Separate the electricity line from the bill
A posted energy price may exclude delivery, regulatory charges, riders, taxes and rebates. Enter the actual current charges when calculating an all-in cost per kWh. Use the energy-only price when modelling an additional device, with the applicable tier or time period.
Choose the rules for your account
Ontario RPP choices and BC Hydro rate schedules illustrate different billing structures. A monthly block may be prorated for an unusual billing period. The rate library identifies future Ontario prices separately from the rate that applies before November. Do not infer eligibility from a province name.
Build a useful comparison
Compare the same kWh, days and tax basis. If the supply price is the only difference, hold the remaining charges constant only when the written terms support that assumption. The local workbench covers provinces and census areas; those geographic labels do not establish utility service boundaries.