Energy comparison tools estimate what different electricity or gas plans may cost by using your postcode, household usage, tariff type and available discounts. They may compare rates, supply charges, contract terms, fees and conditions, but results can depend on the accuracy of your usage information and how the estimate is calculated. Check whether discounts are conditional, how prices may change, exit fees apply, and whether the plan suits your meter and payment preferences. In most states and territories, you can also use the Australian Government’s Energy Made Easy website; Victorian households can use Victorian Energy Compare.