Bill Calculations and Plan Choices

Worked examples for estimating your bill, comparing time-of-use, tiered, flat and fixed-price plans, and deciding whether a contract or equal billing suits you.

Comparing energy plans is arithmetic, but only once you know your own usage pattern. The guides in this section show the calculation step by step with official prices and clearly labelled illustrative assumptions, so you can repeat it with the numbers from your bill.

Begin with comparing electricity plans with worked examples, the hub for this section. Then go deeper: estimate a monthly electricity bill from kWh, TOU vs ultra-low overnight vs tiered in Ontario, natural gas bills in GJ and cubic metres, fixed-price contracts versus the default rate, equal billing and budget plans, home EV charging costs by rate plan and the utilities checklist for moving house.

The calculators under Tools do the arithmetic: the bill estimator, the plan comparison, the contract exit-fee payback and the Ontario Electricity Rebate calculator. Results are estimates; your utility's bill is the final word.

Bill Calculations and Plan Choices

Guides in this topic