The Hallett Wind Farm is the name given to five wind farms near the town of Hallett, South Australia:

• Hallett 1 (Brown Hill): completed
• Hallett 2 (Hallett Hill): completed
• Hallett 3 (Mount Bryan): approved
• Hallett 4 (North Brown Hill): under construction
• Hallett 5 (Bluff Range): 2010

Hallett 1

Hallett 1 wind farm, consists of 45 Suzlon S88 turbines each of a rated 2.1 megawatt (MW) for a total of around 95 MW. It is in the Mid-North of South Australia adjacent to an existing 180 MW gas fired peaking power plant. The wind farm construction was carried out by Suzlon Energy Australia Pty. Ltd. This site utilizes an innovative rock anchor solution to support the turbines using only one third of the concrete and reinforcement required in traditional foundations.

Hallett 2

Hallett 2 Wind Farm, also known as Hallett Hill Wind Farm, was completed in late 2009. It consists of 34 Suzlon turbines each 2.1MW, giving an installed capacity is 71.4MW. Up to March 2011 it was averaging a capacity factor of 39%.

Hallett 3

AGL has announced its intention of building the Hallett 3 wind farm.

Local residents are protesting against the construction of this stage due to its proximity to the township of Hallett. The main claims involve noise based on problems experienced by people living in close proximity to turbines in Hallett stages one and two.

Hallett 4

AGL's Hallett 4 Wind Farm, alternatively called North Brown Hill Wind Farm, has 63 turbines with a total installed capacity of 132MW, and cost A$334 million to build. The first power flowed into the south eastern Australian electricity grid in August 2010 and the project was up to full operation in early 2011.

Hallett 5

AGL's Hallett stage 5, also known as Bluff Range Wind Farm will consist of 25 Suzlon turbines each of 2.1MW. It is expected to cost a total of $120 million. Completion is expected in late 2011; on 4th May 2011 three turbines were completed and a number of towers were partly built