Michael Hatton (Blaxland, Australian Labor Party) Share this | Hansard source

I am sorry, Member for Lindsay, but three-phase power is needed where there is a big demand on the system. In industrial capacity areas it is normal to have three-phase power. If you are in a major commercial outlet, you go for three-phase power. If you are drawing a great deal from the grid, you need three-phase power because it is, effectively, industrial strength. It has nothing to do with the grid itself, it is how you are accessing and using the power. At Chester Hill Public School they will not get three-phase power. They will not be able to run their air-conditioning systems.

See this speech in context