Usage & Cost

From input to answer.

Open All Tools → Usage & Cost. Select One load or Compare.
Enter power per item in W or kW, quantity and average hours per day.
Enter the electricity rate and check whether it is in cents or dollars per kWh. Choose the currency label and days per month.
Read daily, weekly, monthly and yearly estimates. In Compare, check each load’s assumptions before comparing against the first option.

WORKED EXAMPLE

A daily heating load

Enter

Use 4,500 W, quantity 1, 8 hours/day, CAD 14¢/kWh and 30 days/month.

Read the result

4.5 kW × 8 h = 36 kWh/day. Estimated energy cost is $5.04/day and $151.20 for the 30-day month.

Get more from it.

Use average running time, not simply the number of hours an appliance is switched on.
For cycling equipment, estimate duty time carefully. Compare options using the same service delivered.

Know the limits.

Flat-rate energy estimate only. Fixed charges, demand charges, taxes and time-of-use rates are not modelled.
Yearly totals use 365 days; monthly totals use your chosen month length. No currency exchange is performed.

Verify the inputs, applicable local requirements and real conditions. The app is a calculation aid and can contain errors. See our terms and safety disclaimer.

Common questions.

Is this a prediction of my whole bill?

No. It estimates the entered load’s energy component at your supplied rate.