"The Estimated Cost is based on the number of days and usage you have entered OR are rough estimates based on the average energy usage for a household of your size (Energy Usage Benchmark by ACIL Tasman) to which plan rates and supply charges have been applied.
The calculation includes all benefits such as available discounts, incentives and feed-in tariffs that you’re eligible for but excludes fees, other once off charges and any concessions/rebates that may apply to you. Additionally, this assumes that all applicable conditions of the energy plan are satisfied.
Some assumptions are made as part of performing the calculation. Actual charges can vary based on your usage, meter type and distributor and whether you qualify for all available discounts.
For more information about rates and fees, see retailers energy price fact sheets (for VIC) and BPID (for NSW, QLD & SA). Additional charges may also apply. You may also be eligible for a state-government concession or rebate on your bill."