Help manage peak demand by ensuring your air conditioner's temperature isn't too cold (minimum of 24 degrees) - or try using it in conjunction with a fan. That way you don't need to have the AC as cold (only need it to cool down to 26-28 degrees) and helps save you money! Or even better, just open the window!
For more info about peak demand, visit Energex's website:http://www.energex.com.au/