning, the Hon. Lizzie Blandthorn. The updated planning application is based on a revised wind turbine layout which takes into account feedback from the community and the results of our environmental and engineering assessments.

Key features of the revised wind turbine layout are listed below:

  • The number of wind turbines has been reduced from 15 to 9;
  • The impact to native vegetation has been reduced from 1.8 Ha to 0.3 Ha;
  • The impact to native trees has been reduced from 32 to 8;
  • The wind farm will comply with even the most stringent noise requirements that apply to high amenity areas; and
  • The point of connection with the electricity grid has been moved to an existing powerline on Cobden – Warrnambool Rd, meaning that no new powerlines will be required.

The layout of the proposed Mumblin Wind Farm is shown on the map below.

Environmental Benefits

The wind farm will have significant environmental benefits as it will replace energy that would otherwise be generated by burning fossil fuels.

Modelled energy output per year (MWh)


Greenhouse gas emissions reduction (Tonnes CO2)


Equivalent number of households that can be powered by green energy annually


Connection to the Electricity Grid

Detailed engineering studies are underway to determine the design and construction of the electrical grid connection, in close consultation with the local network operator, Powercor. These studies have revealed that the wind farm will connect to the Cobden Zone Substation via an existing 66 kV powerline. As part of the connection process, the wind farm will cover the cost of upgrading this powerline all the way to Cobden, which will significantly improve the safety and reliability of the local grid for all users in the surrounding area. Even after these upgrades, the connecting powerline will be remain as a conventional 66 kV powerline and will look like other existing powerlines in the region. Importantly, these line works will not result in any new overhead powerlines. Furthermore, there will be no overhead powerlines on the wind farm site as all electrical cables internal to the wind farm site will be located underground.

Meteorological Monitoring

There are now two meteorological masts located on the wind farm site. These masts carry monitoring equipment that measures, records and transmits wind and weather data. This essential data informs the design of the wind turbines to ensure they achieve maximum efficiency while minimising wear and tear.