It is possible that two similarly sized houses right next to each other, that are billed for the same time period and pay the same energy rates under identical energy plans, might have very different amounts on their energy bills.
This can be due to a number of physical factors about the property, the number of occupants or the way the occupants use energy.
For example, one home may have double glazed windows, or more insulation and weather proofing, making it more energy efficient. One house may have a solar power system that generates electricity.
One home may use energy efficient lighting, and the other may have a large number of inefficient down lights installed. A heated and filtered backyard pool can add significant cost to a household electricity bill.
One home may have more energy hungry appliances, such as plasma screen televisions, or mobile devices that require recharging every day. A second fridge can also add considerable cost to a household electricity bill.
The household occupants may use their appliances at different times of the day, which matters if different rates apply to usage that occurs during Peak, Off-peak or Shoulder times of the day.
One home may have more efficient heating, or cooling, or the heating or cooling might be set to different temperatures. One occupant might do more loads of washing. One occupant may line dry their clothes, while the other uses a tumble dryer.
All of these factors will combine uniquely for every household, which may result in quite different amounts when the energy bill arrives. That's why AGL developed My Account, an online tool available to AGL customers to help them understand more about the circumstances of their own energy use.