It depends on the number of wind turbines and how windy the site is, but wind farms can create a great deal of energy.

The offshore wind zone proposed in the Illawarra could power up to 3.4 million homes. Dr. Saul Griffith has also pointed out that the offshore wind zone could mean that every single home in the Illawarra is powered by renewable energy, not climate-wrecking coal and gas.

In Victoria, the very small Hepburn Wind Farm powers around 2,000 homes, while the much bigger Stockyard Hill Wind Farm powers around 425,000 homes. A wind farm under construction near Geelong will generate 9% of Victoria's total electricity demand, which can power 765,000 homes.