Bills & Rates
How to Read Your Electricity Bill: Usage, Rates, Fees, and Charges
To read an electricity bill, start with the billing period and total kWh, then separate fixed charges from variable supply and delivery charges. Divide the…
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A little clarity goes a long way 01 / HOME ENERGY
A space heater. Your scenario.1,500 W × 4 hours × 30 days
$36.00180 kWh / 30 days
An illustrative example at $0.20/kWh. Usage charges only.
Your appliance, hours, and rate will change the result.
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Enter an appliance’s power, active hours, and your electricity rate. Start with the example below, then adjust it to your home.
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Reading your first electricity bill?
Understand usage, rates, and the charges in between.
Wondering why your bill went up?
Separate changes in usage from changes in price.
Renting? You have options, too.
Explore changes that don’t need a major renovation.
Thinking about a home upgrade?
Compare costs and assumptions before you commit.
Make the everyday make sense
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Appliance Costs
How Much Does a Space Heater Cost to Run?
A 1,500-watt space heater running at full power costs about 25.5 cents an hour at 17 cents per kWh—roughly $2.04 for an 8-hour day and…
Save Energy
How to Reduce Home Energy Use: A Practical Step-by-Step Guide
Start with 12 months of bills and a room-by-room load inventory, then target the largest uses first: heating and cooling, water heating, the building shell,…
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How our calculations workTHE RUNNING-COST FORMULA
Power×Time×Rate
kW × active hours × price / kWh
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