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Facts & figures

The proposed Uungula Wind Farm could consist up to 249 wind turbines depending on final selection.  Current wind turbine technologies vary in geometry and it is therefore difficult to provide exact details at this early stage of the development. Therefore our approach to assessing impacts of the proposal will be based on greatest number and largest turbine (i.e. most impact) to ensure post consent we retain the flexibility to choose the most suitable wind turbine technology available in the market at the time.

Currently towers range from 80 to 120 metres (m) and individual blade lengths up to 72 m provide the envelope of assessment. These machines provide for a range of generation capacities from 1.5 mega watts (MW) and upwards.

As with all wind farms, this project will also consist of other permanent ancillary structures and equipment which will be positioned in accordance with site constraints. These typically include:

  • Access tracks and hardstand areas suitable for cranes;
  • Overhead and underground transmission lines;
  • Substations (main collector substations within the site, and if necessary, switching substations near to the points of connection);
  • Wind measuring masts;
  • Storage compounds; and,
  • Operations buildings.

During the construction phase of a wind farm additional temporary facilities are likely to be required on-site, for example mobile concrete and ashphalt batching plants, rock crushing compounds, and temporary site office buildings and facilities.

Number of turbines 249
Rating of turbines 2.50 MW
Wind farm size 622.50 MW
Predicted output 1,908,585 MWhr p.a.
Average Households supplied 275,568
Carbon dioxide saved 1,603,211 tonnes p.a.
The capacity factor used in these calculations is 35.00%.


All the calculations used to estimate annual wind farm output, the number of households it will supply and the CO2 emissions saved, are generic figures based upon the calculations below.

1. Average Output
Wind Farm Capacity in MW x Capacity Factor (%) x Annual Hours (8760) = Wind Farm Output (gross yield in MWhr per year)

2. Households Supplied
Predicted Output / Average Australian Electricity Consumption per Household p.a. (6.926 MWhr*) = Number of Households

3. CO2 Emissions Avoided
Wind Farm Output x CO2 Savings per kWhr = CO2 Emissions Avoided 

Our minimum and maximum emissions figures, in kilograms of CO2 emitted per MWhr, were obtained from the Australian Government Department of Climate Change (Jan 2008) National Greenhouse Accounts (NGA) Factors. A link to the site from which this came is also provided below:


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