This article avoids assuming one national rate design. The names, eligibility, and formulas vary by province and utility.
The main idea is to understand whether the rate rewards using power at certain times, staying under a usage threshold, or choosing a fixed structure.
Time-based
Prices may vary by time of day or day type.
Tiered
A different price may apply after a usage threshold.
Flat
One usage rate may apply regardless of time.
Fixed contract
The supply rate may be fixed for a term where retail choice exists.
Seasonal
Thresholds or rates may change by season.
Eligibility
Not every customer can choose every structure.
Time-based rates
Time-based rates encourage customers to shift some usage away from higher-cost periods. This can help if the household can move laundry, dishwashing, EV charging, or other flexible use.
It may not help much if most usage is unavoidable during higher-price periods.
Tiered rates
Tiered rates charge one price up to a threshold and another price above it. This rewards keeping total usage lower, rather than shifting time of day.
If a home has electric heating, air conditioning, many occupants, or large appliances, staying within a lower tier may be difficult.
Compare behaviour fit
The best rate structure depends on when and how the household uses electricity. A person at home all day may have a different pattern than a household that can run major loads overnight.
Rate structure comparison
| Rate type | What it rewards | Watch out for |
|---|---|---|
| Time-of-use/time-based | Shifting usage to lower-price periods | Hard if usage cannot be moved |
| Tiered | Keeping total usage below thresholds | High-use homes may exceed lower tier |
| Flat | Simplicity | May not reward shifting |
| Fixed contract | Predictability for supply portion | Contract rules and non-energy charges |
| Variable | Potential benefit if market/plan rate falls | Volatility |
| Seasonal | Adjusting for winter/summer usage | Different thresholds or periods |
Rate design checklist
- Identify your current rate structure.
- Check whether you can choose another structure.
- Review usage by time of day if available.
- Identify flexible loads such as laundry or EV charging.
- Compare total bill impact, not only the rate label.
- Watch for seasonal thresholds.
- Check official utility or regulator pages.
Related guides
For broader home-cost context, see Property Costs Explained. For repair and replacement planning, see Repair Costs Explained. These related guides and should be used only where their topics are relevant.
FAQ
Is time-of-use available everywhere in Canada?
No. Rate structures vary by province, utility, and customer type.
Does time-based pricing always save money?
No. It helps only if the household can shift enough usage to lower-price periods.
Are tiered rates simpler?
They can be simpler, but high-use homes may pay more after crossing a threshold.